From 25c0a696a3a7fe547fd69ff505759cf0e222927d Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Sun, 12 Oct 2025 22:03:32 -0400
Subject: emux64: cpu: Add initial CPU cycle loop w/ HLT

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 emux64/src/include/cpu/cpu.h | 12 ++++++++++++
 emux64/src/include/rom.h     |  2 ++
 2 files changed, 14 insertions(+)

(limited to 'emux64/src/include')

diff --git a/emux64/src/include/cpu/cpu.h b/emux64/src/include/cpu/cpu.h
index 2d35c73..bffb6c0 100644
--- a/emux64/src/include/cpu/cpu.h
+++ b/emux64/src/include/cpu/cpu.h
@@ -62,12 +62,14 @@
  * @fn: IEEE 754 single-precision registers
  * @dn: IEEE 754 double-precision registers
  * @pc: Program counter
+ * @run: Processor running
  */
 struct osmx_core {
     uint64_t xn[N_GPREG];
     float fn[N_FLOATREG];
     double dn[N_DUBREG];
     uintptr_t pc;
+    uint8_t run : 1;
 };
 
 /*
@@ -97,4 +99,14 @@ int cpu_reset(struct osmx_core *core);
  */
 void cpu_dump(struct osmx_core *core);
 
+/*
+ * Initialize the registers to use for the
+ * CPU
+ *
+ * @core: Core to use
+ *
+ * Returns zero on success
+ */
+int cpu_run(struct osmx_core *core);
+
 #endif  /* !CPU_CPU_H */
diff --git a/emux64/src/include/rom.h b/emux64/src/include/rom.h
index 8d3501c..0480440 100644
--- a/emux64/src/include/rom.h
+++ b/emux64/src/include/rom.h
@@ -44,6 +44,8 @@ struct osmx_rom {
     size_t length;
 };
 
+extern struct osmx_rom g_firmware;
+
 /*
  * Open a ROM file by path
  *
-- 
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