*/
#include "exec-i386.h"
-/* NOTE: data are not static to force relocation generation by GCC */
-
-uint8_t parity_table[256] = {
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- CC_P, 0, 0, CC_P, 0, CC_P, CC_P, 0,
- 0, CC_P, CC_P, 0, CC_P, 0, 0, CC_P,
-};
-
-/* modulo 17 table */
-const uint8_t rclw_table[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 9,10,11,12,13,14,15,
- 16, 0, 1, 2, 3, 4, 5, 6,
- 7, 8, 9,10,11,12,13,14,
-};
-
-/* modulo 9 table */
-const uint8_t rclb_table[32] = {
- 0, 1, 2, 3, 4, 5, 6, 7,
- 8, 0, 1, 2, 3, 4, 5, 6,
- 7, 8, 0, 1, 2, 3, 4, 5,
- 6, 7, 8, 0, 1, 2, 3, 4,
-};
-
-#ifdef USE_X86LDOUBLE
-/* an array of Intel 80-bit FP constants, to be loaded via integer ops */
-typedef unsigned short f15ld[5];
-const f15ld f15rk[] =
-{
-/*0*/ {0x0000,0x0000,0x0000,0x0000,0x0000},
-/*1*/ {0x0000,0x0000,0x0000,0x8000,0x3fff},
-/*pi*/ {0xc235,0x2168,0xdaa2,0xc90f,0x4000},
-/*lg2*/ {0xf799,0xfbcf,0x9a84,0x9a20,0x3ffd},
-/*ln2*/ {0x79ac,0xd1cf,0x17f7,0xb172,0x3ffe},
-/*l2e*/ {0xf0bc,0x5c17,0x3b29,0xb8aa,0x3fff},
-/*l2t*/ {0x8afe,0xcd1b,0x784b,0xd49a,0x4000}
-};
-#else
-/* the same, 64-bit version */
-typedef unsigned short f15ld[4];
-const f15ld f15rk[] =
-{
-#ifndef WORDS_BIGENDIAN
-/*0*/ {0x0000,0x0000,0x0000,0x0000},
-/*1*/ {0x0000,0x0000,0x0000,0x3ff0},
-/*pi*/ {0x2d18,0x5444,0x21fb,0x4009},
-/*lg2*/ {0x79ff,0x509f,0x4413,0x3fd3},
-/*ln2*/ {0x39ef,0xfefa,0x2e42,0x3fe6},
-/*l2e*/ {0x82fe,0x652b,0x1547,0x3ff7},
-/*l2t*/ {0xa371,0x0979,0x934f,0x400a}
-#else
-/*0*/ {0x0000,0x0000,0x0000,0x0000},
-/*1*/ {0x3ff0,0x0000,0x0000,0x0000},
-/*pi*/ {0x4009,0x21fb,0x5444,0x2d18},
-/*lg2*/ {0x3fd3,0x4413,0x509f,0x79ff},
-/*ln2*/ {0x3fe6,0x2e42,0xfefa,0x39ef},
-/*l2e*/ {0x3ff7,0x1547,0x652b,0x82fe},
-/*l2t*/ {0x400a,0x934f,0x0979,0xa371}
-#endif
-};
-#endif
-
/* n must be a constant to be efficient */
static inline int lshift(int x, int n)
{
/* operations with flags */
-void OPPROTO op_addl_T0_T1_cc(void)
+/* update flags with T0 and T1 (add/sub case) */
+void OPPROTO op_update2_cc(void)
{
- CC_SRC = T0;
- T0 += T1;
+ CC_SRC = T1;
CC_DST = T0;
}
-void OPPROTO op_orl_T0_T1_cc(void)
+/* update flags with T0 (logic operation case) */
+void OPPROTO op_update1_cc(void)
{
- T0 |= T1;
CC_DST = T0;
}
-void OPPROTO op_andl_T0_T1_cc(void)
+void OPPROTO op_update_neg_cc(void)
{
- T0 &= T1;
- CC_DST = T0;
-}
-
-void OPPROTO op_subl_T0_T1_cc(void)
-{
- CC_SRC = T0;
- T0 -= T1;
- CC_DST = T0;
-}
-
-void OPPROTO op_xorl_T0_T1_cc(void)
-{
- T0 ^= T1;
+ CC_SRC = -T0;
CC_DST = T0;
}
void OPPROTO op_cmpl_T0_T1_cc(void)
{
- CC_SRC = T0;
+ CC_SRC = T1;
CC_DST = T0 - T1;
}
-void OPPROTO op_negl_T0_cc(void)
-{
- CC_SRC = 0;
- T0 = -T0;
- CC_DST = T0;
-}
-
-void OPPROTO op_incl_T0_cc(void)
-{
- CC_SRC = cc_table[CC_OP].compute_c();
- T0++;
- CC_DST = T0;
-}
-
-void OPPROTO op_decl_T0_cc(void)
+void OPPROTO op_update_inc_cc(void)
{
CC_SRC = cc_table[CC_OP].compute_c();
- T0--;
CC_DST = T0;
}
/* division, flags are undefined */
/* XXX: add exceptions for overflow */
+
void OPPROTO op_divb_AL_T0(void)
{
unsigned int num, den, q, r;
EDX = (EDX & 0xffff0000) | r;
}
-#ifdef BUGGY_GCC_DIV64
-/* gcc 2.95.4 on PowerPC does not seem to like using __udivdi3, so we
- call it from another function */
-uint32_t div64(uint32_t *q_ptr, uint64_t num, uint32_t den)
-{
- *q_ptr = num / den;
- return num % den;
-}
-
-int32_t idiv64(int32_t *q_ptr, int64_t num, int32_t den)
-{
- *q_ptr = num / den;
- return num % den;
-}
-#endif
-
void OPPROTO op_divl_EAX_T0(void)
{
- unsigned int den, q, r;
- uint64_t num;
-
- num = EAX | ((uint64_t)EDX << 32);
- den = T0;
- if (den == 0) {
- EIP = PARAM1;
- raise_exception(EXCP00_DIVZ);
- }
-#ifdef BUGGY_GCC_DIV64
- r = div64(&q, num, den);
-#else
- q = (num / den);
- r = (num % den);
-#endif
- EAX = q;
- EDX = r;
+ helper_divl_EAX_T0(PARAM1);
}
void OPPROTO op_idivl_EAX_T0(void)
{
- int den, q, r;
- int64_t num;
-
- num = EAX | ((uint64_t)EDX << 32);
- den = T0;
- if (den == 0) {
- EIP = PARAM1;
- raise_exception(EXCP00_DIVZ);
- }
-#ifdef BUGGY_GCC_DIV64
- r = idiv64(&q, num, den);
-#else
- q = (num / den);
- r = (num % den);
-#endif
- EAX = q;
- EDX = r;
+ helper_idivl_EAX_T0(PARAM1);
}
/* constant load & misc op */
T0 = T0 & 0xffff;
}
+void OPPROTO op_andl_T0_im(void)
+{
+ T0 = T0 & PARAM1;
+}
+
void OPPROTO op_movl_T0_T1(void)
{
T0 = T1;
EIP = PARAM1;
}
+void OPPROTO op_hlt(void)
+{
+ env->exception_index = EXCP_HLT;
+ cpu_loop_exit();
+}
+
void OPPROTO op_raise_interrupt(void)
{
int intno;
void OPPROTO op_cmpxchg8b(void)
{
- uint64_t d;
- int eflags;
-
- eflags = cc_table[CC_OP].compute_all();
- d = ldq((uint8_t *)A0);
- if (d == (((uint64_t)EDX << 32) | EAX)) {
- stq((uint8_t *)A0, ((uint64_t)ECX << 32) | EBX);
- eflags |= CC_Z;
- } else {
- EDX = d >> 32;
- EAX = d;
- eflags &= ~CC_Z;
- }
- CC_SRC = eflags;
- FORCE_RET();
+ helper_cmpxchg8b();
}
-#if defined(__powerpc__)
-
-/* on PowerPC we patch the jump instruction directly */
-#define JUMP_TB(tbparam, n, eip)\
-do {\
- static void __attribute__((unused)) *__op_label ## n = &&label ## n;\
- asm volatile ("b %0" : : "i" (&__op_jmp ## n));\
-label ## n:\
- T0 = (long)(tbparam) + (n);\
- EIP = eip;\
-} while (0)
-
-#else
-
-/* jump to next block operations (more portable code, does not need
- cache flushing, but slower because of indirect jump) */
-#define JUMP_TB(tbparam, n, eip)\
-do {\
- static void __attribute__((unused)) *__op_label ## n = &&label ## n;\
- goto *(void *)(((TranslationBlock *)tbparam)->tb_next[n]);\
-label ## n:\
- T0 = (long)(tbparam) + (n);\
- EIP = eip;\
-} while (0)
-
-#endif
-
void OPPROTO op_jmp_tb_next(void)
{
JUMP_TB(PARAM1, 0, PARAM2);
{
uint32_t offset;
offset = ESP - 4;
- stl(env->seg_cache[R_SS].base + offset, T0);
+ stl(env->segs[R_SS].base + offset, T0);
/* modify ESP after to handle exceptions correctly */
ESP = offset;
}
{
uint32_t offset;
offset = ESP - 2;
- stw(env->seg_cache[R_SS].base + offset, T0);
+ stw(env->segs[R_SS].base + offset, T0);
/* modify ESP after to handle exceptions correctly */
ESP = offset;
}
{
uint32_t offset;
offset = (ESP - 4) & 0xffff;
- stl(env->seg_cache[R_SS].base + offset, T0);
+ stl(env->segs[R_SS].base + offset, T0);
/* modify ESP after to handle exceptions correctly */
ESP = (ESP & ~0xffff) | offset;
}
{
uint32_t offset;
offset = (ESP - 2) & 0xffff;
- stw(env->seg_cache[R_SS].base + offset, T0);
+ stw(env->segs[R_SS].base + offset, T0);
/* modify ESP after to handle exceptions correctly */
ESP = (ESP & ~0xffff) | offset;
}
void op_popl_ss32_T0(void)
{
- T0 = ldl(env->seg_cache[R_SS].base + ESP);
+ T0 = ldl(env->segs[R_SS].base + ESP);
}
void op_popw_ss32_T0(void)
{
- T0 = lduw(env->seg_cache[R_SS].base + ESP);
+ T0 = lduw(env->segs[R_SS].base + ESP);
}
void op_popl_ss16_T0(void)
{
- T0 = ldl(env->seg_cache[R_SS].base + (ESP & 0xffff));
+ T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff));
}
void op_popw_ss16_T0(void)
{
- T0 = lduw(env->seg_cache[R_SS].base + (ESP & 0xffff));
+ T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff));
}
void op_addl_ESP_4(void)
ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff);
}
-/* rdtsc */
-#ifndef __i386__
-uint64_t emu_time;
-#endif
-
void OPPROTO op_rdtsc(void)
{
- uint64_t val;
-#ifdef __i386__
- asm("rdtsc" : "=A" (val));
-#else
- /* better than nothing: the time increases */
- val = emu_time++;
-#endif
- EAX = val;
- EDX = val >> 32;
+ helper_rdtsc();
}
void OPPROTO op_cpuid(void)
void OPPROTO op_movl_seg_T0_vm(void)
{
int selector;
+ SegmentCache *sc;
selector = T0 & 0xffff;
/* env->segs[] access */
- *(uint32_t *)((char *)env + PARAM1) = selector;
- /* env->seg_cache[] access */
- ((SegmentCache *)((char *)env + PARAM2))->base = (void *)(selector << 4);
+ sc = (SegmentCache *)((char *)env + PARAM1);
+ sc->selector = selector;
+ sc->base = (void *)(selector << 4);
}
void OPPROTO op_movl_T0_seg(void)
{
- T0 = env->segs[PARAM1];
+ T0 = env->segs[PARAM1].selector;
}
void OPPROTO op_movl_A0_seg(void)
helper_lar();
}
+/* T0: segment, T1:eip */
+void OPPROTO op_ljmp_T0_T1(void)
+{
+ jmp_seg(T0 & 0xffff, T1);
+}
+
+void OPPROTO op_iret_protected(void)
+{
+ helper_iret_protected(PARAM1);
+}
+
+void OPPROTO op_lldt_T0(void)
+{
+ helper_lldt_T0();
+}
+
+void OPPROTO op_ltr_T0(void)
+{
+ helper_ltr_T0();
+}
+
+/* CR registers access */
+void OPPROTO op_movl_crN_T0(void)
+{
+ helper_movl_crN_T0(PARAM1);
+}
+
+/* DR registers access */
+void OPPROTO op_movl_drN_T0(void)
+{
+ helper_movl_drN_T0(PARAM1);
+}
+
+void OPPROTO op_lmsw_T0(void)
+{
+ /* only 4 lower bits of CR0 are modified */
+ T0 = (env->cr[0] & ~0xf) | (T0 & 0xf);
+ helper_movl_crN_T0(0);
+}
+
+void OPPROTO op_invlpg_A0(void)
+{
+ helper_invlpg(A0);
+}
+
+void OPPROTO op_movl_T0_env(void)
+{
+ T0 = *(uint32_t *)((char *)env + PARAM1);
+}
+
+void OPPROTO op_movl_env_T0(void)
+{
+ *(uint32_t *)((char *)env + PARAM1) = T0;
+}
+
+void OPPROTO op_movl_env_T1(void)
+{
+ *(uint32_t *)((char *)env + PARAM1) = T1;
+}
+
+void OPPROTO op_clts(void)
+{
+ env->cr[0] &= ~CR0_TS_MASK;
+}
+
/* flags handling */
/* slow jumps cases : in order to avoid calling a function with a
CC_OP = PARAM1;
}
-#define FL_UPDATE_MASK32 (TF_MASK | AC_MASK | ID_MASK)
-#define FL_UPDATE_MASK16 (TF_MASK)
+#define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff)
void OPPROTO op_movl_eflags_T0(void)
{
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
DF = 1 - (2 * ((eflags >> 10) & 1));
/* we also update some system flags as in user mode */
- env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | (eflags & FL_UPDATE_MASK32);
+ env->eflags = (env->eflags & ~FL_UPDATE_MASK32) |
+ (eflags & FL_UPDATE_MASK32);
}
void OPPROTO op_movw_eflags_T0(void)
CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
DF = 1 - (2 * ((eflags >> 10) & 1));
/* we also update some system flags as in user mode */
- env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | (eflags & FL_UPDATE_MASK16);
+ env->eflags = (env->eflags & ~FL_UPDATE_MASK16) |
+ (eflags & FL_UPDATE_MASK16);
+}
+
+void OPPROTO op_movl_eflags_T0_cpl0(void)
+{
+ load_eflags(T0, FL_UPDATE_CPL0_MASK);
+}
+
+void OPPROTO op_movw_eflags_T0_cpl0(void)
+{
+ load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff);
}
#if 0
void OPPROTO op_fsts_ST0_A0(void)
{
#ifdef USE_FP_CONVERT
- FP_CONVERT.d = ST0;
+ FP_CONVERT.f = (float)ST0;
stfl((void *)A0, FP_CONVERT.f);
#else
stfl((void *)A0, (float)ST0);
d = ST0;
val = lrint(d);
+ if (val != (int16_t)val)
+ val = -32768;
stw((void *)A0, val);
}
void OPPROTO op_fld1_ST0(void)
{
- ST0 = *(CPU86_LDouble *)&f15rk[1];
+ ST0 = f15rk[1];
}
void OPPROTO op_fldl2t_ST0(void)
{
- ST0 = *(CPU86_LDouble *)&f15rk[6];
+ ST0 = f15rk[6];
}
void OPPROTO op_fldl2e_ST0(void)
{
- ST0 = *(CPU86_LDouble *)&f15rk[5];
+ ST0 = f15rk[5];
}
void OPPROTO op_fldpi_ST0(void)
{
- ST0 = *(CPU86_LDouble *)&f15rk[2];
+ ST0 = f15rk[2];
}
void OPPROTO op_fldlg2_ST0(void)
{
- ST0 = *(CPU86_LDouble *)&f15rk[3];
+ ST0 = f15rk[3];
}
void OPPROTO op_fldln2_ST0(void)
{
- ST0 = *(CPU86_LDouble *)&f15rk[4];
+ ST0 = f15rk[4];
}
void OPPROTO op_fldz_ST0(void)
{
- ST0 = *(CPU86_LDouble *)&f15rk[0];
+ ST0 = f15rk[0];
}
void OPPROTO op_fldz_FT0(void)
{
- ST0 = *(CPU86_LDouble *)&f15rk[0];
+ ST0 = f15rk[0];
}
/* associated heplers to reduce generated code length and to simplify
projects / qemu / blobdiff