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authorbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2003-03-06 23:23:54 +0000
committerbellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>2003-03-06 23:23:54 +0000
commit7d13299d07a9c3c42277207ae7a691f0501a70b2 (patch)
tree981b791299c674712bacc00292de4afc6cc436ec /op-i386.c
parent1017ebe9cb38ae034b0e7c6c449abe2c9b5284fb (diff)
added translation cache
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@25 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'op-i386.c')
-rw-r--r--op-i386.c221
1 files changed, 20 insertions, 201 deletions
diff --git a/op-i386.c b/op-i386.c
index 2cca6a6722..6bd9de0155 100644
--- a/op-i386.c
+++ b/op-i386.c
@@ -1,109 +1,25 @@
-#define DEBUG_EXEC
-
-typedef unsigned char uint8_t;
-typedef unsigned short uint16_t;
-typedef unsigned int uint32_t;
-typedef unsigned long long uint64_t;
-
-typedef signed char int8_t;
-typedef signed short int16_t;
-typedef signed int int32_t;
-typedef signed long long int64_t;
-
-#define bswap32(x) \
-({ \
- uint32_t __x = (x); \
- ((uint32_t)( \
- (((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \
- (((uint32_t)(__x) & (uint32_t)0x0000ff00UL) << 8) | \
- (((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >> 8) | \
- (((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )); \
-})
-
-#define NULL 0
-#include <fenv.h>
-
-typedef struct FILE FILE;
-extern FILE *logfile;
-extern int loglevel;
-extern int fprintf(FILE *, const char *, ...);
-
-#ifdef __i386__
-register unsigned int T0 asm("ebx");
-register unsigned int T1 asm("esi");
-register unsigned int A0 asm("edi");
-register struct CPUX86State *env asm("ebp");
-#endif
-#ifdef __powerpc__
-register unsigned int T0 asm("r24");
-register unsigned int T1 asm("r25");
-register unsigned int A0 asm("r26");
-register struct CPUX86State *env asm("r27");
-#endif
-#ifdef __arm__
-register unsigned int T0 asm("r4");
-register unsigned int T1 asm("r5");
-register unsigned int A0 asm("r6");
-register struct CPUX86State *env asm("r7");
-#endif
-#ifdef __mips__
-register unsigned int T0 asm("s0");
-register unsigned int T1 asm("s1");
-register unsigned int A0 asm("s2");
-register struct CPUX86State *env asm("s3");
-#endif
-#ifdef __sparc__
-register unsigned int T0 asm("l0");
-register unsigned int T1 asm("l1");
-register unsigned int A0 asm("l2");
-register struct CPUX86State *env asm("l3");
-#endif
-
-/* force GCC to generate only one epilog at the end of the function */
-#define FORCE_RET() asm volatile ("");
-
-#ifndef OPPROTO
-#define OPPROTO
-#endif
-
-#define xglue(x, y) x ## y
-#define glue(x, y) xglue(x, y)
-
-#define EAX (env->regs[R_EAX])
-#define ECX (env->regs[R_ECX])
-#define EDX (env->regs[R_EDX])
-#define EBX (env->regs[R_EBX])
-#define ESP (env->regs[R_ESP])
-#define EBP (env->regs[R_EBP])
-#define ESI (env->regs[R_ESI])
-#define EDI (env->regs[R_EDI])
-#define PC (env->pc)
-#define DF (env->df)
-
-#define CC_SRC (env->cc_src)
-#define CC_DST (env->cc_dst)
-#define CC_OP (env->cc_op)
-
-/* float macros */
-#define FT0 (env->ft0)
-#define ST0 (env->fpregs[env->fpstt])
-#define ST(n) (env->fpregs[(env->fpstt + (n)) & 7])
-#define ST1 ST(1)
-
-extern int __op_param1, __op_param2, __op_param3;
-#define PARAM1 ((long)(&__op_param1))
-#define PARAM2 ((long)(&__op_param2))
-#define PARAM3 ((long)(&__op_param3))
-
-#include "cpu-i386.h"
-
-typedef struct CCTable {
- int (*compute_all)(void); /* return all the flags */
- int (*compute_c)(void); /* return the C flag */
-} CCTable;
+/*
+ * i386 micro operations
+ *
+ * Copyright (c) 2003 Fabrice Bellard
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include "exec-i386.h"
/* NOTE: data are not static to force relocation generation by GCC */
-extern CCTable cc_table[];
uint8_t parity_table[256] = {
CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
@@ -1878,100 +1794,3 @@ void OPPROTO op_fldcw_A0(void)
fesetround(rnd_type);
}
-/* main execution loop */
-uint8_t code_gen_buffer[65536];
-
-#ifdef DEBUG_EXEC
-static const char *cc_op_str[] = {
- "DYNAMIC",
- "EFLAGS",
- "MUL",
- "ADDB",
- "ADDW",
- "ADDL",
- "ADCB",
- "ADCW",
- "ADCL",
- "SUBB",
- "SUBW",
- "SUBL",
- "SBBB",
- "SBBW",
- "SBBL",
- "LOGICB",
- "LOGICW",
- "LOGICL",
- "INCB",
- "INCW",
- "INCL",
- "DECB",
- "DECW",
- "DECL",
- "SHLB",
- "SHLW",
- "SHLL",
- "SARB",
- "SARW",
- "SARL",
-};
-#endif
-
-int cpu_x86_exec(CPUX86State *env1)
-{
- int saved_T0, saved_T1, saved_A0;
- CPUX86State *saved_env;
- int code_gen_size, ret;
- void (*gen_func)(void);
-
- /* first we save global registers */
- saved_T0 = T0;
- saved_T1 = T1;
- saved_A0 = A0;
- saved_env = env;
- env = env1;
-
- /* prepare setjmp context for exception handling */
- if (setjmp(env->jmp_env) == 0) {
- for(;;) {
-#ifdef DEBUG_EXEC
- if (loglevel) {
- int eflags;
- eflags = cc_table[CC_OP].compute_all();
- eflags |= (DF & DIRECTION_FLAG);
- fprintf(logfile,
- "EAX=%08x EBX=%08X ECX=%08x EDX=%08x\n"
- "ESI=%08x EDI=%08X EBP=%08x ESP=%08x\n"
- "CCS=%08x CCD=%08x CCO=%-8s EFL=%c%c%c%c%c%c%c\n",
- env->regs[R_EAX], env->regs[R_EBX], env->regs[R_ECX], env->regs[R_EDX],
- env->regs[R_ESI], env->regs[R_EDI], env->regs[R_EBP], env->regs[R_ESP],
- env->cc_src, env->cc_dst, cc_op_str[env->cc_op],
- eflags & DIRECTION_FLAG ? 'D' : '-',
- eflags & CC_O ? 'O' : '-',
- eflags & CC_S ? 'S' : '-',
- eflags & CC_Z ? 'Z' : '-',
- eflags & CC_A ? 'A' : '-',
- eflags & CC_P ? 'P' : '-',
- eflags & CC_C ? 'C' : '-'
- );
-#if 1
- fprintf(logfile, "ST0=%f ST1=%f ST2=%f ST3=%f\n",
- (double)ST0, (double)ST1, (double)ST(2), (double)ST(3));
-#endif
- }
-#endif
- cpu_x86_gen_code(code_gen_buffer, sizeof(code_gen_buffer),
- &code_gen_size, (uint8_t *)env->pc);
- /* execute the generated code */
- gen_func = (void *)code_gen_buffer;
- gen_func();
- }
- }
- ret = env->exception_index;
-
- /* restore global registers */
- T0 = saved_T0;
- T1 = saved_T1;
- A0 = saved_A0;
- env = saved_env;
- return ret;
-}