x86_64 support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1320 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 24 insertions, 27 deletions

diff --git a/target-i386/exec.h b/target-i386/exec.h
index 404457eba..c4e59c423 100644
--- a/target-i386/exec.h
+++ b/target-i386/exec.h
@@ -21,77 +21,74 @@
 #include "dyngen-exec.h"
 
 /* XXX: factorize this mess */
-#if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__)
-#define HOST_LONG_BITS 64
-#else
-#define HOST_LONG_BITS 32
-#endif
-
 #ifdef TARGET_X86_64
 #define TARGET_LONG_BITS 64
 #else
 #define TARGET_LONG_BITS 32
 #endif
 
+#include "cpu-defs.h"
+
 /* at least 4 register variables are defined */
 register struct CPUX86State *env asm(AREG0);
 
-/* XXX: use 64 bit regs if HOST_LONG_BITS == 64 */
-#if TARGET_LONG_BITS == 32
+#if TARGET_LONG_BITS > HOST_LONG_BITS
+
+/* no registers can be used */
+#define T0 (env->t0)
+#define T1 (env->t1)
+#define T2 (env->t2)
 
-register uint32_t T0 asm(AREG1);
-register uint32_t T1 asm(AREG2);
-register uint32_t T2 asm(AREG3);
+#else
+
+/* XXX: use unsigned long instead of target_ulong - better code will
+   be generated for 64 bit CPUs */
+register target_ulong T0 asm(AREG1);
+register target_ulong T1 asm(AREG2);
+register target_ulong T2 asm(AREG3);
 
 /* if more registers are available, we define some registers too */
 #ifdef AREG4
-register uint32_t EAX asm(AREG4);
+register target_ulong EAX asm(AREG4);
 #define reg_EAX
 #endif
 
 #ifdef AREG5
-register uint32_t ESP asm(AREG5);
+register target_ulong ESP asm(AREG5);
 #define reg_ESP
 #endif
 
 #ifdef AREG6
-register uint32_t EBP asm(AREG6);
+register target_ulong EBP asm(AREG6);
 #define reg_EBP
 #endif
 
 #ifdef AREG7
-register uint32_t ECX asm(AREG7);
+register target_ulong ECX asm(AREG7);
 #define reg_ECX
 #endif
 
 #ifdef AREG8
-register uint32_t EDX asm(AREG8);
+register target_ulong EDX asm(AREG8);
 #define reg_EDX
 #endif
 
 #ifdef AREG9
-register uint32_t EBX asm(AREG9);
+register target_ulong EBX asm(AREG9);
 #define reg_EBX
 #endif
 
 #ifdef AREG10
-register uint32_t ESI asm(AREG10);
+register target_ulong ESI asm(AREG10);
 #define reg_ESI
 #endif
 
 #ifdef AREG11
-register uint32_t EDI asm(AREG11);
+register target_ulong EDI asm(AREG11);
 #define reg_EDI
 #endif
 
-#else
-
-/* no registers can be used */
-#define T0 (env->t0)
-#define T1 (env->t1)
-#define T2 (env->t2)
-
-#endif
+#endif /* ! (TARGET_LONG_BITS > HOST_LONG_BITS) */
 
 #define A0 T2