From ad56eb28f0614db4b7656ade390f1c79b446cbc9 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Sat, 10 Jul 2021 15:51:54 +0200
Subject: A20, E820h, Real Mode Emulation

---
 src/loader/inc/rem.h | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/loader/inc/rem.h

(limited to 'src/loader/inc/rem.h')

diff --git a/src/loader/inc/rem.h b/src/loader/inc/rem.h
new file mode 100644
index 0000000..61eb30a
--- /dev/null
+++ b/src/loader/inc/rem.h
@@ -0,0 +1,29 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+// Real mode emulation - Implementation by Napalm (see rem.asm)
+
+#ifndef REM_H
+#define REM_H
+
+#include <def.h>
+
+#define EFLAGS_CF (1 << 0) // Carry flag
+#define EFLAGS_ZF (1 << 6) // Zero flag
+
+struct rem_regs {
+	u16 gs;
+	u16 fs;
+	u16 es;
+	u16 ds;
+	u32 eflags;
+	u32 ebp;
+	u32 edi;
+	u32 esi;
+	u32 edx;
+	u32 ecx;
+	u32 ebx;
+	u32 eax;
+} PACKED;
+
+void rem_int(u8 int_num, struct rem_regs *out_regs, struct rem_regs *in_regs);
+
+#endif
-- 
cgit v1.2.3