From d963772c6633a0610898aaba2ae90d461e8f2de8 Mon Sep 17 00:00:00 2001
From: nishi <nishi@vegaa.systems>
Date: Fri, 7 Jul 2023 23:40:27 +0000
Subject: should be working, should be
git-svn-id: https://svn.vegaa.systems/svn/vega-Vega/trunk@7 a8a8aea2-181d-ee11-89e8-15fd0e089fc4
---
sys/arch/amd64/gdt.c | 82 +++++++
sys/arch/amd64/idt.c | 68 ++++++
sys/arch/amd64/machdep.c | 68 ++++++
sys/arch/amd64/trap.S | 150 +++++++++++++
sys/arch/amd64/trap.c | 104 +++++++++
sys/dev/video/fbdev.c | 55 +++++
sys/include/arch/amd64/frame.h | 116 ++++++++++
sys/include/arch/amd64/gdt.h | 80 +++++++
sys/include/arch/amd64/idt.h | 72 ++++++
sys/include/arch/amd64/trap.h | 78 +++++++
sys/include/dev/video/fbdev.h | 52 +++++
sys/include/lib/bitmap.h | 58 +++++
sys/include/lib/logo.h | 41 ++++
sys/include/lib/stdarg.h | 46 ++++
sys/include/lib/string.h | 44 ++++
sys/include/lib/tty_font.h | 42 ++++
sys/include/sys/ascii.h | 47 ++++
sys/include/sys/cdefs.h | 141 ++++++++++++
sys/include/sys/errno.h | 37 +++
sys/include/sys/limine.h | 497 +++++++++++++++++++++++++++++++++++++++++
sys/include/sys/machdep.h | 53 +++++
sys/include/sys/panic.h | 43 ++++
sys/include/sys/queue.h | 161 +++++++++++++
sys/include/sys/spinlock.h | 53 +++++
sys/include/sys/syslog.h | 53 +++++
sys/include/sys/termios.h | 62 +++++
sys/include/sys/tty.h | 123 ++++++++++
sys/include/sys/types.h | 71 ++++++
sys/include/vm/vm.h | 45 ++++
sys/include/vm/vm_physseg.h | 37 +++
sys/kern/init_main.c | 59 +++++
sys/kern/kern_panic.c | 58 +++++
sys/kern/kern_syslog.c | 96 ++++++++
sys/kern/tty.c | 387 ++++++++++++++++++++++++++++++++
sys/kern/tty_subr.c | 59 +++++
sys/lib/logo.c | 99 ++++++++
sys/lib/string/itoa.c | 135 +++++++++++
sys/lib/string/memcpy.c | 52 +++++
sys/lib/string/memmove.c | 51 +++++
sys/lib/string/memset.c | 42 ++++
sys/lib/string/strlen.c | 42 ++++
sys/lib/tty_font.c | 378 +++++++++++++++++++++++++++++++
sys/vm/vm.c | 37 +++
sys/vm/vm_physseg.c | 180 +++++++++++++++
44 files changed, 4254 insertions(+)
create mode 100644 sys/arch/amd64/gdt.c
create mode 100644 sys/arch/amd64/idt.c
create mode 100644 sys/arch/amd64/machdep.c
create mode 100644 sys/arch/amd64/trap.S
create mode 100644 sys/arch/amd64/trap.c
create mode 100644 sys/dev/video/fbdev.c
create mode 100644 sys/include/arch/amd64/frame.h
create mode 100644 sys/include/arch/amd64/gdt.h
create mode 100644 sys/include/arch/amd64/idt.h
create mode 100644 sys/include/arch/amd64/trap.h
create mode 100644 sys/include/dev/video/fbdev.h
create mode 100644 sys/include/lib/bitmap.h
create mode 100644 sys/include/lib/logo.h
create mode 100644 sys/include/lib/stdarg.h
create mode 100644 sys/include/lib/string.h
create mode 100644 sys/include/lib/tty_font.h
create mode 100644 sys/include/sys/ascii.h
create mode 100644 sys/include/sys/cdefs.h
create mode 100644 sys/include/sys/errno.h
create mode 100644 sys/include/sys/limine.h
create mode 100644 sys/include/sys/machdep.h
create mode 100644 sys/include/sys/panic.h
create mode 100644 sys/include/sys/queue.h
create mode 100644 sys/include/sys/spinlock.h
create mode 100644 sys/include/sys/syslog.h
create mode 100644 sys/include/sys/termios.h
create mode 100644 sys/include/sys/tty.h
create mode 100644 sys/include/sys/types.h
create mode 100644 sys/include/vm/vm.h
create mode 100644 sys/include/vm/vm_physseg.h
create mode 100644 sys/kern/init_main.c
create mode 100644 sys/kern/kern_panic.c
create mode 100644 sys/kern/kern_syslog.c
create mode 100644 sys/kern/tty.c
create mode 100644 sys/kern/tty_subr.c
create mode 100644 sys/lib/logo.c
create mode 100644 sys/lib/string/itoa.c
create mode 100644 sys/lib/string/memcpy.c
create mode 100644 sys/lib/string/memmove.c
create mode 100644 sys/lib/string/memset.c
create mode 100644 sys/lib/string/strlen.c
create mode 100644 sys/lib/tty_font.c
create mode 100644 sys/vm/vm.c
create mode 100644 sys/vm/vm_physseg.c
(limited to 'sys')
diff --git a/sys/arch/amd64/gdt.c b/sys/arch/amd64/gdt.c
new file mode 100644
index 0000000..446306a
--- /dev/null
+++ b/sys/arch/amd64/gdt.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <machine/gdt.h>
+
+struct gdt_entry g_dmmy_gdt[256] = {
+ /* Null */
+ {0},
+
+ /* Kernel code (0x8) */
+ {
+ .limit = 0x0000,
+ .base_low = 0x0000,
+ .base_mid = 0x00,
+ .access = 0x9A,
+ .granularity = 0x20,
+ .base_hi = 0x00
+ },
+
+ /* Kernel data (0x10) */
+ {
+ .limit = 0x0000,
+ .base_low = 0x0000,
+ .base_mid = 0x00,
+ .access = 0x92,
+ .granularity = 0x00,
+ .base_hi = 0x00
+ },
+
+ /* User code (0x18) */
+ {
+ .limit = 0x0000,
+ .base_low = 0x0000,
+ .base_mid = 0x00,
+ .access = 0xFA,
+ .granularity = 0xAF,
+ .base_hi = 0x00
+ },
+
+ /* User data (0x20) */
+ {
+ .limit = 0x0000,
+ .base_low = 0x0000,
+ .base_mid = 0x00,
+ .access = 0xF2,
+ .granularity = 0x00,
+ .base_hi = 0x00
+ },
+};
+
+struct gdtr g_early_gdtr = {
+ .limit = sizeof(struct gdt_entry) * 256 - 1,
+ .offset = (uintptr_t)&g_dmmy_gdt[0]
+};
diff --git a/sys/arch/amd64/idt.c b/sys/arch/amd64/idt.c
new file mode 100644
index 0000000..46eb1f8
--- /dev/null
+++ b/sys/arch/amd64/idt.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <machine/idt.h>
+
+static struct idt_entry idt[256];
+static struct idtr idtr = {
+ .limit = sizeof(struct idt_entry) * 256 - 1,
+ .offset = (uintptr_t)&idt[0]
+};
+
+void
+idt_load(void)
+{
+ LIDT(idtr);
+}
+
+void
+idt_set_desc(uint8_t vec, uint8_t type, uintptr_t isr, uint8_t ist)
+{
+ struct idt_entry *desc;
+
+ if (vec >= 255) {
+ /* Invalid vector */
+ return;
+ }
+
+ desc = &idt[vec];
+ desc->off_lo = __SHIFTOUT(isr, __MASK(16));
+ desc->off_mid = __SHIFTOUT(isr, __MASK(16) << 16);
+ desc->off_hi = __SHIFTOUT(isr, __MASK(32) << 32);
+ desc->segsel = 0x8; /* Kernel CS */
+ desc->type = type;
+ desc->dpl = 3;
+ desc->p = 1;
+ desc->zero = 0;
+ desc->zero1 = 0;
+ desc->reserved = 0;
+ desc->ist = ist;
+}
diff --git a/sys/arch/amd64/machdep.c b/sys/arch/amd64/machdep.c
new file mode 100644
index 0000000..dd2cdc7
--- /dev/null
+++ b/sys/arch/amd64/machdep.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/machdep.h>
+#include <sys/cdefs.h>
+#include <machine/trap.h>
+#include <machine/idt.h>
+
+#define ISR(func) ((uintptr_t)func)
+
+__weak void
+interrupts_init(struct processor *processor)
+{
+ __USE(processor);
+ idt_set_desc(0x0, IDT_TRAP_GATE_FLAGS, ISR(arith_err), 0);
+ idt_set_desc(0x2, IDT_TRAP_GATE_FLAGS, ISR(nmi), 0);
+ idt_set_desc(0x3, IDT_TRAP_GATE_FLAGS, ISR(breakpoint_handler), 0);
+ idt_set_desc(0x4, IDT_TRAP_GATE_FLAGS, ISR(overflow), 0);
+ idt_set_desc(0x5, IDT_TRAP_GATE_FLAGS, ISR(bound_range), 0);
+ idt_set_desc(0x6, IDT_TRAP_GATE_FLAGS, ISR(invl_op), 0);
+ idt_set_desc(0x8, IDT_TRAP_GATE_FLAGS, ISR(double_fault), 0);
+ idt_set_desc(0xA, IDT_TRAP_GATE_FLAGS, ISR(invl_tss), 0);
+ idt_set_desc(0xB, IDT_TRAP_GATE_FLAGS, ISR(segnp), 0);
+ idt_set_desc(0xD, IDT_TRAP_GATE_FLAGS, ISR(general_prot), 0);
+ idt_set_desc(0xE, IDT_TRAP_GATE_FLAGS, ISR(page_fault), 0);
+ idt_load();
+}
+
+void
+processor_halt(void)
+{
+ __ASMV("cli; hlt");
+}
+
+__weak void
+processor_init(struct processor *processor)
+{
+ gdt_load(processor->gdtr);
+ interrupts_init(processor);
+}
diff --git a/sys/arch/amd64/trap.S b/sys/arch/amd64/trap.S
new file mode 100644
index 0000000..31792c5
--- /dev/null
+++ b/sys/arch/amd64/trap.S
@@ -0,0 +1,150 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <machine/frame.h>
+#include <machine/trap.h>
+
+.text
+.globl breakpoint_handler
+breakpoint_handler:
+ push $0
+ push_trapframe $TRAP_BREAKPOINT
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl arith_err
+arith_err:
+ push $0
+ push_trapframe $TRAP_ARITH_ERR
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl overflow
+overflow:
+ push $0
+ push_trapframe $TRAP_OVERFLOW
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl bound_range
+bound_range:
+ push $0
+ push_trapframe $TRAP_BOUND_RANGE
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl invl_op
+invl_op:
+ push $0
+ push_trapframe $TRAP_INVLOP
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl double_fault
+double_fault:
+ push_trapframe $TRAP_DOUBLE_FAULT
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl invl_tss
+invl_tss:
+ push_trapframe $TRAP_INVLTSS
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl segnp
+segnp:
+ push_trapframe $TRAP_SEGNP
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl general_prot
+general_prot:
+ push_trapframe $TRAP_PROTFLT
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl page_fault
+page_fault:
+ push_trapframe $TRAP_PAGEFLT
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
+
+.globl nmi
+nmi:
+ push $0
+ push_trapframe $TRAP_NMI
+
+ handle_trap
+
+ /* TODO */
+ cli
+ hlt
diff --git a/sys/arch/amd64/trap.c b/sys/arch/amd64/trap.c
new file mode 100644
index 0000000..93ae17c
--- /dev/null
+++ b/sys/arch/amd64/trap.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <machine/trap.h>
+#include <sys/cdefs.h>
+#include <sys/spinlock.h>
+#include <sys/syslog.h>
+#include <sys/panic.h>
+
+static const char *trap_type[] = {
+ [TRAP_BREAKPOINT] = "breakpoint",
+ [TRAP_ARITH_ERR] = "arithmetic error",
+ [TRAP_OVERFLOW] = "overflow",
+ [TRAP_BOUND_RANGE] = "bound range exceeded",
+ [TRAP_INVLOP] = "invalid opcode",
+ [TRAP_DOUBLE_FAULT] = "double fault",
+ [TRAP_INVLTSS] = "invalid TSS",
+ [TRAP_SEGNP] = "segment not present",
+ [TRAP_PROTFLT] = "general protection",
+ [TRAP_PAGEFLT] = "page fault",
+ [TRAP_NMI] = "non-maskable interrupt"
+};
+
+static const int TRAP_COUNT = __ARRAY_COUNT(trap_type);
+static ftrap_handler_t ftrap_handler = NULL;
+static struct spinlock ftrap_handler_lock = { 0 };
+
+static void
+trap_print(struct trapframe *tf)
+{
+ const char *mode;
+
+ if (tf->trapno < TRAP_COUNT) {
+ kprintf("** Fatal %s", trap_type[tf->trapno]);
+ } else {
+ kprintf("** Unknown trap %d", tf->trapno);
+ }
+ mode = __TEST(tf->trapno, TRAP_USER) ? "user" : "supervisor";
+ kprintf(" in %s mode **\n", mode);
+}
+
+/*
+ * Registers a handler for
+ * *fatal* traps.
+ *
+ * => Can block
+ */
+void
+register_ftrap_handler(ftrap_handler_t handler)
+{
+ spinlock_acquire(&ftrap_handler_lock);
+ ftrap_handler = handler;
+ spinlock_release(&ftrap_handler_lock);
+}
+
+/*
+ * Handles traps.
+ *
+ * => Can block
+ */
+void
+trap_handler(struct trapframe *tf)
+{
+ trap_print(tf);
+
+ /*
+ * XXX: Handle NMIs better. For now we just
+ * panic.
+ */
+ if (tf->trapno == TRAP_NMI) {
+ kprintf("Possible hardware failure?\n");
+ panic("Caught NMI; bailing out\n");
+ }
+
+ panic("Caught pre-sched exception\n");
+}
diff --git a/sys/dev/video/fbdev.c b/sys/dev/video/fbdev.c
new file mode 100644
index 0000000..3ef3d8f
--- /dev/null
+++ b/sys/dev/video/fbdev.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/types.h>
+#include <sys/limine.h>
+#include <dev/video/fbdev.h>
+
+#define FRAMEBUFFER \
+ framebuffer_req.response->framebuffers[0]
+
+static volatile struct limine_framebuffer_request framebuffer_req = {
+ .id = LIMINE_FRAMEBUFFER_REQUEST,
+ .revision = 0
+};
+
+struct fbdev
+fbdev_get_front(void)
+{
+ struct fbdev ret;
+
+ ret.mem = FRAMEBUFFER->address;
+ ret.width = FRAMEBUFFER->width;
+ ret.height = FRAMEBUFFER->height;
+ ret.pitch = FRAMEBUFFER->pitch;
+ return ret;
+
+}
diff --git a/sys/include/arch/amd64/frame.h b/sys/include/arch/amd64/frame.h
new file mode 100644
index 0000000..6239eff
--- /dev/null
+++ b/sys/include/arch/amd64/frame.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _AMD64_FRAME_H_
+#define _AMD64_FRAME_H_
+
+#if !defined(__ASSEMBLER__)
+struct trapframe {
+ uint64_t trapno;
+ uint64_t rax;
+ uint64_t rcx;
+ uint64_t rdx;
+ uint64_t rbx;
+ uint64_t rsi;
+ uint64_t rdi;
+ uint64_t rbp;
+ uint64_t r8;
+ uint64_t r9;
+ uint64_t r10;
+ uint64_t r11;
+ uint64_t r12;
+ uint64_t r13;
+ uint64_t r14;
+ uint64_t r15;
+ /* Pushed by hardware */
+ uint64_t error_code;
+ uint64_t rip;
+ uint64_t cs;
+ uint64_t rflags;
+ uint64_t rsp;
+ uint64_t ss;
+};
+#else
+/*
+ * XXX: Before this macro is invoked,
+ * you should determine if an error
+ * code will be present already on the
+ * stack. If not, push a null qword as
+ * padding (e.g push $0).
+ *
+ * There *must* be a value used
+ * as an error code whether that be
+ * a real error code or just padding.
+ *
+ * Failing to do so will result in
+ * undefined behaviour.
+ *
+ */
+.macro push_trapframe trapno
+ push %r15
+ push %r14
+ push %r13
+ push %r12
+ push %r11
+ push %r10
+ push %r9
+ push %r8
+ push %rbp
+ push %rdi
+ push %rsi
+ push %rbx
+ push %rdx
+ push %rcx
+ push %rax
+ push \trapno
+.endm
+
+.macro pop_trapframe trapno
+ add $8, %rsp /* Trapno */
+ pop %rax
+ pop %rcx
+ pop %rdx
+ pop %rbx
+ pop %rsi
+ pop %rdi
+ pop %rbp
+ pop %r8
+ pop %r9
+ pop %r10
+ pop %r12
+ pop %r13
+ pop %r14
+ pop %r15
+ add $8, %rsp /* Pop error code */
+ iretq
+.endm
+#endif /* !defined(__ASSEMBLER__) */
+#endif /* !_AMD64_FRAME_H_ */
diff --git a/sys/include/arch/amd64/gdt.h b/sys/include/arch/amd64/gdt.h
new file mode 100644
index 0000000..756e2a6
--- /dev/null
+++ b/sys/include/arch/amd64/gdt.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef AMD64_GDT_H_
+#define AMD64_GDT_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+#define GDT_TSS 5
+#define KERNEL_CS 0x8
+#define KERNEL_DS 0x10
+
+struct __packed gdt_entry {
+ uint16_t limit;
+ uint16_t base_low;
+ uint8_t base_mid;
+ uint8_t access;
+ uint8_t granularity;
+ uint8_t base_hi;
+};
+
+struct __packed gdtr {
+ uint16_t limit;
+ uintptr_t offset;
+};
+
+static inline void
+gdt_load(struct gdtr *gdtr)
+{
+ __asm("lgdt %0\n"
+ "push $8\n" /* Push CS */
+ "lea 1f(%%rip), %%rax\n" /* Load 1 label address into RAX */
+ "push %%rax\n" /* Push the return address (label 1) */
+ "lretq\n" /* Far return to update CS */
+ "1:\n"
+ " mov $0x10, %%eax\n"
+ " mov %%eax, %%ds\n"
+ " mov %%eax, %%es\n"
+ " mov %%eax, %%fs\n"
+ " mov %%eax, %%gs\n"
+ " mov %%eax, %%ss\n"
+ :
+ : "m" (*gdtr)
+ : "rax", "memory"
+ );
+}
+
+extern struct gdt_entry g_dmmy_gdt[256];
+extern struct gdtr g_early_gdtr;
+
+#endif /* !AMD64_GDT_H_ */
diff --git a/sys/include/arch/amd64/idt.h b/sys/include/arch/amd64/idt.h
new file mode 100644
index 0000000..d3b623d
--- /dev/null
+++ b/sys/include/arch/amd64/idt.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _AMD64_IDT_H_
+#define _AMD64_IDT_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+#define LIDT(idtr) __ASMV("lidt %0" \
+ :: "m" (idtr))
+
+#define IDT_TRAP_GATE_FLAGS 0x8F
+#define IDT_INT_GATE_FLAGS 0x8E
+#define IDT_INT_GATE_USER 0xEE
+
+/*
+ * AMD64 Interrupt Gate Descriptor.
+ */
+struct idt_entry {
+ uint16_t off_lo; /* Low 16 bits of ISR offset */
+ uint16_t segsel; /* Segment selector, hardcode to kernel CS */
+ uint8_t ist : 2; /* Interrupt stack table */
+ uint8_t zero : 1; /* Unused: keep zero */
+ uint8_t zero1 : 4; /* Unused: keep zero */
+ uint8_t type : 4; /* Gate type */
+ uint8_t zero2 : 1; /* Unused: keep zero */
+ uint8_t dpl : 2; /* Descriptor privilege level */
+ uint8_t p : 1; /* Present (keep 1 to mark as valid) */
+ uint16_t off_mid; /* Middle 16 bits of ISR offset */
+ uint32_t off_hi; /* High 32-bits of ISR offset */
+ uint32_t reserved; /* Reserved: keep zero */
+};
+
+struct __packed idtr {
+ uint16_t limit;
+ uintptr_t offset;
+};
+
+
+void idt_set_desc(uint8_t vec, uint8_t type, uintptr_t isr, uint8_t ist);
+void idt_load(void);
+
+#endif /* !_AMD64_IDT_H_ */
diff --git a/sys/include/arch/amd64/trap.h b/sys/include/arch/amd64/trap.h
new file mode 100644
index 0000000..e72ae11
--- /dev/null
+++ b/sys/include/arch/amd64/trap.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _AMD64_TRAP_H_
+#define _AMD64_TRAP_H_
+
+#if !defined(__ASSEMBLER__)
+#include <sys/types.h>
+#include <machine/frame.h>
+#endif /* !defined(__ASSEMBLER__) */
+
+#define TRAP_BREAKPOINT 0 /* Breakpoint */
+#define TRAP_ARITH_ERR 1 /* Arithmetic error (e.g division by 0) */
+#define TRAP_OVERFLOW 2 /* Overflow */
+#define TRAP_BOUND_RANGE 3 /* BOUND range exceeded */
+#define TRAP_INVLOP 4 /* Invalid opcode */
+#define TRAP_DOUBLE_FAULT 5 /* Double fault */
+#define TRAP_INVLTSS 6 /* Invalid TSS */
+#define TRAP_SEGNP 7 /* Segment not present */
+#define TRAP_PROTFLT 8 /* General protection */
+#define TRAP_PAGEFLT 9 /* Page fault */
+#define TRAP_NMI 10 /* Non-maskable interrupt */
+
+/* Trap is coming from user mode */
+#define TRAP_USER 0x100
+
+#if !defined(__ASSEMBLER__)
+typedef void(*ftrap_handler_t)(void);
+
+void breakpoint_handler(void *sf);
+void arith_err(void *sf);
+void overflow(void *sf);
+void bound_range(void *sf);
+void invl_op(void *sf);
+void double_fault(void *sf);
+void invl_tss(void *sf);
+void segnp(void *sf);
+void general_prot(void *sf);
+void page_fault(void *sf);
+void nmi(void *sf);
+void register_ftrap_handler(ftrap_handler_t handler);
+void trap_handler(struct trapframe *tf);
+#else
+.macro handle_trap
+ mov %rsp, %rdi
+ call trap_handler
+.endm
+#endif /* !defined(__ASSEMBLER__) */
+
+#endif /* !_AMD64_TRAP_H_ */
diff --git a/sys/include/dev/video/fbdev.h b/sys/include/dev/video/fbdev.h
new file mode 100644
index 0000000..23cc10a
--- /dev/null
+++ b/sys/include/dev/video/fbdev.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _FBDEV_H_
+#define _FBDEV_H_
+
+#include <sys/types.h>
+
+struct fbdev {
+ void *mem;
+ uint32_t width;
+ uint32_t height;
+ uint32_t pitch;
+};
+
+static inline size_t
+fbdev_get_index(const struct fbdev *fbdev, uint32_t x, uint32_t y)
+{
+ return x + y * (fbdev->pitch/4);
+}
+
+struct fbdev fbdev_get_front(void);
+
+#endif /* !_FBDEV_H_ */
diff --git a/sys/include/lib/bitmap.h b/sys/include/lib/bitmap.h
new file mode 100644
index 0000000..98c677e
--- /dev/null
+++ b/sys/include/lib/bitmap.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _LIB_BITMAP_H_
+#define _LIB_BITMAP_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+typedef uint8_t *bitmap_t;
+
+static inline void
+bitmap_set_bit(bitmap_t bitmap, size_t bit)
+{
+ bitmap[bit / 8] |= __BIT(bit % 8);
+}
+
+static inline void
+bitmap_unset_bit(bitmap_t bitmap, size_t bit)
+{
+ bitmap[bit / 8] &= ~(__BIT(bit % 8));
+}
+
+static inline bool
+bitmap_test_bit(bitmap_t bitmap, size_t bit)
+{
+ return __TEST(bitmap[bit / 8], __BIT(bit % 8));
+}
+
+#endif /* !_LIB_BITMAP_H_ */
diff --git a/sys/include/lib/logo.h b/sys/include/lib/logo.h
new file mode 100644
index 0000000..77e90aa
--- /dev/null
+++ b/sys/include/lib/logo.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/types.h>
+#include <sys/syslog.h>
+
+#define COPYRIGHT "Copyright (c) 2023 Ian Marco Moffett and the VegaOS team."
+
+#define PRINT_LOGO() \
+ kprintf("%s v%s\n\n", g_logo, VEGA_VERSION); \
+ kprintf("\t%s\n\n", COPYRIGHT);
+
+extern uint8_t g_logo[];
diff --git a/sys/include/lib/stdarg.h b/sys/include/lib/stdarg.h
new file mode 100644
index 0000000..6676de8
--- /dev/null
+++ b/sys/include/lib/stdarg.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _LIB_STDARG_H_
+#define _LIB_STDARG_H_
+
+#ifndef __GNUC_VA_LIST
+#define __GNUC_VA_LIST
+typedef __builtin_va_list __gnuc_va_list;
+#endif /* __GNUC_VA_LIST */
+
+typedef __gnuc_va_list va_list;
+
+#define va_start(ap, last) __builtin_va_start((ap), last)
+#define va_end(ap) __builtin_va_end((ap))
+#define va_arg(ap, type) __builtin_va_arg((ap), type)
+
+#endif /* !_LIB_STDARG_H_ */
diff --git a/sys/include/lib/string.h b/sys/include/lib/string.h
new file mode 100644
index 0000000..490ae1a
--- /dev/null
+++ b/sys/include/lib/string.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _LIB_STRING_H_
+#define _LIB_STRING_H_
+
+#include <sys/types.h>
+
+size_t strlen(const char *s);
+char *itoa(int64_t value, char *buf, int base);
+void *memmove(void *s1, const void *s2, size_t n);
+void *memcpy(void *dest, const void *src, size_t n);
+void *memcpy32(void *dest, const void *src, size_t n);
+void *memset(void *s, int c, size_t n);
+
+#endif /* !_LIB_STRING_H_ */
diff --git a/sys/include/lib/tty_font.h b/sys/include/lib/tty_font.h
new file mode 100644
index 0000000..7dacf4c
--- /dev/null
+++ b/sys/include/lib/tty_font.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _LIB_TTY_FONT_H_
+#define _LIB_TTY_FONT_H_
+
+#include <sys/types.h>
+
+#define FONT_WIDTH 8
+#define FONT_HEIGHT 16
+
+extern const uint8_t DEFAULT_FONT_DATA[];
+
+#endif /* !_LIB_TTY_FONT_H_ */
diff --git a/sys/include/sys/ascii.h b/sys/include/sys/ascii.h
new file mode 100644
index 0000000..dc4cd86
--- /dev/null
+++ b/sys/include/sys/ascii.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_ASCII_H_
+#define _SYS_ASCII_H_
+
+#define ASCII_NUL 0x00 /* Nul */
+#define ASCII_BEL 0x07 /* Bell */
+#define ASCII_BS 0x08 /* Backspace */
+#define ASCII_HT 0x09 /* Horizontal tab */
+#define ASCII_LF 0x0A /* Line feed */
+#define ASCII_VT 0x0B /* Vertical tab */
+#define ASCII_FF 0x0C /* Form feed */
+#define ASCII_CR 0x0D /* Carriage return */
+#define ASCII_SO 0x0E /* Shift out */
+#define ASCII_SI 0x0F /* Shift in */
+#define ASCII_ESC 0x1B /* Escape */
+
+#endif
diff --git a/sys/include/sys/cdefs.h b/sys/include/sys/cdefs.h
new file mode 100644
index 0000000..b57be39
--- /dev/null
+++ b/sys/include/sys/cdefs.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_CDEFS_H_
+#define _SYS_CDEFS_H_
+
+#if !defined(__ASSEMBLER__)
+
+/* Misc helpers */
+#define __attr(x) __attribute__((x))
+#define __used __attr(used)
+#define __weak __attr(weak)
+#define __used __attr(used)
+
+/* __BIT(n): Set nth bit, where __BIT(0) == 0x1 */
+#define __BIT(n) (1ULL << n)
+
+/* MASK(n): Sets first n bits, where __MASK(2) == 0b11 */
+#define __MASK(n) (__BIT(n) - 1)
+
+/* Max/min helpers */
+#define __MIN(a, b) ((a <= b) ? (a) : (b))
+#define __MAX(a, b) ((a >= b) ? (a) : (b))
+
+/* Aligns up/down a value */
+#define __ALIGN_DOWN(value, align) ((value) & ~((align)-1))
+#define __ALIGN_UP(value, align) (((value) + (align)-1) & ~((align)-1))
+
+/* Rounds up and divides */
+#define __DIV_ROUNDUP(value, div) __extension__ ({ \
+ __auto_type __val = value; \
+ __auto_type __div = div; \
+ (__val + (__div - 1)) / __div; \
+})
+
+/* Find least significant bit that is set */
+#define __LOWEST_SET_BIT(mask) ((((mask) - 1) & (mask)) ^ (mask))
+
+/* Extract value with `mask` from `x` */
+#define __SHIFTOUT(x, mask) (((x) & (mask)) / __LOWEST_SET_BIT(mask))
+
+/* Test if bits are set, where __TEST(0b1111, 0xF) == 1 */
+#define __TEST(a, mask) (__SHIFTOUT(a, mask) != 0)
+
+/* Return the number of elements within an array */
+#define __ARRAY_COUNT(x) (sizeof(x) / sizeof(x[0]))
+
+/* Suppress `variable set but not used' warnings */
+#define __USE(x) ((void)(x))
+
+/* Computes 2^x i.e 2 to the power of 'x' */
+#define __POW2(x) (1ULL << x)
+
+/* Wrapper for inline asm */
+#define __ASMV __asm__ __volatile__
+
+/*
+ * Used to give metadata to
+ * a specific module. Example
+ * metadata string:
+ *
+ * $Vega$: module.c, Programmer Bob, A module that does stuff and things
+ * ~~~~~~ ~~~~~~~~ ~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * Cookie; Module Author of this A short description
+ * always name module
+ * first
+ *
+ * Example usage:
+ *
+ * __KERNEL_META("$Vega$: module.c, Programmer Bob, "
+ * "A module that does stuff and things");
+ *
+ * The above is the preferred style for this
+ * macro.
+ */
+#define __KERNEL_META(meta_str) \
+ __asm__(".section .meta.note\n" \
+ ".align 4\n" \
+ ".string \"" meta_str "\"\n" \
+ ".previous" \
+ )
+
+#define __MODULE_NAME(name) \
+ __used static const char *__THIS_MODULE = name
+
+/* Pack a structure */
+#define __packed __attribute__((__packed__))
+
+/* Align by `n` */
+#define __aligned(n) __attribute__((__aligned__(n)))
+
+/*
+ * Align to a cacheline-boundary which is
+ * typically 64 bytes.
+ *
+ * XXX: Should probably deal with the case of the
+ * cacheline alignment boundary not being 64 bytes.
+ */
+#define __cacheline_aligned __aligned(64)
+
+/*
+ * To be used when an empty body is required like:
+ *
+ * #ifdef DEBUG
+ * #define dprintf(a) printf(a)
+ * #else
+ * #define dprintf(a) __nothing
+ * #endif
+ */
+#define __nothing ((void)0)
+
+#endif /* !defined(__ASSEMBLER__) */
+#endif /* !_SYS_CDEFS_H_ */
diff --git a/sys/include/sys/errno.h b/sys/include/sys/errno.h
new file mode 100644
index 0000000..a6ec5af
--- /dev/null
+++ b/sys/include/sys/errno.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_ERRNO_H_
+#define _SYS_ERRNO_H_
+
+#define EXIT_FAILURE -1
+
+#endif
diff --git a/sys/include/sys/limine.h b/sys/include/sys/limine.h
new file mode 100644
index 0000000..298de81
--- /dev/null
+++ b/sys/include/sys/limine.h
@@ -0,0 +1,497 @@
+/* BSD Zero Clause License */
+
+/* Copyright (C) 2022-2023 mintsuki and contributors.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _LIMINE_H
+#define _LIMINE_H 1
+
+/* $Id$ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+/* Misc */
+
+#ifdef LIMINE_NO_POINTERS
+# define LIMINE_PTR(TYPE) uint64_t
+#else
+# define LIMINE_PTR(TYPE) TYPE
+#endif
+
+#ifdef __GNUC__
+# define LIMINE_DEPRECATED __attribute__((__deprecated__))
+# define LIMINE_DEPRECATED_IGNORE_START \
+ _Pragma("GCC diagnostic push") \
+ _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
+# define LIMINE_DEPRECATED_IGNORE_END \
+ _Pragma("GCC diagnostic pop")
+#else
+# define LIMINE_DEPRECATED
+# define LIMINE_DEPRECATED_IGNORE_START
+# define LIMINE_DEPRECATED_IGNORE_END
+#endif
+
+#define LIMINE_COMMON_MAGIC 0xc7b1dd30df4c8b88, 0x0a82e883a194f07b
+
+struct limine_uuid {
+ uint32_t a;
+ uint16_t b;
+ uint16_t c;
+ uint8_t d[8];
+};
+
+#define LIMINE_MEDIA_TYPE_GENERIC 0
+#define LIMINE_MEDIA_TYPE_OPTICAL 1
+#define LIMINE_MEDIA_TYPE_TFTP 2
+
+struct limine_file {
+ uint64_t revision;
+ LIMINE_PTR(void *) address;
+ uint64_t size;
+ LIMINE_PTR(char *) path;
+ LIMINE_PTR(char *) cmdline;
+ uint32_t media_type;
+ uint32_t unused;
+ uint32_t tftp_ip;
+ uint32_t tftp_port;
+ uint32_t partition_index;
+ uint32_t mbr_disk_id;
+ struct limine_uuid gpt_disk_uuid;
+ struct limine_uuid gpt_part_uuid;
+ struct limine_uuid part_uuid;
+};
+
+/* Boot info */
+
+#define LIMINE_BOOTLOADER_INFO_REQUEST { LIMINE_COMMON_MAGIC, 0xf55038d8e2a1202f, 0x279426fcf5f59740 }
+
+struct limine_bootloader_info_response {
+ uint64_t revision;
+ LIMINE_PTR(char *) name;
+ LIMINE_PTR(char *) version;
+};
+
+struct limine_bootloader_info_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_bootloader_info_response *) response;
+};
+
+/* Stack size */
+
+#define LIMINE_STACK_SIZE_REQUEST { LIMINE_COMMON_MAGIC, 0x224ef0460a8e8926, 0xe1cb0fc25f46ea3d }
+
+struct limine_stack_size_response {
+ uint64_t revision;
+};
+
+struct limine_stack_size_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_stack_size_response *) response;
+ uint64_t stack_size;
+};
+
+/* HHDM */
+
+#define LIMINE_HHDM_REQUEST { LIMINE_COMMON_MAGIC, 0x48dcf1cb8ad2b852, 0x63984e959a98244b }
+
+struct limine_hhdm_response {
+ uint64_t revision;
+ uint64_t offset;
+};
+
+struct limine_hhdm_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_hhdm_response *) response;
+};
+
+/* Framebuffer */
+
+#define LIMINE_FRAMEBUFFER_REQUEST { LIMINE_COMMON_MAGIC, 0x9d5827dcd881dd75, 0xa3148604f6fab11b }
+
+#define LIMINE_FRAMEBUFFER_RGB 1
+
+struct limine_video_mode {
+ uint64_t pitch;
+ uint64_t width;
+ uint64_t height;
+ uint16_t bpp;
+ uint8_t memory_model;
+ uint8_t red_mask_size;
+ uint8_t red_mask_shift;
+ uint8_t green_mask_size;
+ uint8_t green_mask_shift;
+ uint8_t blue_mask_size;
+ uint8_t blue_mask_shift;
+};
+
+struct limine_framebuffer {
+ LIMINE_PTR(void *) address;
+ uint64_t width;
+ uint64_t height;
+ uint64_t pitch;
+ uint16_t bpp;
+ uint8_t memory_model;
+ uint8_t red_mask_size;
+ uint8_t red_mask_shift;
+ uint8_t green_mask_size;
+ uint8_t green_mask_shift;
+ uint8_t blue_mask_size;
+ uint8_t blue_mask_shift;
+ uint8_t unused[7];
+ uint64_t edid_size;
+ LIMINE_PTR(void *) edid;
+ /* Response revision 1 */
+ uint64_t mode_count;
+ LIMINE_PTR(struct limine_video_mode **) modes;
+};
+
+struct limine_framebuffer_response {
+ uint64_t revision;
+ uint64_t framebuffer_count;
+ LIMINE_PTR(struct limine_framebuffer **) framebuffers;
+};
+
+struct limine_framebuffer_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_framebuffer_response *) response;
+};
+
+/* Terminal */
+
+#define LIMINE_TERMINAL_REQUEST { LIMINE_COMMON_MAGIC, 0xc8ac59310c2b0844, 0xa68d0c7265d38878 }
+
+#define LIMINE_TERMINAL_CB_DEC 10
+#define LIMINE_TERMINAL_CB_BELL 20
+#define LIMINE_TERMINAL_CB_PRIVATE_ID 30
+#define LIMINE_TERMINAL_CB_STATUS_REPORT 40
+#define LIMINE_TERMINAL_CB_POS_REPORT 50
+#define LIMINE_TERMINAL_CB_KBD_LEDS 60
+#define LIMINE_TERMINAL_CB_MODE 70
+#define LIMINE_TERMINAL_CB_LINUX 80
+
+#define LIMINE_TERMINAL_CTX_SIZE ((uint64_t)(-1))
+#define LIMINE_TERMINAL_CTX_SAVE ((uint64_t)(-2))
+#define LIMINE_TERMINAL_CTX_RESTORE ((uint64_t)(-3))
+#define LIMINE_TERMINAL_FULL_REFRESH ((uint64_t)(-4))
+
+/* Response revision 1 */
+#define LIMINE_TERMINAL_OOB_OUTPUT_GET ((uint64_t)(-10))
+#define LIMINE_TERMINAL_OOB_OUTPUT_SET ((uint64_t)(-11))
+
+#define LIMINE_TERMINAL_OOB_OUTPUT_OCRNL (1 << 0)
+#define LIMINE_TERMINAL_OOB_OUTPUT_OFDEL (1 << 1)
+#define LIMINE_TERMINAL_OOB_OUTPUT_OFILL (1 << 2)
+#define LIMINE_TERMINAL_OOB_OUTPUT_OLCUC (1 << 3)
+#define LIMINE_TERMINAL_OOB_OUTPUT_ONLCR (1 << 4)
+#define LIMINE_TERMINAL_OOB_OUTPUT_ONLRET (1 << 5)
+#define LIMINE_TERMINAL_OOB_OUTPUT_ONOCR (1 << 6)
+#define LIMINE_TERMINAL_OOB_OUTPUT_OPOST (1 << 7)
+
+LIMINE_DEPRECATED_IGNORE_START
+
+struct LIMINE_DEPRECATED limine_terminal;
+
+typedef void (*limine_terminal_write)(struct limine_terminal *, const char *, uint64_t);
+typedef void (*limine_terminal_callback)(struct limine_terminal *, uint64_t, uint64_t, uint64_t, uint64_t);
+
+struct LIMINE_DEPRECATED limine_terminal {
+ uint64_t columns;
+ uint64_t rows;
+ LIMINE_PTR(struct limine_framebuffer *) framebuffer;
+};
+
+struct LIMINE_DEPRECATED limine_terminal_response {
+ uint64_t revision;
+ uint64_t terminal_count;
+ LIMINE_PTR(struct limine_terminal **) terminals;
+ LIMINE_PTR(limine_terminal_write) write;
+};
+
+struct LIMINE_DEPRECATED limine_terminal_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_terminal_response *) response;
+ LIMINE_PTR(limine_terminal_callback) callback;
+};
+
+LIMINE_DEPRECATED_IGNORE_END
+
+/* 5-level paging */
+
+#define LIMINE_5_LEVEL_PAGING_REQUEST { LIMINE_COMMON_MAGIC, 0x94469551da9b3192, 0xebe5e86db7382888 }
+
+struct limine_5_level_paging_response {
+ uint64_t revision;
+};
+
+struct limine_5_level_paging_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_5_level_paging_response *) response;
+};
+
+/* SMP */
+
+#define LIMINE_SMP_REQUEST { LIMINE_COMMON_MAGIC, 0x95a67b819a1b857e, 0xa0b61b723b6a73e0 }
+
+struct limine_smp_info;
+
+typedef void (*limine_goto_address)(struct limine_smp_info *);
+
+#if defined (__x86_64__) || defined (__i386__)
+
+#define LIMINE_SMP_X2APIC (1 << 0)
+
+struct limine_smp_info {
+ uint32_t processor_id;
+ uint32_t lapic_id;
+ uint64_t reserved;
+ LIMINE_PTR(limine_goto_address) goto_address;
+ uint64_t extra_argument;
+};
+
+struct limine_smp_response {
+ uint64_t revision;
+ uint32_t flags;
+ uint32_t bsp_lapic_id;
+ uint64_t cpu_count;
+ LIMINE_PTR(struct limine_smp_info **) cpus;
+};
+
+#elif defined (__aarch64__)
+
+struct limine_smp_info {
+ uint32_t processor_id;
+ uint32_t gic_iface_no;
+ uint64_t mpidr;
+ uint64_t reserved;
+ LIMINE_PTR(limine_goto_address) goto_address;
+ uint64_t extra_argument;
+};
+
+struct limine_smp_response {
+ uint64_t revision;
+ uint32_t flags;
+ uint64_t bsp_mpidr;
+ uint64_t cpu_count;
+ LIMINE_PTR(struct limine_smp_info **) cpus;
+};
+
+#else
+#error Unknown architecture
+#endif
+
+struct limine_smp_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_smp_response *) response;
+ uint64_t flags;
+};
+
+/* Memory map */
+
+#define LIMINE_MEMMAP_REQUEST { LIMINE_COMMON_MAGIC, 0x67cf3d9d378a806f, 0xe304acdfc50c3c62 }
+
+#define LIMINE_MEMMAP_USABLE 0
+#define LIMINE_MEMMAP_RESERVED 1
+#define LIMINE_MEMMAP_ACPI_RECLAIMABLE 2
+#define LIMINE_MEMMAP_ACPI_NVS 3
+#define LIMINE_MEMMAP_BAD_MEMORY 4
+#define LIMINE_MEMMAP_BOOTLOADER_RECLAIMABLE 5
+#define LIMINE_MEMMAP_KERNEL_AND_MODULES 6
+#define LIMINE_MEMMAP_FRAMEBUFFER 7
+
+struct limine_memmap_entry {
+ uint64_t base;
+ uint64_t length;
+ uint64_t type;
+};
+
+struct limine_memmap_response {
+ uint64_t revision;
+ uint64_t entry_count;
+ LIMINE_PTR(struct limine_memmap_entry **) entries;
+};
+
+struct limine_memmap_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_memmap_response *) response;
+};
+
+/* Entry point */
+
+#define LIMINE_ENTRY_POINT_REQUEST { LIMINE_COMMON_MAGIC, 0x13d86c035a1cd3e1, 0x2b0caa89d8f3026a }
+
+typedef void (*limine_entry_point)(void);
+
+struct limine_entry_point_response {
+ uint64_t revision;
+};
+
+struct limine_entry_point_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_entry_point_response *) response;
+ LIMINE_PTR(limine_entry_point) entry;
+};
+
+/* Kernel File */
+
+#define LIMINE_KERNEL_FILE_REQUEST { LIMINE_COMMON_MAGIC, 0xad97e90e83f1ed67, 0x31eb5d1c5ff23b69 }
+
+struct limine_kernel_file_response {
+ uint64_t revision;
+ LIMINE_PTR(struct limine_file *) kernel_file;
+};
+
+struct limine_kernel_file_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_kernel_file_response *) response;
+};
+
+/* Module */
+
+#define LIMINE_MODULE_REQUEST { LIMINE_COMMON_MAGIC, 0x3e7e279702be32af, 0xca1c4f3bd1280cee }
+
+#define LIMINE_INTERNAL_MODULE_REQUIRED (1 << 0)
+
+struct limine_internal_module {
+ LIMINE_PTR(const char *) path;
+ LIMINE_PTR(const char *) cmdline;
+ uint64_t flags;
+};
+
+struct limine_module_response {
+ uint64_t revision;
+ uint64_t module_count;
+ LIMINE_PTR(struct limine_file **) modules;
+};
+
+struct limine_module_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_module_response *) response;
+
+ /* Request revision 1 */
+ uint64_t internal_module_count;
+ LIMINE_PTR(struct limine_internal_module **) internal_modules;
+};
+
+/* RSDP */
+
+#define LIMINE_RSDP_REQUEST { LIMINE_COMMON_MAGIC, 0xc5e77b6b397e7b43, 0x27637845accdcf3c }
+
+struct limine_rsdp_response {
+ uint64_t revision;
+ LIMINE_PTR(void *) address;
+};
+
+struct limine_rsdp_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_rsdp_response *) response;
+};
+
+/* SMBIOS */
+
+#define LIMINE_SMBIOS_REQUEST { LIMINE_COMMON_MAGIC, 0x9e9046f11e095391, 0xaa4a520fefbde5ee }
+
+struct limine_smbios_response {
+ uint64_t revision;
+ LIMINE_PTR(void *) entry_32;
+ LIMINE_PTR(void *) entry_64;
+};
+
+struct limine_smbios_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_smbios_response *) response;
+};
+
+/* EFI system table */
+
+#define LIMINE_EFI_SYSTEM_TABLE_REQUEST { LIMINE_COMMON_MAGIC, 0x5ceba5163eaaf6d6, 0x0a6981610cf65fcc }
+
+struct limine_efi_system_table_response {
+ uint64_t revision;
+ LIMINE_PTR(void *) address;
+};
+
+struct limine_efi_system_table_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_efi_system_table_response *) response;
+};
+
+/* Boot time */
+
+#define LIMINE_BOOT_TIME_REQUEST { LIMINE_COMMON_MAGIC, 0x502746e184c088aa, 0xfbc5ec83e6327893 }
+
+struct limine_boot_time_response {
+ uint64_t revision;
+ int64_t boot_time;
+};
+
+struct limine_boot_time_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_boot_time_response *) response;
+};
+
+/* Kernel address */
+
+#define LIMINE_KERNEL_ADDRESS_REQUEST { LIMINE_COMMON_MAGIC, 0x71ba76863cc55f63, 0xb2644a48c516a487 }
+
+struct limine_kernel_address_response {
+ uint64_t revision;
+ uint64_t physical_base;
+ uint64_t virtual_base;
+};
+
+struct limine_kernel_address_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_kernel_address_response *) response;
+};
+
+/* Device Tree Blob */
+
+#define LIMINE_DTB_REQUEST { LIMINE_COMMON_MAGIC, 0xb40ddb48fb54bac7, 0x545081493f81ffb7 }
+
+struct limine_dtb_response {
+ uint64_t revision;
+ LIMINE_PTR(void *) dtb_ptr;
+};
+
+struct limine_dtb_request {
+ uint64_t id[4];
+ uint64_t revision;
+ LIMINE_PTR(struct limine_dtb_response *) response;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/sys/include/sys/machdep.h b/sys/include/sys/machdep.h
new file mode 100644
index 0000000..5f2112c
--- /dev/null
+++ b/sys/include/sys/machdep.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_MACHDEP_H_
+#define _SYS_MACHDEP_H_
+
+#include <sys/types.h>
+#if defined(_KERNEL)
+#include <machine/gdt.h>
+#endif /* defined(_KERNEL) */
+
+#if defined(_KERNEL)
+
+struct processor {
+ struct gdtr *gdtr;
+ struct gdt_entry *gdt;
+};
+
+__weak void processor_init(struct processor *processor);
+__weak void interrupts_init(struct processor *processor);
+
+void processor_halt(void);
+
+#endif /* defined(_KERNEL) */
+#endif /* !_SYS_MACHDEP_H_ */
diff --git a/sys/include/sys/panic.h b/sys/include/sys/panic.h
new file mode 100644
index 0000000..8529441
--- /dev/null
+++ b/sys/include/sys/panic.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_PANIC_H_
+#define _SYS_PANIC_H_
+
+#include <stdarg.h>
+
+#if defined(_KERNEL)
+
+void panic(const char *fmt, ...);
+
+#endif
+
+#endif
diff --git a/sys/include/sys/queue.h b/sys/include/sys/queue.h
new file mode 100644
index 0000000..acd0703
--- /dev/null
+++ b/sys/include/sys/queue.h
@@ -0,0 +1,161 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#define _Q_INVALIDATE(a)
+
+/*
+ * Tail queue definitions.
+ */
+#define TAILQ_HEAD(name, type) \
+struct name { \
+ struct type *tqh_first; /* first element */ \
+ struct type **tqh_last; /* addr of last next element */ \
+}
+
+#define TAILQ_HEAD_INITIALIZER(head) \
+ { NULL, &(head).tqh_first }
+
+#define TAILQ_ENTRY(type) \
+struct { \
+ struct type *tqe_next; /* next element */ \
+ struct type **tqe_prev; /* address of previous next element */ \
+}
+
+/*
+ * Tail queue access methods.
+ */
+#define TAILQ_FIRST(head) ((head)->tqh_first)
+#define TAILQ_END(head) NULL
+#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
+#define TAILQ_LAST(head, headname) \
+ (*(((struct headname *)((head)->tqh_last))->tqh_last))
+/* XXX */
+#define TAILQ_PREV(elm, headname, field) \
+ (*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
+#define TAILQ_EMPTY(head) \
+ (TAILQ_FIRST(head) == TAILQ_END(head))
+
+#define TAILQ_FOREACH(var, head, field) \
+ for((var) = TAILQ_FIRST(head); \
+ (var) != TAILQ_END(head); \
+ (var) = TAILQ_NEXT(var, field))
+
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar) \
+ for ((var) = TAILQ_FIRST(head); \
+ (var) != TAILQ_END(head) && \
+ ((tvar) = TAILQ_NEXT(var, field), 1); \
+ (var) = (tvar))
+
+
+#define TAILQ_FOREACH_REVERSE(var, head, headname, field) \
+ for((var) = TAILQ_LAST(head, headname); \
+ (var) != TAILQ_END(head); \
+ (var) = TAILQ_PREV(var, headname, field))
+
+#define TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar) \
+ for ((var) = TAILQ_LAST(head, headname); \
+ (var) != TAILQ_END(head) && \
+ ((tvar) = TAILQ_PREV(var, headname, field), 1); \
+ (var) = (tvar))
+
+/*
+ * Tail queue functions.
+ */
+#define TAILQ_INIT(head) do { \
+ (head)->tqh_first = NULL; \
+ (head)->tqh_last = &(head)->tqh_first; \
+} while (0)
+
+#define TAILQ_INSERT_HEAD(head, elm, field) do { \
+ if (((elm)->field.tqe_next = (head)->tqh_first) != NULL) \
+ (head)->tqh_first->field.tqe_prev = \
+ &(elm)->field.tqe_next; \
+ else \
+ (head)->tqh_last = &(elm)->field.tqe_next; \
+ (head)->tqh_first = (elm); \
+ (elm)->field.tqe_prev = &(head)->tqh_first; \
+} while (0)
+
+#define TAILQ_INSERT_TAIL(head, elm, field) do { \
+ (elm)->field.tqe_next = NULL; \
+ (elm)->field.tqe_prev = (head)->tqh_last; \
+ *(head)->tqh_last = (elm); \
+ (head)->tqh_last = &(elm)->field.tqe_next; \
+} while (0)
+
+#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do { \
+ if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
+ (elm)->field.tqe_next->field.tqe_prev = \
+ &(elm)->field.tqe_next; \
+ else \
+ (head)->tqh_last = &(elm)->field.tqe_next; \
+ (listelm)->field.tqe_next = (elm); \
+ (elm)->field.tqe_prev = &(listelm)->field.tqe_next; \
+} while (0)
+
+#define TAILQ_INSERT_BEFORE(listelm, elm, field) do { \
+ (elm)->field.tqe_prev = (listelm)->field.tqe_prev; \
+ (elm)->field.tqe_next = (listelm); \
+ *(listelm)->field.tqe_prev = (elm); \
+ (listelm)->field.tqe_prev = &(elm)->field.tqe_next; \
+} while (0)
+
+#define TAILQ_REMOVE(head, elm, field) do { \
+ if (((elm)->field.tqe_next) != NULL) \
+ (elm)->field.tqe_next->field.tqe_prev = \
+ (elm)->field.tqe_prev; \
+ else \
+ (head)->tqh_last = (elm)->field.tqe_prev; \
+ *(elm)->field.tqe_prev = (elm)->field.tqe_next; \
+ _Q_INVALIDATE((elm)->field.tqe_prev); \
+ _Q_INVALIDATE((elm)->field.tqe_next); \
+} while (0)
+
+#define TAILQ_REPLACE(head, elm, elm2, field) do { \
+ if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL) \
+ (elm2)->field.tqe_next->field.tqe_prev = \
+ &(elm2)->field.tqe_next; \
+ else \
+ (head)->tqh_last = &(elm2)->field.tqe_next; \
+ (elm2)->field.tqe_prev = (elm)->field.tqe_prev; \
+ *(elm2)->field.tqe_prev = (elm2); \
+ _Q_INVALIDATE((elm)->field.tqe_prev); \
+ _Q_INVALIDATE((elm)->field.tqe_next); \
+} while (0)
+
+#define TAILQ_CONCAT(head1, head2, field) do { \
+ if (!TAILQ_EMPTY(head2)) { \
+ *(head1)->tqh_last = (head2)->tqh_first; \
+ (head2)->tqh_first->field.tqe_prev = (head1)->tqh_last; \
+ (head1)->tqh_last = (head2)->tqh_last; \
+ TAILQ_INIT((head2)); \
+ } \
+} while (0)
diff --git a/sys/include/sys/spinlock.h b/sys/include/sys/spinlock.h
new file mode 100644
index 0000000..8153041
--- /dev/null
+++ b/sys/include/sys/spinlock.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_SPINLOCK_H_
+#define _SYS_SPINLOCK_H_
+
+#include <sys/types.h>
+
+struct spinlock {
+ volatile _Atomic bool lock;
+};
+
+static inline bool
+spinlock_acquire(struct spinlock *lock)
+{
+ return __atomic_test_and_set(&lock->lock, __ATOMIC_ACQUIRE);
+}
+
+static inline void
+spinlock_release(struct spinlock *lock)
+{
+ __atomic_clear(&lock->lock, __ATOMIC_RELEASE);
+}
+
+#endif /* !_SYS_SPINLOCK_H_ */
diff --git a/sys/include/sys/syslog.h b/sys/include/sys/syslog.h
new file mode 100644
index 0000000..bb6c512
--- /dev/null
+++ b/sys/include/sys/syslog.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_SYSLOG_H_
+#define _SYS_SYSLOG_H_
+
+#include <stdarg.h>
+
+#if defined(_KERNEL)
+
+#define KINFO(...) \
+ kprintf("%s[info]: ", __THIS_MODULE); \
+ kprintf(__VA_ARGS__);
+
+#define KDEBUG(...) \
+ kprintf("%s[debug]: ", __THIS_MODULE); \
+ kprintf(__VA_ARGS__);
+
+void syslog_init(void);
+void kprintf(const char *fmt, ...);
+void vkprintf(const char *fmt, va_list *ap);
+
+#endif /* defined(_KERNEL) */
+
+#endif /* !_SYS_SYSLOG_H_ */
diff --git a/sys/include/sys/termios.h b/sys/include/sys/termios.h
new file mode 100644
index 0000000..4cbef9d
--- /dev/null
+++ b/sys/include/sys/termios.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_TERMIOS_H_
+#define _SYS_TERMIOS_H_
+
+#include <sys/types.h>
+
+#define NCCS 20
+
+/*
+ * Output flags - software output processing
+ */
+#define OPOST 0x00000001U /* Enable output processing */
+#if defined(_KERNEL) || defined(_VEGA_SOURCE)
+#define OCRNL 0x00000002U /* Map NL to CR-NL */
+#define ORBUF 0x00000004U /* Buffer bytes */
+#endif /* defined(_KERNEL) || defined(_VEGA_SOURCE) */
+
+typedef uint32_t tcflag_t;
+typedef uint32_t speed_t;
+typedef uint8_t cc_t;
+
+struct termios {
+ tcflag_t c_iflag; /* Input flags */
+ tcflag_t c_oflag; /* Output flags */
+ tcflag_t c_cflag; /* Control flags */
+ tcflag_t c_lflag; /* Local flags */
+ cc_t c_cc[NCCS]; /* Control chars */
+ int c_ispeed; /* Input speed */
+ int c_ospeed; /* Output speed */
+};
+
+#endif /* !_SYS_TERMIOS_H_ */
diff --git a/sys/include/sys/tty.h b/sys/include/sys/tty.h
new file mode 100644
index 0000000..0edbaab
--- /dev/null
+++ b/sys/include/sys/tty.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_TTY_H_
+#define _SYS_TTY_H_
+
+#include <sys/types.h>
+#include <sys/termios.h>
+#include <sys/queue.h>
+#include <sys/cdefs.h>
+#include <sys/spinlock.h>
+#include <dev/video/fbdev.h>
+
+/*
+ * Max chars an entire line can hold:
+ * 2^9 => 512 bytes
+ */
+#define LINE_RING_SIZE __POW2(9)
+
+/* Default TTY tab width */
+#define DEFAULT_TAB_WIDTH 4
+
+/*
+ * Describes the size
+ * of a TTY window.
+ */
+struct winsize {
+ uint16_t ws_row; /* Rows, in chars */
+ uint16_t ws_col; /* Columns, in chars */
+ uint16_t ws_xpixel; /* Horizontal size, in pixels */
+ uint16_t ws_ypixel; /* Vertical size, in pixels */
+};
+
+/*
+ * TTY ring buffer.
+ */
+struct tty_ring {
+ char buf[LINE_RING_SIZE]; /* Actual buffer */
+ size_t len;
+};
+
+/*
+ * Describes a TTY. Each TTY
+ * shall be described by a
+ * `struct tty`.
+ */
+struct tty {
+ uint32_t chpos_x; /* Next char X position */
+ uint32_t chpos_y; /* Next char Y position */
+ uint32_t curspos_x; /* Cursor X position */
+ uint32_t curspos_y; /* Cursor Y position */
+ uint32_t fg; /* Foreground (hex color) */
+ uint32_t bg; /* Background (hex color) */
+ uint8_t tab_width; /* Width of a tab (in chars) */
+ struct fbdev fbdev; /* Framebuffer device */
+ struct termios termios; /* Termios state */
+ struct winsize winsize; /* Window size */
+ struct tty_ring ring; /* Ring buffer */
+ struct spinlock lock; /* Protects TTY */
+ TAILQ_ENTRY(tty) link; /* TTY list link */
+};
+
+/*
+ * Some helper macros to facilitate
+ * locking/unlocking a TTY.
+ */
+#define TTY_LOCK(tty_ptr) spinlock_acquire(&(tty_ptr)->lock)
+#define TTY_UNLOCK(tty_ptr) spinlock_release(&(tty_ptr)->lock)
+
+/*
+ * Macros to allow easy access for
+ * termios and winsize flags, e.g usage:
+ *
+ * struct tty *tty = ...
+ * tty->t_cflag = ...
+ */
+#define t_cflag termios.c_cflag
+#define t_iflag termios.c_iflag
+#define t_lflag termios.c_lflag
+#define t_oflag termios.c_oflag
+#define t_ispeed termios.c_ispeed
+#define t_ospeed termios.c_ospeed
+#define t_ws_row winsize.ws_row
+#define t_ws_col winsize.ws_col
+#define t_ws_xpixel winsize.ws_xpixel
+#define t_ws_ypixel winsize.ws_ypixel
+
+void tty_push_char(struct tty *tty, int c);
+void tty_flush(struct tty *tty);
+ssize_t tty_write(struct tty *tty, const char *buf, size_t len);
+void tty_set_defaults(struct tty *tty);
+void tty_attach(struct tty *tty);
+void tty_init(void);
+
+#endif /* !_SYS_TTY_H_ */
diff --git a/sys/include/sys/types.h b/sys/include/sys/types.h
new file mode 100644
index 0000000..8fc285a
--- /dev/null
+++ b/sys/include/sys/types.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_TYPES_H_
+#define _SYS_TYPES_H_
+
+#define NULL ((void *)0)
+#define true 1
+#define false 0
+
+typedef signed char int8_t;
+typedef unsigned char uint8_t;
+typedef short int16_t;
+typedef unsigned short uint16_t;
+typedef int int32_t;
+typedef unsigned int uint32_t;
+#if __SIZEOF_LONG__ == 8
+typedef long int64_t;
+typedef unsigned long uint64_t;
+#elif __SIZEOF_LONG__ == 4
+__extension__
+typedef long long int64_t;
+__extension__
+typedef unsigned long long uint64_t;
+#else
+#error "Unsupported long size"
+#endif
+
+#if __SIZEOF_SIZE_T__ == 8
+typedef uint64_t size_t;
+typedef int64_t ssize_t; /* Byte count or error */
+#elif __SIZEOF_SIZE_T__ == 4
+typedef uint32_t size_t;
+typedef int32_t ssize_t; /* Byte count or error */
+#else
+#error "Unsupported size_t size"
+#endif
+
+typedef _Bool bool;
+typedef ssize_t off_t;
+typedef size_t uintptr_t;
+
+#endif /* !_SYS_TYPES_H_ */
diff --git a/sys/include/vm/vm.h b/sys/include/vm/vm.h
new file mode 100644
index 0000000..35775cc
--- /dev/null
+++ b/sys/include/vm/vm.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _SYS_VM_VM_H_
+#define _SYS_VM_VM_H_
+
+#include <sys/types.h>
+#include <sys/limine.h>
+
+extern volatile struct limine_hhdm_request g_hhdm_request;
+
+#define VM_HIGHER_HALF (g_hhdm_request.response->offset)
+
+#define PHYS_TO_VIRT(phys) (void *)(phys + VM_HIGHER_HALF)
+#define VIRT_TO_PHYS(virt) ((uintptr_t)virt - VM_HIGHER_HALF)
+
+#endif /* !_SYS_VM_VM_H_ */
diff --git a/sys/include/vm/vm_physseg.h b/sys/include/vm/vm_physseg.h
new file mode 100644
index 0000000..ed815ec
--- /dev/null
+++ b/sys/include/vm/vm_physseg.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#ifndef _VM_VM_PHYSSEG_H_
+#define _VM_VM_PHYSSEG_H_
+
+void vm_physseg_init(void);
+
+#endif /* !_VM_VM_PHYSSEG_H_ */
diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
new file mode 100644
index 0000000..2ae2a09
--- /dev/null
+++ b/sys/kern/init_main.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/cdefs.h>
+#include <sys/tty.h>
+#include <sys/syslog.h>
+#include <sys/machdep.h>
+#include <vm/vm_physseg.h>
+#include <logo.h>
+
+__KERNEL_META("$Vega$: init_main.c, Ian Marco Moffett, "
+ "Where the Vega kernel first starts up");
+
+static struct processor bsp = {
+ .gdtr = &g_early_gdtr,
+ .gdt = &g_dmmy_gdt[0]
+};
+
+void
+main(void)
+{
+ tty_init();
+ syslog_init();
+ PRINT_LOGO();
+
+ processor_init(&bsp);
+ vm_physseg_init();
+
+ /* We're done here, halt the processor */
+ __ASMV("cli; hlt");
+}
diff --git a/sys/kern/kern_panic.c b/sys/kern/kern_panic.c
new file mode 100644
index 0000000..69680f7
--- /dev/null
+++ b/sys/kern/kern_panic.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/panic.h>
+#include <sys/syslog.h>
+#include <sys/machdep.h>
+
+/*
+ * Tells the user something terribly
+ * wrong happened then halting the system
+ * as soon as possible.
+ *
+ * XXX: There is no need to cleanup stuff here (e.g `va_list ap`)
+ * as we won't be returning from here anyways and the source
+ * of the panic could be *anywhere* so it's best not to mess with
+ * things.
+ */
+void
+panic(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+
+ kprintf("panic: ");
+ vkprintf(fmt, &ap);
+
+ processor_halt();
+ __builtin_unreachable();
+}
diff --git a/sys/kern/kern_syslog.c b/sys/kern/kern_syslog.c
new file mode 100644
index 0000000..cd7f8f0
--- /dev/null
+++ b/sys/kern/kern_syslog.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/syslog.h>
+#include <sys/tty.h>
+#include <string.h>
+
+static struct tty syslog_tty;
+
+static void
+syslog_handle_fmt(va_list *ap, char fmt_spec)
+{
+ char tmp_ch;
+ int64_t tmp_int;
+ const char *tmp_str;
+ char tmp_buf[256] = { 0 };
+
+ switch (fmt_spec) {
+ case 'c':
+ tmp_ch = va_arg(*ap, int);
+ tty_write(&syslog_tty, &tmp_ch, 1);
+ break;
+ case 's':
+ tmp_str = va_arg(*ap, const char *);
+ tty_write(&syslog_tty, tmp_str, strlen(tmp_str));
+ break;
+ case 'd':
+ tmp_int = va_arg(*ap, int64_t);
+ itoa(tmp_int, tmp_buf, 10);
+ tty_write(&syslog_tty, tmp_buf, strlen(tmp_buf));
+ break;
+ case 'x':
+ tmp_int = va_arg(*ap, uint64_t);
+ itoa(tmp_int, tmp_buf, 16);
+ tty_write(&syslog_tty, tmp_buf + 2, strlen(tmp_buf) - 2);
+ break;
+ }
+}
+
+void
+vkprintf(const char *fmt, va_list *ap)
+{
+ while (*fmt) {
+ if (*fmt == '%') {
+ ++fmt;
+ syslog_handle_fmt(ap, *fmt++);
+ } else {
+ tty_write(&syslog_tty, fmt++, 1);
+ }
+ }
+}
+
+void
+kprintf(const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vkprintf(fmt, &ap);
+ va_end(ap);
+}
+
+void
+syslog_init(void)
+{
+ tty_set_defaults(&syslog_tty);
+ tty_attach(&syslog_tty);
+}
diff --git a/sys/kern/tty.c b/sys/kern/tty.c
new file mode 100644
index 0000000..f166302
--- /dev/null
+++ b/sys/kern/tty.c
@@ -0,0 +1,387 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/tty.h>
+#include <sys/cdefs.h>
+#include <sys/errno.h>
+#include <sys/ascii.h>
+#include <string.h>
+#include <tty_font.h>
+
+/*
+ * Default cursor color.
+ *
+ * TODO: The cursor color should
+ * be the invert of the color
+ * of whatever it is on top of.
+ */
+#define DEFAULT_CURSOR_BG 0x808080
+
+#define CURSOR_WIDTH FONT_WIDTH
+#define CURSOR_HEIGHT FONT_HEIGHT
+
+__KERNEL_META("$Vega$: tty.c, Ian Marco Moffett, "
+ "Core TTY implementation");
+
+/* List of attached TTYs */
+static TAILQ_HEAD(, tty) tty_list;
+
+/*
+ * Renders a char onto the
+ * TTY specified by `tty`.
+ */
+static void
+tty_draw_char(struct tty *tty, char c, uint32_t fg, uint32_t bg)
+{
+ uint32_t *fb_ptr;
+ uint32_t x, y;
+ size_t idx;
+ const uint8_t *glyph;
+
+ /* Get a pointer to framebuffer memory */
+ fb_ptr = tty->fbdev.mem;
+
+ /* Get the specific glyph of `c` */
+ glyph = &DEFAULT_FONT_DATA[(int)c*16];
+
+ x = tty->chpos_x;
+ y = tty->chpos_y;
+
+ for (uint32_t cy = 0; cy < FONT_HEIGHT; ++cy) {
+ for (uint32_t cx = 0; cx < FONT_WIDTH; ++cx) {
+ idx = fbdev_get_index(&tty->fbdev, x+FONT_WIDTH-cx, y+cy);
+ fb_ptr[idx] = __TEST(glyph[cy], __BIT(cx)) ? fg : bg;
+ }
+ }
+}
+
+/*
+ * Draws a cursor onto
+ * the screen.
+ *
+ * Call with TTY locked.
+ */
+static void
+tty_draw_cursor(struct tty *tty, bool hide)
+{
+ uint32_t x, y, idx;
+ uint32_t *fb_ptr;
+ uint32_t color;
+
+ fb_ptr = tty->fbdev.mem;
+ color = hide ? tty->bg : DEFAULT_CURSOR_BG;
+
+ for (size_t cy = 0; cy < CURSOR_HEIGHT; ++cy) {
+ for (size_t cx = 0; cx < CURSOR_WIDTH; ++cx) {
+ x = tty->curspos_x + cx;
+ y = tty->curspos_y + cy;
+ idx = fbdev_get_index(&tty->fbdev, x, y);
+ fb_ptr[idx] = color;
+ }
+ }
+}
+
+static void
+tty_scroll_single(struct tty *tty)
+{
+ uint32_t *fb_ptr;
+ size_t line_size, dest_idx, src_idx;
+
+ fb_ptr = tty->fbdev.mem;
+ line_size = tty->fbdev.pitch/4;
+
+ /* Copy each line up */
+ for (size_t y = FONT_HEIGHT; y < tty->t_ws_ypixel; y += FONT_HEIGHT) {
+ dest_idx = fbdev_get_index(&tty->fbdev, 0, y - FONT_HEIGHT);
+ src_idx = fbdev_get_index(&tty->fbdev, 0, y);
+ memcpy32(&fb_ptr[dest_idx], &fb_ptr[src_idx], FONT_HEIGHT*line_size);
+ }
+
+ /*
+ * Ensure we start at X position 0
+ * after we scrolled down.
+ */
+ tty->chpos_x = 0;
+ tty->curspos_x = 0;
+}
+
+/*
+ * Handles a newline.
+ *
+ * Call with TTY locked.
+ */
+static inline void
+tty_newline(struct tty *tty)
+{
+ uint32_t ypos;
+ const uint32_t MAX_YPOS = tty->t_ws_ypixel - (CURSOR_HEIGHT*2);
+
+ /* Hide the cursor */
+ tty_draw_cursor(tty, true);
+
+ /* Reset X positions */
+ tty->chpos_x = 0;
+ tty->curspos_x = 0;
+
+ /*
+ * Get the value closest to end
+ * of the screen.
+ */
+ ypos = __MAX(tty->chpos_y, tty->curspos_y);
+
+ /*
+ * Check if we need to scroll
+ * instead of incrementing
+ * Y positions.
+ */
+ if (ypos < MAX_YPOS) {
+ tty->chpos_y += FONT_HEIGHT;
+ tty->curspos_y += FONT_HEIGHT;
+ } else {
+ tty_scroll_single(tty);
+ }
+
+ /* Redraw the cursor */
+ tty_draw_cursor(tty, false);
+}
+
+/*
+ * Appends a character to the TTY specified
+ * by `tty` as well as incrementing tty->chpos_x
+ * and making newlines as needed.
+ *
+ * Call with TTY locked.
+ */
+static inline void
+tty_append_char(struct tty *tty, int c)
+{
+ const uint32_t MAX_XPOS = tty->t_ws_xpixel - FONT_WIDTH;
+
+ /* Hide the cursor */
+ tty_draw_cursor(tty, true);
+
+ tty_draw_char(tty, c, tty->fg, tty->bg);
+ tty->chpos_x += FONT_WIDTH;
+ tty->curspos_x += FONT_WIDTH;
+
+ if (tty->chpos_x >= MAX_XPOS) {
+ tty_newline(tty);
+ }
+
+ /* Redraw the cursor */
+ tty_draw_cursor(tty, false);
+}
+
+/*
+ * Writes out a tab as `tty->tab_width`
+ * spaces.
+ *
+ * Call with TTY locked.
+ */
+static void
+tty_expand_tab(struct tty *tty)
+{
+ for (size_t i = 0; i < tty->tab_width; ++i) {
+ tty_append_char(tty, ' ');
+ }
+}
+
+/*
+ * Writes a char to the TTY.
+ *
+ * Returns 0 on success; non-zero value
+ * is a character to be resent.
+ *
+ * Call with TTY locked.
+ */
+static int
+tty_putch(struct tty *tty, int c)
+{
+ if (!__TEST(tty->t_oflag, OPOST)) {
+ /*
+ * Just write out the char with
+ * no processing.
+ */
+ tty_append_char(tty, c);
+ return 0;
+ }
+
+ switch (c) {
+ case ASCII_HT:
+ /* Tab */
+ tty_expand_tab(tty);
+ break;
+ case ASCII_LF:
+ /* Line feed ('\n') */
+ tty_newline(tty);
+ break;
+ default:
+ tty_append_char(tty, c);
+ break;
+ }
+
+ return 0;
+}
+
+/*
+ * Flushes a TTY specified
+ * by `tty`.
+ *
+ * Call with TTY locked.
+ */
+void
+tty_flush(struct tty *tty)
+{
+ struct tty_ring *ring;
+
+ ring = &tty->ring;
+
+ /*
+ * Write each byte from the buffer
+ * to the screen with output processing
+ * if possible.
+ *
+ * XXX: Perhaps there could be a faster
+ * way of doing this instead of
+ * byte by byte?
+ */
+ for (size_t i = 0; i < ring->len; ++i) {
+ tty_putch(tty, ring->buf[i]);
+ }
+
+ ring->len = 0;
+}
+
+/*
+ * Writes to a TTY specified by `tty`.
+ *
+ * @buf: Buffer to write.
+ * @len: Length of buffer.
+ *
+ * Returns number of bytes written, and
+ * EXIT_FAILURE on error.
+ */
+ssize_t
+tty_write(struct tty *tty, const char *buf, size_t len)
+{
+ if (len == 0) {
+ /* Bad value, don't even try */
+ return EXIT_FAILURE;
+ }
+
+ TTY_LOCK(tty);
+ for (size_t i = 0; i < len; ++i) {
+ tty_push_char(tty, buf[i]);
+ /*
+ * If we have a newline and we are
+ * buffering bytes, flush the ring.
+ */
+ if (buf[i] == '\n' && __TEST(tty->t_oflag, ORBUF)) {
+ tty_flush(tty);
+ }
+ }
+
+ /*
+ * If we aren't buffering bytes, don't
+ * keep the bytes within the ring and
+ * flush it right away per `tty_write()`
+ * call.
+ */
+ if (!__TEST(tty->t_oflag, ORBUF)) {
+ tty_flush(tty);
+ }
+
+ TTY_UNLOCK(tty);
+ return len;
+}
+
+/*
+ * Sets TTY fields to their defaults.
+ */
+void
+tty_set_defaults(struct tty *tty)
+{
+ /* Ensure everything is initially zero */
+ memset(tty, 0, sizeof(*tty));
+
+ /*
+ * Now, initialize everything to their defaults.
+ *
+ * Some notes about the default framebuffer device:
+ * ------------------------------------------------
+ * The default framebuffer device should be the
+ * front buffer. Later on during boot, all attached
+ * TTYs shall have their fbdev swapped out with a
+ * backbuffer to improve performace as reading directly
+ * from video memory is going to be slow.
+ *
+ * XXX: At some point we should be allocating a backbuffer
+ * instead when it's time for *all* TTYs to have them.
+ *
+ * A good idea would be to only allocate a backbuffer
+ * *if* we switched to some TTY and deallocate
+ * that backbuffer when switching away from that TTY.
+ *
+ * The first thing that comes to mind when thinking
+ * about this idea is loosing our text when we switch
+ * back out. To rectify this, we could buffer chars
+ * which would take less memory than keeping the whole
+ * backbuffer (holds pixels i.e uint32_t).
+ *
+ * This can perhaps be done by some internal flag which
+ * indicates that kmalloc() is usable and chars can
+ * be buffered. Once we switch back, just allocate
+ * a new backbuffer and copy the chars back.
+ */
+ tty->fbdev = fbdev_get_front();
+ tty->t_oflag = (OPOST | ORBUF);
+ tty->tab_width = DEFAULT_TAB_WIDTH;
+ tty->fg = 0x808080;
+ tty->bg = 0x000000;
+ tty->t_ws_xpixel = tty->fbdev.width;
+ tty->t_ws_ypixel = tty->fbdev.height;
+ tty->t_ws_row = tty->fbdev.height / FONT_HEIGHT;
+ tty->t_ws_col = tty->fbdev.width / FONT_WIDTH;
+
+}
+
+void
+tty_attach(struct tty *tty)
+{
+ TAILQ_INSERT_TAIL(&tty_list, tty, link);
+ tty_draw_cursor(tty, false);
+}
+
+void
+tty_init(void)
+{
+ TAILQ_INIT(&tty_list); /* Ensure the TTY list is usable */
+}
diff --git a/sys/kern/tty_subr.c b/sys/kern/tty_subr.c
new file mode 100644
index 0000000..4c8405e
--- /dev/null
+++ b/sys/kern/tty_subr.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/tty.h>
+
+/*
+ * Pushes a char to the TTY
+ * ring buffer.
+ *
+ * Call with TTY locked.
+ */
+void
+tty_push_char(struct tty *tty, int c)
+{
+ struct tty_ring *ring;
+
+ ring = &tty->ring;
+
+ /*
+ * If our ring is full, it should
+ * be flushed as soon as possible.
+ *
+ * XXX: ring->len will be reset by tty_flush()
+ * so there is no need to do it here.
+ */
+ if (ring->len >= LINE_RING_SIZE) {
+ tty_flush(tty);
+ }
+
+ ring->buf[ring->len++] = c;
+}
diff --git a/sys/lib/logo.c b/sys/lib/logo.c
new file mode 100644
index 0000000..bd72d4e
--- /dev/null
+++ b/sys/lib/logo.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <lib/logo.h>
+
+/*
+ * Ascii art logo.
+ */
+
+uint8_t g_logo[] = {
+ 0x0A, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x0A, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x38,
+ 0x38, 0x62, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x2C,
+ 0x38, 0x27, 0x20, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38,
+ 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x2C, 0x6F, 0x38, 0x38, 0x38, 0x38,
+ 0x38, 0x38, 0x6F, 0x2E, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x2E, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x0A,
+ 0x20, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x38, 0x38, 0x62, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x2C, 0x38, 0x27, 0x20, 0x20, 0x38, 0x20, 0x38, 0x38, 0x38,
+ 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38,
+ 0x38, 0x38, 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x60, 0x38, 0x38, 0x2E, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x2E, 0x38, 0x38, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x0A, 0x20, 0x20, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x38,
+ 0x38, 0x62, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x2C, 0x38, 0x27, 0x20, 0x20,
+ 0x20, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x2C, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x60, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x20, 0x20, 0x3A, 0x38, 0x38, 0x38,
+ 0x38, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x0A, 0x20, 0x20,
+ 0x20, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x38, 0x38, 0x62, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x2C, 0x38, 0x27, 0x20, 0x20, 0x20, 0x20, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38, 0x38, 0x20, 0x38, 0x38, 0x38,
+ 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x2E, 0x20, 0x60, 0x38, 0x38, 0x38, 0x38, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x38,
+ 0x38, 0x62, 0x20, 0x20, 0x20, 0x2C, 0x38, 0x27, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38,
+ 0x20, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x20,
+ 0x38, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x2E, 0x38, 0x2E, 0x20, 0x60, 0x38, 0x38, 0x38,
+ 0x38, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x0A, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x38, 0x38, 0x62, 0x20, 0x2C, 0x38, 0x27, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x2E, 0x38, 0x60,
+ 0x38, 0x2E, 0x20, 0x60, 0x38, 0x38, 0x38, 0x38, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x38,
+ 0x38, 0x62, 0x38, 0x27, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38, 0x20, 0x38,
+ 0x38, 0x38, 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38, 0x38,
+ 0x20, 0x38, 0x38, 0x38, 0x38, 0x20, 0x20, 0x20, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38,
+ 0x38, 0x20, 0x2E, 0x38, 0x27, 0x20, 0x60, 0x38, 0x2E, 0x20, 0x60, 0x38, 0x38, 0x38,
+ 0x38, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x20, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x38, 0x38, 0x27, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x60, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x20, 0x20, 0x20,
+ 0x20, 0x20, 0x20, 0x20, 0x2E, 0x38, 0x27, 0x2E, 0x38, 0x27, 0x20, 0x20, 0x20, 0x60,
+ 0x38, 0x2E, 0x20, 0x60, 0x38, 0x38, 0x38, 0x38, 0x38, 0x2E, 0x20, 0x20, 0x20, 0x0A,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x60, 0x38, 0x2E, 0x60, 0x38, 0x27,
+ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38, 0x20, 0x38, 0x38, 0x38,
+ 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x38,
+ 0x38, 0x38, 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x2C, 0x38, 0x38, 0x27, 0x2E, 0x38,
+ 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x2E, 0x20, 0x60, 0x38, 0x38, 0x38,
+ 0x38, 0x38, 0x2E, 0x20, 0x20, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x60, 0x38, 0x2E, 0x60, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+ 0x20, 0x38, 0x20, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38,
+ 0x38, 0x20, 0x20, 0x20, 0x20, 0x20, 0x60, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38, 0x38,
+ 0x50, 0x27, 0x20, 0x2E, 0x38, 0x27, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x60,
+ 0x38, 0x2E, 0x20, 0x60, 0x38, 0x38, 0x38, 0x38, 0x38, 0x2E, 0x20, 0x00
+};
diff --git a/sys/lib/string/itoa.c b/sys/lib/string/itoa.c
new file mode 100644
index 0000000..c344161
--- /dev/null
+++ b/sys/lib/string/itoa.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <string.h>
+
+static char *itoa_base10_convert(int64_t value, char *buf);
+
+static char *
+itoa_base10_convert(int64_t value, char *buf)
+{
+ size_t i;
+ uint8_t tmp;
+ bool is_negative;
+
+ i = 0;
+ is_negative = false;
+
+ if (value == 0) {
+ buf[i++] = '0';
+ buf[i++] = '\0';
+ }
+
+ if (value < 0) {
+ /* Easier to handle positive numbers */
+ value *= -1;
+ is_negative = true;
+ }
+
+ while (value > 0) {
+ buf[i++] = '0' + (value % 10);
+ value /= 10;
+ }
+
+ if (is_negative) {
+ buf[i++] = '-';
+ }
+
+ buf[i--] = '\0';
+
+ /* Result is in reverse */
+ for (int j = 0; j < i; ++j, --i) {
+ tmp = buf[j];
+ buf[j] = buf[i];
+ buf[i] = tmp;
+ }
+
+ return buf;
+}
+
+static char *
+itoa_convert_base16(uint64_t n, char *buffer)
+{
+ bool pad;
+ uint8_t nibble;
+ uint8_t i, j, tmp;
+ const char *ascii_nums = "0123456789ABCDEF";
+
+ i = 0;
+ pad = false;
+
+ if (n == 0) {
+ /* Zero, no need to parse */
+ memcpy(buffer, "0x00\0", 5);
+ return buffer;
+ }
+ /* If one digit, pad out 2 later */
+ if (n < 0x10) {
+ pad = true;
+ }
+
+ while (n > 0) {
+ nibble = (uint8_t)n & 0x0F;
+ nibble = ascii_nums[nibble];
+ buffer[i++] = nibble;
+ n >>= 4; /* Fetch next nibble */
+ }
+
+ if (pad) {
+ buffer[i++] = '0';
+ }
+
+ /* Add "0x" prefix */
+ buffer[i++] = 'x';
+ buffer[i++] = '0';
+ buffer[i--] = '\0';
+
+ /* Unreverse the result */
+ for (j = 0; j < i; ++j, --i) {
+ tmp = buffer[j];
+ buffer[j] = buffer[i];
+ buffer[i] = tmp;
+ }
+ return buffer;
+}
+
+char *
+itoa(int64_t value, char *buf, int base)
+{
+ switch (base) {
+ case 10:
+ return itoa_base10_convert(value, buf);
+ case 16:
+ return itoa_convert_base16(value, buf);
+ default:
+ return NULL;
+ }
+}
diff --git a/sys/lib/string/memcpy.c b/sys/lib/string/memcpy.c
new file mode 100644
index 0000000..a71efc7
--- /dev/null
+++ b/sys/lib/string/memcpy.c
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <string.h>
+
+void *
+memcpy(void *dest, const void *src, size_t n)
+{
+ for (size_t i = 0; i < n; ++i) {
+ ((char *)dest)[i] = ((char *)src)[i];
+ }
+
+ return dest;
+}
+
+void *
+memcpy32(void *dest, const void *src, size_t n)
+{
+ for (size_t i = 0; i < n; ++i) {
+ ((uint32_t *)dest)[i] = ((uint32_t *)src)[i];
+ }
+
+ return dest;
+}
diff --git a/sys/lib/string/memmove.c b/sys/lib/string/memmove.c
new file mode 100644
index 0000000..55991ed
--- /dev/null
+++ b/sys/lib/string/memmove.c
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <string.h>
+
+void *
+memmove(void *s1, const void *s2, size_t n)
+{
+ const char *f = s2;
+ char *t = s1;
+
+ if (f < t) {
+ f += n;
+ t += n;
+ while (n-- > 0)
+ *--t = *--f;
+ } else {
+ while (n-- > 0)
+ *t++ = *f++;
+ }
+
+ return s1;
+}
diff --git a/sys/lib/string/memset.c b/sys/lib/string/memset.c
new file mode 100644
index 0000000..98de192
--- /dev/null
+++ b/sys/lib/string/memset.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <string.h>
+
+void *
+memset(void *s, int c, size_t n)
+{
+ for (size_t i = 0; i < n; ++i) {
+ ((char *)s)[i] = c;
+ }
+
+ return s;
+}
diff --git a/sys/lib/string/strlen.c b/sys/lib/string/strlen.c
new file mode 100644
index 0000000..e27c7be
--- /dev/null
+++ b/sys/lib/string/strlen.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <string.h>
+
+size_t
+strlen(const char *s)
+{
+ size_t len;
+
+ len = 0;
+ while (s[len++]);
+ return len - 1;
+}
diff --git a/sys/lib/tty_font.c b/sys/lib/tty_font.c
new file mode 100644
index 0000000..5d2f516
--- /dev/null
+++ b/sys/lib/tty_font.c
@@ -0,0 +1,378 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <lib/tty_font.h>
+
+
+const uint8_t DEFAULT_FONT_DATA[] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x42, 0x81, 0x81, 0xa5, 0xa5, 0x81,
+ 0x81, 0xa5, 0x99, 0x81, 0x42, 0x3c, 0x00, 0x00, 0x00, 0x3c, 0x7e, 0xff,
+ 0xff, 0xdb, 0xdb, 0xff, 0xff, 0xdb, 0xe7, 0xff, 0x7e, 0x3c, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x6c, 0xfe, 0xfe, 0xfe, 0x7c, 0x7c, 0x38, 0x38, 0x10,
+ 0x10, 0x00, 0x00, 0x00, 0x00, 0x10, 0x10, 0x38, 0x38, 0x7c, 0x7c, 0xfe,
+ 0x7c, 0x7c, 0x38, 0x38, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18,
+ 0x3c, 0x3c, 0xdb, 0xff, 0xff, 0xdb, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x18, 0x3c, 0x7e, 0xff, 0xff, 0xff, 0x66, 0x18, 0x18,
+ 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x78,
+ 0x78, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xe7, 0xc3, 0xc3, 0xe7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0xcc, 0x84, 0x84, 0xcc, 0x78, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc3, 0x99, 0xbd,
+ 0xbd, 0x99, 0xc3, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x1e,
+ 0x0e, 0x1e, 0x32, 0x78, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0x78, 0x30, 0xfc, 0x30, 0x30,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x18, 0x1c, 0x1e, 0x16, 0x12,
+ 0x10, 0x10, 0x70, 0xf0, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x30, 0x38, 0x2c,
+ 0x26, 0x32, 0x3a, 0x2e, 0x26, 0x22, 0x62, 0xe2, 0xc6, 0x0e, 0x0c, 0x00,
+ 0x00, 0x00, 0x00, 0x18, 0x18, 0xdb, 0x3c, 0xe7, 0x3c, 0xdb, 0x18, 0x18,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc0, 0xe0, 0xf8, 0xfe,
+ 0xf8, 0xe0, 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
+ 0x06, 0x0e, 0x3e, 0xfe, 0x3e, 0x0e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x30, 0x78, 0xfc, 0x30, 0x30, 0x30, 0x30, 0x30, 0xfc, 0x78,
+ 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
+ 0xcc, 0xcc, 0x00, 0xcc, 0xcc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xdb,
+ 0xdb, 0xdb, 0xdb, 0x7b, 0x1b, 0x1b, 0x1b, 0x1b, 0x1b, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0x60, 0x38, 0x6c, 0xc6, 0xc6, 0x6c, 0x38, 0x0c,
+ 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0xfe, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x78,
+ 0xfc, 0x30, 0x30, 0x30, 0x30, 0x30, 0xfc, 0x78, 0x30, 0xfc, 0x00, 0x00,
+ 0x00, 0x00, 0x30, 0x78, 0xfc, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0xfc, 0x78, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x18, 0x0c, 0xfe, 0xfe, 0x0c, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x60, 0xfe, 0xfe, 0x60, 0x30, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0,
+ 0xc0, 0xc0, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x24, 0x66, 0xff, 0xff, 0x66, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x10, 0x10, 0x38, 0x38, 0x7c, 0x7c, 0xfe, 0xfe,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xfe, 0x7c, 0x7c,
+ 0x38, 0x38, 0x10, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x30, 0x78, 0x78, 0x78, 0x78, 0x30, 0x30, 0x30, 0x00, 0x30,
+ 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c, 0x6c,
+ 0x6c, 0xfe, 0x6c, 0x6c, 0x6c, 0xfe, 0x6c, 0x6c, 0x6c, 0x00, 0x00, 0x00,
+ 0x00, 0x18, 0x18, 0x7c, 0xc6, 0xc0, 0xc0, 0x7c, 0x06, 0x06, 0xc6, 0x7c,
+ 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0x0c, 0x0c, 0x18, 0x38,
+ 0x30, 0x60, 0x60, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c,
+ 0x6c, 0x38, 0x30, 0x76, 0xde, 0xcc, 0xcc, 0xde, 0x76, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x18, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x30, 0x60, 0x60, 0x60, 0x60,
+ 0x60, 0x60, 0x60, 0x30, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x30,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x30, 0x60, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c, 0x38, 0xfe, 0x38, 0x6c, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7e,
+ 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x30, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x06,
+ 0x0c, 0x0c, 0x18, 0x38, 0x30, 0x60, 0x60, 0xc0, 0xc0, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xd6, 0xd6, 0xd6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x38, 0x78, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
+ 0x06, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0xc0, 0xfe, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0x06, 0x06, 0x3c, 0x06, 0x06, 0x06, 0x06, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x0c, 0x1c, 0x3c, 0x6c, 0xcc,
+ 0xfe, 0x0c, 0x0c, 0x0c, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc0,
+ 0xc0, 0xc0, 0xfc, 0x06, 0x06, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x3c, 0x60, 0xc0, 0xc0, 0xfc, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc6, 0x06, 0x06, 0x0c, 0x18,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
+ 0xc6, 0xc6, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0x7e, 0x06, 0x06, 0x06, 0x0c,
+ 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18,
+ 0x18, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x18, 0x18, 0x30, 0x00, 0x00,
+ 0x00, 0x00, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x60, 0x30, 0x18, 0x0c,
+ 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00,
+ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x60,
+ 0x30, 0x18, 0x0c, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0x06, 0x0c, 0x18, 0x30, 0x30, 0x00, 0x30,
+ 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xde, 0xde,
+ 0xde, 0xde, 0xc0, 0xc0, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfc, 0xc6, 0xc6, 0xc6, 0xfc, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc0, 0xc0, 0xc0, 0xc0,
+ 0xc0, 0xc0, 0xc0, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xcc,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xcc, 0xf8, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0xc0, 0xc0, 0xc0, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
+ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xc0, 0xc0, 0xc0, 0xfc, 0xc0,
+ 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
+ 0xc0, 0xc0, 0xc0, 0xde, 0xc6, 0xc6, 0xc6, 0xc6, 0x7e, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x0c,
+ 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xc6, 0xc6, 0xcc, 0xd8, 0xf0, 0xe0, 0xf0, 0xd8, 0xcc, 0xc6,
+ 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
+ 0xc0, 0xc0, 0xc0, 0xc0, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6,
+ 0xee, 0xfe, 0xd6, 0xd6, 0xd6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xc6, 0xc6, 0xe6, 0xe6, 0xf6, 0xde, 0xce, 0xce, 0xc6, 0xc6,
+ 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xf6, 0xda,
+ 0x6c, 0x06, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xc6, 0xc6, 0xc6, 0xc6, 0xfc,
+ 0xd8, 0xcc, 0xcc, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6,
+ 0xc0, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x6c, 0x38, 0x10, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xd6, 0xd6, 0xd6, 0xd6, 0xfe, 0x6c,
+ 0x6c, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0x6c, 0x38, 0x38,
+ 0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcc, 0xcc,
+ 0xcc, 0xcc, 0xcc, 0x78, 0x30, 0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0x06, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0xc0, 0xc0,
+ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0x60, 0x60, 0x60, 0x60, 0x60,
+ 0x60, 0x60, 0x60, 0x60, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0,
+ 0x60, 0x60, 0x30, 0x38, 0x18, 0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x78, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x6c, 0xc6, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00,
+ 0x00, 0x00, 0x18, 0x18, 0x18, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0x06, 0x06,
+ 0x7e, 0xc6, 0xc6, 0xc6, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc0,
+ 0xc0, 0xdc, 0xe6, 0xc6, 0xc6, 0xc6, 0xc6, 0xe6, 0xdc, 0x00, 0x00, 0x00,
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+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x06, 0x06, 0x76, 0xce, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xce, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x7c, 0xc6, 0xc6, 0xfe, 0xc0, 0xc0, 0xc0, 0x7e, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x1c, 0x36, 0x30, 0x30, 0xfc, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xce, 0xc6,
+ 0xc6, 0xc6, 0xce, 0x76, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0xc0, 0xc0,
+ 0xc0, 0xdc, 0xe6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x00, 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x1e, 0x06, 0x06,
+ 0x06, 0x06, 0x06, 0x06, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0xc0, 0xc0,
+ 0xc0, 0xc6, 0xcc, 0xd8, 0xf0, 0xf0, 0xd8, 0xcc, 0xc6, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x3c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xec, 0xfe, 0xd6,
+ 0xd6, 0xd6, 0xd6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0xdc, 0xe6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xdc, 0xe6, 0xc6,
+ 0xc6, 0xc6, 0xe6, 0xdc, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x76, 0xce, 0xc6, 0xc6, 0xc6, 0xce, 0x76, 0x06, 0x06, 0x06, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xdc, 0xe6, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
+ 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc0,
+ 0x70, 0x1c, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30,
+ 0x30, 0xfe, 0x30, 0x30, 0x30, 0x30, 0x30, 0x36, 0x1c, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0x6c, 0x38, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0xc6, 0xc6, 0xd6, 0xd6, 0xd6, 0xd6, 0xfe, 0x6c, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0x6c, 0x38, 0x38, 0x6c, 0xc6,
+ 0xc6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xce, 0x76, 0x06, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0xfe, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0xfe, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x1c, 0x30, 0x30, 0x30, 0x30, 0xe0, 0x30, 0x30, 0x30, 0x30,
+ 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x30, 0x30, 0x30, 0x00,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x30,
+ 0x30, 0x30, 0x30, 0x1c, 0x30, 0x30, 0x30, 0x30, 0xe0, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x10, 0x38, 0x38, 0x6c,
+ 0x6c, 0xc6, 0xc6, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x66,
+ 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x66, 0x3c, 0x18, 0xcc, 0x78, 0x00,
+ 0x00, 0x00, 0x6c, 0x6c, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x00, 0x7c, 0xc6, 0xc6,
+ 0xfe, 0xc0, 0xc0, 0xc0, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x6c,
+ 0x00, 0x7c, 0x06, 0x06, 0x7e, 0xc6, 0xc6, 0xc6, 0x7e, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x6c, 0x6c, 0x00, 0x7c, 0x06, 0x06, 0x7e, 0xc6, 0xc6, 0xc6,
+ 0x7e, 0x00, 0x00, 0x00, 0x00, 0x60, 0x30, 0x18, 0x00, 0x7c, 0x06, 0x06,
+ 0x7e, 0xc6, 0xc6, 0xc6, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c, 0x38,
+ 0x00, 0x7c, 0x06, 0x06, 0x7e, 0xc6, 0xc6, 0xc6, 0x7e, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x7c, 0xc6, 0xc0, 0xc0, 0xc0, 0xc0, 0xc6,
+ 0x7c, 0x18, 0x0c, 0x38, 0x00, 0x10, 0x38, 0x6c, 0x00, 0x7c, 0xc6, 0xc6,
+ 0xfe, 0xc0, 0xc0, 0xc0, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c, 0x6c,
+ 0x00, 0x7c, 0xc6, 0xc6, 0xfe, 0xc0, 0xc0, 0xc0, 0x7e, 0x00, 0x00, 0x00,
+ 0x00, 0x60, 0x30, 0x18, 0x00, 0x7c, 0xc6, 0xc6, 0xfe, 0xc0, 0xc0, 0xc0,
+ 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c, 0x6c, 0x00, 0x38, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00, 0x00, 0x10, 0x38, 0x6c,
+ 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00,
+ 0x00, 0x60, 0x30, 0x18, 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x3c, 0x00, 0x00, 0x00, 0xc6, 0xc6, 0x10, 0x38, 0x6c, 0xc6, 0xc6, 0xc6,
+ 0xfe, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x38, 0x6c, 0x38, 0x00,
+ 0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00,
+ 0x18, 0x30, 0x60, 0x00, 0xfe, 0xc0, 0xc0, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0,
+ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xec, 0x36, 0x36,
+ 0x76, 0xde, 0xd8, 0xd8, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x3c,
+ 0x6c, 0xcc, 0xcc, 0xfe, 0xcc, 0xcc, 0xcc, 0xcc, 0xce, 0x00, 0x00, 0x00,
+ 0x00, 0x10, 0x38, 0x6c, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c, 0x6c, 0x00, 0x7c, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x60, 0x30, 0x18,
+ 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00,
+ 0x00, 0x10, 0x38, 0x6c, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x60, 0x30, 0x18, 0x00, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x6c, 0x6c,
+ 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xce, 0x76, 0x06, 0xc6, 0x7c, 0x00,
+ 0x6c, 0x6c, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x6c, 0x6c, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
+ 0x30, 0x78, 0xcc, 0xc0, 0xc0, 0xcc, 0x78, 0x30, 0x30, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x38, 0x6c, 0x60, 0x60, 0x60, 0xf8, 0x60, 0x60, 0x60, 0xe6,
+ 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcc, 0xcc, 0xcc, 0x78, 0x30, 0xfc,
+ 0x30, 0xfc, 0x30, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xcc,
+ 0xcc, 0xf8, 0xc4, 0xcc, 0xde, 0xcc, 0xcc, 0xcc, 0xc6, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x0e, 0x1b, 0x18, 0x18, 0x18, 0x7e, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0xd8, 0x70, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x00, 0x7c, 0x06, 0x06,
+ 0x7e, 0xc6, 0xc6, 0xc6, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x18, 0x30,
+ 0x00, 0x38, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x00, 0x00, 0x00,
+ 0x00, 0x0c, 0x18, 0x30, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x0c, 0x18, 0x30, 0x00, 0xc6, 0xc6, 0xc6,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x00,
+ 0x00, 0xdc, 0xe6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00,
+ 0x76, 0xdc, 0x00, 0xc6, 0xc6, 0xe6, 0xf6, 0xfe, 0xde, 0xce, 0xc6, 0xc6,
+ 0xc6, 0x00, 0x00, 0x00, 0x00, 0x78, 0xd8, 0xd8, 0x6c, 0x00, 0xfc, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c, 0x6c,
+ 0x38, 0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x18, 0x18, 0x00, 0x18, 0x18, 0x30, 0x60, 0xc0, 0xc6, 0xc6,
+ 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xfe, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0xfe, 0x06, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xc0, 0xc2, 0xc6, 0xcc, 0xd8, 0x30, 0x60, 0xdc, 0x86, 0x0c,
+ 0x18, 0x3e, 0x00, 0x00, 0x00, 0x00, 0xc0, 0xc2, 0xc6, 0xcc, 0xd8, 0x30,
+ 0x66, 0xce, 0x9e, 0x3e, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30,
+ 0x00, 0x30, 0x30, 0x30, 0x78, 0x78, 0x78, 0x78, 0x30, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x6c, 0xd8, 0x6c, 0x36, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd8, 0x6c, 0x36,
+ 0x6c, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x22, 0x88, 0x22, 0x88,
+ 0x22, 0x88, 0x22, 0x88, 0x22, 0x88, 0x22, 0x88, 0x22, 0x88, 0x22, 0x88,
+ 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa,
+ 0x55, 0xaa, 0x55, 0xaa, 0xdd, 0x77, 0xdd, 0x77, 0xdd, 0x77, 0xdd, 0x77,
+ 0xdd, 0x77, 0xdd, 0x77, 0xdd, 0x77, 0xdd, 0x77, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0xf8, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0xf8, 0x18,
+ 0x18, 0xf8, 0xf8, 0x18, 0x18, 0x18, 0x18, 0x18, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0xf6, 0xf6, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xfe, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xf8, 0x18,
+ 0x18, 0xf8, 0xf8, 0x18, 0x18, 0x18, 0x18, 0x18, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0xf6, 0xf6, 0x06, 0x06, 0xf6, 0xf6, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0xfe, 0x06,
+ 0x06, 0xf6, 0xf6, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0xf6, 0xf6, 0x06, 0x06, 0xfe, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xfe, 0xfe, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8, 0xf8, 0x18,
+ 0x18, 0xf8, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0xf8, 0xf8, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x1f, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xff,
+ 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0xff, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x1f, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff,
+ 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0xff, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x1f, 0x1f, 0x18, 0x18, 0x1f, 0x1f, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x37,
+ 0x37, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x37, 0x37, 0x30, 0x30, 0x3f, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0x3f, 0x30, 0x30, 0x37, 0x37, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xf7, 0xf7, 0x00,
+ 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0xff, 0xff, 0x00, 0x00, 0xf7, 0xf7, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x37, 0x37, 0x30, 0x30, 0x37, 0x37, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00,
+ 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0xf7, 0xf7, 0x00, 0x00, 0xf7, 0xf7, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0xff, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0xff,
+ 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0xff, 0xff, 0x00, 0x00, 0xff, 0xff, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x3f,
+ 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x1f, 0x1f, 0x18, 0x18, 0x1f, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0x1f, 0x18, 0x18, 0x1f, 0x1f, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f,
+ 0x3f, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0xff, 0xff, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0xff, 0xff, 0x18, 0x18, 0xff, 0xff, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xf8,
+ 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x1f, 0x1f, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xf0, 0xf0, 0xf0, 0xf0,
+ 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
+ 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
+ 0x0f, 0x0f, 0x0f, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x76, 0xd6, 0xdc, 0xc8, 0xc8, 0xdc, 0xd6, 0x76, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x78, 0xcc, 0xcc, 0xcc, 0xd8, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc,
+ 0xd8, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0xfe, 0xc6, 0xc6, 0xc0, 0xc0, 0xc0,
+ 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x7e, 0xfe, 0x24, 0x24, 0x24, 0x24, 0x66, 0xc6, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0xfe, 0xfe, 0xc2, 0x60, 0x30, 0x18, 0x30, 0x60, 0xc2, 0xfe,
+ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0xc8, 0xcc,
+ 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x76, 0x6c, 0x60, 0xc0, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x66, 0xfc, 0x98, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0x30, 0x30, 0x78, 0xcc, 0xcc,
+ 0xcc, 0x78, 0x30, 0x30, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c,
+ 0xc6, 0xc6, 0xc6, 0xfe, 0xc6, 0xc6, 0xc6, 0x6c, 0x38, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x38, 0x6c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x6c, 0x6c, 0x6c,
+ 0xee, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0xcc, 0x60, 0x30, 0x78, 0xcc,
+ 0xcc, 0xcc, 0xcc, 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x76, 0xbb, 0x99, 0x99, 0xdd, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x02, 0x06, 0x3c, 0x6c, 0xce, 0xd6, 0xd6, 0xe6, 0x6c, 0x78,
+ 0xc0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x1e, 0x30, 0x60, 0xc0, 0xc0, 0xfe,
+ 0xc0, 0xc0, 0x60, 0x30, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c,
+ 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00, 0x00, 0xfe, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0xfc,
+ 0x30, 0x30, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x60, 0x30, 0x18, 0x0c, 0x18, 0x30, 0x60, 0x00, 0xfc, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x18, 0x30, 0x60, 0xc0, 0x60, 0x30, 0x18, 0x00,
+ 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1c, 0x36, 0x36, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xd8, 0xd8, 0x70, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0xfc, 0x00, 0x30, 0x30, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x76, 0xdc, 0x00,
+ 0x76, 0xdc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0xcc, 0xcc,
+ 0xcc, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x0c, 0x0c,
+ 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0xcc, 0x6c, 0x3c, 0x1c, 0x0c, 0x00, 0x00,
+ 0x00, 0xd8, 0xec, 0xcc, 0xcc, 0xcc, 0xcc, 0xcc, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x38, 0x6c, 0x0c, 0x18, 0x30, 0x60, 0x7c,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00
+};
diff --git a/sys/vm/vm.c b/sys/vm/vm.c
new file mode 100644
index 0000000..1483909
--- /dev/null
+++ b/sys/vm/vm.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <vm/vm.h>
+
+volatile struct limine_hhdm_request g_hhdm_request = {
+ .id = LIMINE_HHDM_REQUEST,
+ .revision = 0
+};
diff --git a/sys/vm/vm_physseg.c b/sys/vm/vm_physseg.c
new file mode 100644
index 0000000..3b546e7
--- /dev/null
+++ b/sys/vm/vm_physseg.c
@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2023 Ian Marco Moffett and the VegaOS team.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of VegaOS nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* $Id$ */
+
+#include <sys/limine.h>
+#include <sys/cdefs.h>
+#include <sys/syslog.h>
+#include <vm/vm_physseg.h>
+#include <vm/vm.h>
+#include <bitmap.h>
+#include <string.h>
+
+__MODULE_NAME("vm_physseg");
+
+__KERNEL_META("$Vega$: vm_physseg.c, Ian Marco Moffett, "
+ "The Vega physical memory manager");
+
+#define VM_PHYSSEG_DEBUG
+
+#if defined(VM_PHYSSEG_DEBUG)
+#define DPRINTF(...) KDEBUG(__VA_ARGS__)
+#else
+#define DPRINTF(...) __nothing
+#endif /* defined(VM_PHYSSEG_DEBUG) */
+
+static struct limine_memmap_request mmap_req = {
+ .id = LIMINE_MEMMAP_REQUEST,
+ .revision = 0
+};
+
+static struct limine_memmap_response *resp = NULL;
+
+__used static const char *segment_name[] = {
+ [LIMINE_MEMMAP_USABLE] = "usable",
+ [LIMINE_MEMMAP_RESERVED] = "reserved",
+ [LIMINE_MEMMAP_ACPI_RECLAIMABLE] = "ACPI reclaimable",
+ [LIMINE_MEMMAP_ACPI_NVS] = "ACPI NVS",
+ [LIMINE_MEMMAP_BAD_MEMORY] = "bad",
+ [LIMINE_MEMMAP_BOOTLOADER_RECLAIMABLE] = "bootloader reclaimable",
+ [LIMINE_MEMMAP_KERNEL_AND_MODULES] = "kernel and modules",
+ [LIMINE_MEMMAP_FRAMEBUFFER] = "framebuffer"
+};
+
+static const int MAX_SEGMENTS = __ARRAY_COUNT(segment_name);
+
+
+static bitmap_t bitmap = NULL;
+static size_t bitmap_size = 0;
+static size_t bitmap_free_start; /* Beginning bit of free region */
+
+static void
+vm_physseg_bitmap_alloc(void)
+{
+ struct limine_memmap_entry *entry;
+
+ for (size_t i = 0; i < resp->entry_count; ++i) {
+ entry = resp->entries[i];
+
+ /* Drop any entries with an invalid type */
+ if (entry->type >= MAX_SEGMENTS) {
+ continue;
+ }
+
+ if (entry->type != LIMINE_MEMMAP_USABLE) {
+ /* This memory is not usable */
+ continue;
+ }
+
+ if (entry->length >= bitmap_size) {
+ bitmap = PHYS_TO_VIRT(entry->base);
+ memset(bitmap, 0xFF, bitmap_size);
+ entry->length -= bitmap_size;
+ entry->base += bitmap_size;
+ return;
+ }
+ }
+}
+
+static void
+vm_physseg_bitmap_populate(void)
+{
+ struct limine_memmap_entry *entry;
+ size_t start, end;
+
+ for (size_t i = 0; i < resp->entry_count; ++i) {
+ entry = resp->entries[i];
+
+ /* Drop any entries with an invalid type */
+ if (entry->type >= MAX_SEGMENTS) {
+ continue;
+ }
+
+ /* Dump the memory map if we are debugging */
+ start = entry->base;
+ end = entry->base + entry->length;
+ DPRINTF("0x%x - 0x%x, size: 0x%x, type: %s\n",
+ start, end, entry->length,
+ segment_name[entry->type]);
+
+ /* Don't set non-usable entries as free */
+ if (entry->type != LIMINE_MEMMAP_USABLE) {
+ continue;
+ }
+
+ /* Populate */
+ if (bitmap_free_start == 0) {
+ bitmap_free_start = entry->base/0x1000;
+ }
+ for (size_t j = 0; j < entry->length; j += 0x1000) {
+ bitmap_unset_bit(bitmap, (entry->base + j) / 0x1000);
+ }
+ }
+}
+
+static void
+vm_physseg_bitmap_init(void)
+{
+ uintptr_t highest_addr;
+ size_t highest_page_idx;
+ struct limine_memmap_entry *entry;
+
+ highest_addr = 0;
+ highest_page_idx = 0;
+
+ /* Find the highest entry */
+ for (size_t i = 0; i < resp->entry_count; ++i) {
+ entry = resp->entries[i];
+
+ if (entry->type != LIMINE_MEMMAP_USABLE) {
+ /* Memeory not usable */
+ continue;
+ }
+
+ highest_addr = __MAX(highest_addr, entry->base + entry->length);
+ }
+
+ highest_page_idx = highest_addr / 0x1000;
+ bitmap_size = __ALIGN_UP(highest_page_idx / 8, 0x1000);
+
+ DPRINTF("Bitmap size: %d bytes\n", bitmap_size);
+ DPRINTF("Allocating and populating bitmap now...\n");
+
+ vm_physseg_bitmap_alloc();
+ vm_physseg_bitmap_populate();
+}
+
+void
+vm_physseg_init(void)
+{
+ resp = mmap_req.response;
+
+ vm_physseg_bitmap_init();
+}
--
cgit v1.2.3