grml...

[seabios.git] / src / bregs.h

diff --git a/src/bregs.h b/src/bregs.h
index f7060e8a08a0d6536b91053f576e927def31df83..577effc0e5b76b2164cada64091dcac02aa0d2fe 100644 (file)
--- a/src/bregs.h
+++ b/src/bregs.h
@@ -2,16 +2,34 @@
 //
 // Copyright (C) 2008  Kevin O'Connor <kevin@koconnor.net>
 //
-// This file may be distributed under the terms of the GNU GPLv3 license.
+// This file may be distributed under the terms of the GNU LGPLv3 license.
 
 #ifndef __BREGS_H
 #define __BREGS_H
 
+// CPU flag bitdefs
+#define F_CF (1<<0)
+#define F_ZF (1<<6)
+#define F_IF (1<<9)
+#define F_ID (1<<21)
+
+// CR0 flags
+#define CR0_PG (1<<31) // Paging
+#define CR0_CD (1<<30) // Cache disable
+#define CR0_NW (1<<29) // Not Write-through
+#define CR0_PE (1<<0)  // Protection enable
+
+
+#ifndef __ASSEMBLY__
+
+#include "farptr.h" // struct segoff_s
 
 /****************************************************************
  * Registers saved/restored in romlayout.S
  ****************************************************************/
 
+#include "types.h" // u16
+
 #define UREG(ER, R, RH, RL) union { u32 ER; struct { u16 R; u16 R ## _hi; }; struct { u8 RL; u8 RH; u8 R ## _hilo; u8 R ## _hihi; }; }
 
 // Layout of registers passed in to irq handlers.  Note that this
@@ -20,14 +38,14 @@
 struct bregs {
     u16 ds;
     u16 es;
-    UREG(edi, di, di_hi, di_lo);
-    UREG(esi, si, si_hi, si_lo);
+    UREG(edi, di, di8u, di8l);
+    UREG(esi, si, si8u, si8l);
+    UREG(ebp, bp, bp8u, bp8l);
     UREG(ebx, bx, bh, bl);
     UREG(edx, dx, dh, dl);
     UREG(ecx, cx, ch, cl);
     UREG(eax, ax, ah, al);
-    u16 ip;
-    u16 cs;
+    struct segoff_s code;
     u16 flags;
 } PACKED;
 
@@ -36,10 +54,6 @@ struct bregs {
  * Helper functions
  ****************************************************************/
 
-// bregs flags bitdefs
-#define F_ZF (1<<6)
-#define F_CF (1<<0)
-
 static inline void
 set_cf(struct bregs *regs, int cond)
 {
@@ -66,25 +80,18 @@ set_code_success(struct bregs *regs)
 }
 
 static inline void
-set_fail_silent(struct bregs *regs)
+set_invalid_silent(struct bregs *regs)
 {
     set_cf(regs, 1);
 }
 
 static inline void
-set_code_fail_silent(struct bregs *regs, u8 code)
+set_code_invalid_silent(struct bregs *regs, u8 code)
 {
     regs->ah = code;
     set_cf(regs, 1);
 }
 
-#define set_fail(regs) \
-    __set_fail(__func__, __LINE__, (regs))
-#define set_code_fail(regs, code)               \
-    __set_code_fail(__func__, __LINE__, (regs), (code))
-
-// output.c
-void __set_fail(const char *fname, int lineno, struct bregs *regs);
-void __set_code_fail(const char *fname, int lineno, struct bregs *regs, u8 code);
+#endif // !__ASSEMBLY__
 
 #endif // bregs.h