From 4c00208b3a50be0bc6dd240e59d6d891ef18d8b3 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Fri, 23 Feb 2024 17:37:10 -0500
Subject: kernel/amd64: frame: Add macro to init trapframe

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 sys/include/arch/amd64/frame.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sys/include/arch/amd64/frame.h b/sys/include/arch/amd64/frame.h
index aaee45c..78c32f4 100644
--- a/sys/include/arch/amd64/frame.h
+++ b/sys/include/arch/amd64/frame.h
@@ -56,5 +56,13 @@ struct trapframe {
     uint64_t rsp;
     uint64_t ss;
 };
+
+#define init_frame(FRAME, IP, SP)   \
+    (FRAME)->rip        = IP;       \
+    (FRAME)->cs         = 0x08;     \
+    (FRAME)->rflags     = 0x202;    \
+    (FRAME)->rsp        = SP;       \
+    (FRAME)->ss         = 0x10;     \
+
 #endif      /* !defined(__ASSEMBLER__) */
 #endif  /* !_AMD64_FRAME_H_ */
-- 
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