exec-i386.h

   1 /*
   2  *  i386 execution defines
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 typedef unsigned char uint8_t;
  21 typedef unsigned short uint16_t;
  22 typedef unsigned int uint32_t;
  23 typedef unsigned long long uint64_t;
  24
  25 typedef signed char int8_t;
  26 typedef signed short int16_t;
  27 typedef signed int int32_t;
  28 typedef signed long long int64_t;
  29
  30 #define bswap32(x) \
  31 ({ \
  32         uint32_t __x = (x); \
  33         ((uint32_t)( \
  34                 (((uint32_t)(__x) & (uint32_t)0x000000ffUL) << 24) | \
  35                 (((uint32_t)(__x) & (uint32_t)0x0000ff00UL) <<  8) | \
  36                 (((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >>  8) | \
  37                 (((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) )); \
  38 })
  39
  40 #define NULL 0
  41 #include <fenv.h>
  42
  43 typedef struct FILE FILE;
  44 extern FILE *logfile;
  45 extern int loglevel;
  46 extern int fprintf(FILE *, const char *, ...);
  47 extern int printf(const char *, ...);
  48
  49 #ifdef __i386__
  50 register unsigned int T0 asm("ebx");
  51 register unsigned int T1 asm("esi");
  52 register unsigned int A0 asm("edi");
  53 register struct CPUX86State *env asm("ebp");
  54 #endif
  55 #ifdef __powerpc__
  56 register unsigned int EAX asm("r16");
  57 register unsigned int ECX asm("r17");
  58 register unsigned int EDX asm("r18");
  59 register unsigned int EBX asm("r19");
  60 register unsigned int ESP asm("r20");
  61 register unsigned int EBP asm("r21");
  62 register unsigned int ESI asm("r22");
  63 register unsigned int EDI asm("r23");
  64 register unsigned int T0 asm("r24");
  65 register unsigned int T1 asm("r25");
  66 register unsigned int A0 asm("r26");
  67 register struct CPUX86State *env asm("r27");
  68 #define USE_INT_TO_FLOAT_HELPERS
  69 #define BUGGY_GCC_DIV64
  70 #define reg_EAX
  71 #define reg_ECX
  72 #define reg_EDX
  73 #define reg_EBX
  74 #define reg_ESP
  75 #define reg_EBP
  76 #define reg_ESI
  77 #define reg_EDI
  78 #endif
  79 #ifdef __arm__
  80 register unsigned int T0 asm("r4");
  81 register unsigned int T1 asm("r5");
  82 register unsigned int A0 asm("r6");
  83 register struct CPUX86State *env asm("r7");
  84 #endif
  85 #ifdef __mips__
  86 register unsigned int T0 asm("s0");
  87 register unsigned int T1 asm("s1");
  88 register unsigned int A0 asm("s2");
  89 register struct CPUX86State *env asm("s3");
  90 #endif
  91 #ifdef __sparc__
  92 register unsigned int EAX asm("l0");
  93 register unsigned int ECX asm("l1");
  94 register unsigned int EDX asm("l2");
  95 register unsigned int EBX asm("l3");
  96 register unsigned int ESP asm("l4");
  97 register unsigned int EBP asm("l5");
  98 register unsigned int ESI asm("l6");
  99 register unsigned int EDI asm("l7");
 100 register unsigned int T0 asm("g1");
 101 register unsigned int T1 asm("g2");
 102 register unsigned int A0 asm("g3");
 103 register struct CPUX86State *env asm("g6");
 104 #define USE_FP_CONVERT
 105 #define reg_EAX
 106 #define reg_ECX
 107 #define reg_EDX
 108 #define reg_EBX
 109 #define reg_ESP
 110 #define reg_EBP
 111 #define reg_ESI
 112 #define reg_EDI
 113 #endif
 114 #ifdef __s390__
 115 register unsigned int T0 asm("r7");
 116 register unsigned int T1 asm("r8");
 117 register unsigned int A0 asm("r9");
 118 register struct CPUX86State *env asm("r10");
 119 #endif
 120 #ifdef __alpha__
 121 register unsigned int T0 asm("$9");
 122 register unsigned int T1 asm("$10");
 123 register unsigned int A0 asm("$11");
 124 register unsigned int EAX asm("$12");
 125 register unsigned int ESP asm("$13");
 126 register unsigned int EBP asm("$14");
 127 register struct CPUX86State *env asm("$15");
 128 #define reg_EAX
 129 #define reg_ESP
 130 #define reg_EBP
 131 #endif
 132 #ifdef __ia64__
 133 register unsigned int T0 asm("r24");
 134 register unsigned int T1 asm("r25");
 135 register unsigned int A0 asm("r26");
 136 register struct CPUX86State *env asm("r27");
 137 #endif
 138
 139 /* force GCC to generate only one epilog at the end of the function */
 140 #define FORCE_RET() asm volatile ("");
 141
 142 #ifndef OPPROTO
 143 #define OPPROTO
 144 #endif
 145
 146 #define xglue(x, y) x ## y
 147 #define glue(x, y) xglue(x, y)
 148
 149 #ifndef reg_EAX
 150 #define EAX (env->regs[R_EAX])
 151 #endif
 152 #ifndef reg_ECX
 153 #define ECX (env->regs[R_ECX])
 154 #endif
 155 #ifndef reg_EDX
 156 #define EDX (env->regs[R_EDX])
 157 #endif
 158 #ifndef reg_EBX
 159 #define EBX (env->regs[R_EBX])
 160 #endif
 161 #ifndef reg_ESP
 162 #define ESP (env->regs[R_ESP])
 163 #endif
 164 #ifndef reg_EBP
 165 #define EBP (env->regs[R_EBP])
 166 #endif
 167 #ifndef reg_ESI
 168 #define ESI (env->regs[R_ESI])
 169 #endif
 170 #ifndef reg_EDI
 171 #define EDI (env->regs[R_EDI])
 172 #endif
 173 #define EIP  (env->eip)
 174 #define DF  (env->df)
 175
 176 #define CC_SRC (env->cc_src)
 177 #define CC_DST (env->cc_dst)
 178 #define CC_OP  (env->cc_op)
 179
 180 /* float macros */
 181 #define FT0    (env->ft0)
 182 #define ST0    (env->fpregs[env->fpstt])
 183 #define ST(n)  (env->fpregs[(env->fpstt + (n)) & 7])
 184 #define ST1    ST(1)
 185
 186 #ifdef USE_FP_CONVERT
 187 #define FP_CONVERT  (env->fp_convert)
 188 #endif
 189
 190 #ifdef __alpha__
 191 /* Suggested by Richard Henderson. This will result in code like
 192         ldah $0,__op_param1($29)        !gprelhigh
 193         lda $0,__op_param1($0)          !gprellow
 194    We can then conveniently change $29 to $31 and adapt the offsets to
 195    emit the appropriate constant.  */
 196 extern int __op_param1 __attribute__((visibility("hidden")));
 197 extern int __op_param2 __attribute__((visibility("hidden")));
 198 extern int __op_param3 __attribute__((visibility("hidden")));
 199 #define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; })
 200 #define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; })
 201 #define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; })
 202 #else
 203 extern int __op_param1, __op_param2, __op_param3;
 204 #define PARAM1 ((long)(&__op_param1))
 205 #define PARAM2 ((long)(&__op_param2))
 206 #define PARAM3 ((long)(&__op_param3))
 207 #endif
 208
 209 #include "cpu-i386.h"
 210
 211 typedef struct CCTable {
 212     int (*compute_all)(void); /* return all the flags */
 213     int (*compute_c)(void);  /* return the C flag */
 214 } CCTable;
 215
 216 extern CCTable cc_table[];
 217
 218 void load_seg(int seg_reg, int selector);
 219 void cpu_lock(void);
 220 void cpu_unlock(void);
 221 void raise_exception_err(int exception_index, int error_code);
 222 void raise_exception(int exception_index);
 223
 224 void OPPROTO op_movl_eflags_T0(void);
 225 void OPPROTO op_movl_T0_eflags(void);