1 files changed, 29 insertions, 0 deletions
diff --git a/src/loader/inc/real.h b/src/loader/inc/real.h
new file mode 100644
index 0000000..a9d36dc
--- /dev/null
+++ b/src/loader/inc/real.h
@@ -0,0 +1,29 @@
+// MIT License, Copyright (c) 2021 Marvin Borner
+// Real mode emulation - Implementation by Napalm (see rem.asm)
+
+#ifndef REAL_H
+#define REAL_H
+
+#include <def.h>
+
+#define EFLAGS_CF (1 << 0) // Carry flag
+#define EFLAGS_ZF (1 << 6) // Zero flag
+
+struct real_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 real_int(u8 interrupt_num, struct real_regs *out_regs, struct real_regs *in_regs);
+
+#endif