diff options
Diffstat (limited to 'op-i386.c')
| -rw-r--r-- | op-i386.c | 241 |
1 files changed, 134 insertions, 107 deletions
@@ -464,18 +464,43 @@ void OPPROTO op_idivl_EAX_T0(void) EDX = r; } -/* constant load */ +/* constant load & misc op */ void OPPROTO op_movl_T0_im(void) { T0 = PARAM1; } +void OPPROTO op_addl_T0_im(void) +{ + T0 += PARAM1; +} + +void OPPROTO op_andl_T0_ffff(void) +{ + T0 = T0 & 0xffff; +} + +void OPPROTO op_movl_T0_T1(void) +{ + T0 = T1; +} + void OPPROTO op_movl_T1_im(void) { T1 = PARAM1; } +void OPPROTO op_addl_T1_im(void) +{ + T1 += PARAM1; +} + +void OPPROTO op_movl_T1_A0(void) +{ + T1 = A0; +} + void OPPROTO op_movl_A0_im(void) { A0 = PARAM1; @@ -574,23 +599,23 @@ void OPPROTO op_add_bitl_A0_T1(void) void OPPROTO op_jmp_T0(void) { - PC = T0; + EIP = T0; } void OPPROTO op_jmp_im(void) { - PC = PARAM1; + EIP = PARAM1; } void OPPROTO op_int_im(void) { - PC = PARAM1; + EIP = PARAM1; raise_exception(EXCP0D_GPF); } void OPPROTO op_int3(void) { - PC = PARAM1; + EIP = PARAM1; raise_exception(EXCP03_INT3); } @@ -599,10 +624,10 @@ void OPPROTO op_into(void) int eflags; eflags = cc_table[CC_OP].compute_all(); if (eflags & CC_O) { - PC = PARAM1; + EIP = PARAM1; raise_exception(EXCP04_INTO); } else { - PC = PARAM2; + EIP = PARAM2; } } @@ -665,7 +690,6 @@ void OPPROTO op_movswl_DX_AX(void) } /* push/pop */ -/* XXX: add 16 bit operand/16 bit seg variants */ void op_pushl_T0(void) { @@ -676,107 +700,110 @@ void op_pushl_T0(void) ESP = offset; } -void op_pushl_T1(void) +void op_pushw_T0(void) +{ + uint32_t offset; + offset = ESP - 2; + stw((void *)offset, T0); + /* modify ESP after to handle exceptions correctly */ + ESP = offset; +} + +void op_pushl_ss32_T0(void) { uint32_t offset; offset = ESP - 4; - stl((void *)offset, T1); + stl(env->seg_cache[R_SS].base + offset, T0); /* modify ESP after to handle exceptions correctly */ ESP = offset; } +void op_pushw_ss32_T0(void) +{ + uint32_t offset; + offset = ESP - 2; + stw(env->seg_cache[R_SS].base + offset, T0); + /* modify ESP after to handle exceptions correctly */ + ESP = offset; +} + +void op_pushl_ss16_T0(void) +{ + uint32_t offset; + offset = (ESP - 4) & 0xffff; + stl(env->seg_cache[R_SS].base + offset, T0); + /* modify ESP after to handle exceptions correctly */ + ESP = (ESP & ~0xffff) | offset; +} + +void op_pushw_ss16_T0(void) +{ + uint32_t offset; + offset = (ESP - 2) & 0xffff; + stw(env->seg_cache[R_SS].base + offset, T0); + /* modify ESP after to handle exceptions correctly */ + ESP = (ESP & ~0xffff) | offset; +} + +/* NOTE: ESP update is done after */ void op_popl_T0(void) { T0 = ldl((void *)ESP); +} + +void op_popw_T0(void) +{ + T0 = lduw((void *)ESP); +} + +void op_popl_ss32_T0(void) +{ + T0 = ldl(env->seg_cache[R_SS].base + ESP); +} + +void op_popw_ss32_T0(void) +{ + T0 = lduw(env->seg_cache[R_SS].base + ESP); +} + +void op_popl_ss16_T0(void) +{ + T0 = ldl(env->seg_cache[R_SS].base + (ESP & 0xffff)); +} + +void op_popw_ss16_T0(void) +{ + T0 = lduw(env->seg_cache[R_SS].base + (ESP & 0xffff)); +} + +void op_addl_ESP_4(void) +{ ESP += 4; } +void op_addl_ESP_2(void) +{ + ESP += 2; +} + +void op_addw_ESP_4(void) +{ + ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff); +} + +void op_addw_ESP_2(void) +{ + ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff); +} + void op_addl_ESP_im(void) { ESP += PARAM1; } -void op_pushal(void) -{ - uint8_t *sp; - sp = (void *)(ESP - 32); - stl(sp, EDI); - stl(sp + 4, ESI); - stl(sp + 8, EBP); - stl(sp + 12, ESP); - stl(sp + 16, EBX); - stl(sp + 20, EDX); - stl(sp + 24, ECX); - stl(sp + 28, EAX); - ESP = (unsigned long)sp; -} - -void op_pushaw(void) -{ - uint8_t *sp; - sp = (void *)(ESP - 16); - stw(sp, EDI); - stw(sp + 2, ESI); - stw(sp + 4, EBP); - stw(sp + 6, ESP); - stw(sp + 8, EBX); - stw(sp + 10, EDX); - stw(sp + 12, ECX); - stw(sp + 14, EAX); - ESP = (unsigned long)sp; -} - -void op_popal(void) -{ - uint8_t *sp; - sp = (void *)ESP; - EDI = ldl(sp); - ESI = ldl(sp + 4); - EBP = ldl(sp + 8); - EBX = ldl(sp + 16); - EDX = ldl(sp + 20); - ECX = ldl(sp + 24); - EAX = ldl(sp + 28); - ESP = (unsigned long)sp + 32; -} - -void op_popaw(void) -{ - uint8_t *sp; - sp = (void *)ESP; - EDI = ldl(sp); - ESI = ldl(sp + 2); - EBP = ldl(sp + 4); - EBX = ldl(sp + 8); - EDX = ldl(sp + 10); - ECX = ldl(sp + 12); - EAX = ldl(sp + 14); - ESP = (unsigned long)sp + 16; -} - -void op_enterl(void) -{ - unsigned int bp, frame_temp, level; - uint8_t *sp; - - sp = (void *)ESP; - bp = EBP; - sp -= 4; - stl(sp, bp); - frame_temp = (unsigned int)sp; - level = PARAM2; - if (level) { - while (level--) { - bp -= 4; - sp -= 4; - stl(sp, bp); - } - sp -= 4; - stl(sp, frame_temp); - } - EBP = frame_temp; - sp -= PARAM1; - ESP = (int)sp; +void op_addw_ESP_im(void) +{ + ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff); } /* rdtsc */ @@ -988,18 +1015,18 @@ void OPPROTO op_jo_cc(void) int eflags; eflags = cc_table[CC_OP].compute_all(); if (eflags & CC_O) - PC = PARAM1; + EIP = PARAM1; else - PC = PARAM2; + EIP = PARAM2; FORCE_RET(); } void OPPROTO op_jb_cc(void) { if (cc_table[CC_OP].compute_c()) - PC = PARAM1; + EIP = PARAM1; else - PC = PARAM2; + EIP = PARAM2; FORCE_RET(); } @@ -1008,9 +1035,9 @@ void OPPROTO op_jz_cc(void) int eflags; eflags = cc_table[CC_OP].compute_all(); if (eflags & CC_Z) - PC = PARAM1; + EIP = PARAM1; else - PC = PARAM2; + EIP = PARAM2; FORCE_RET(); } @@ -1019,9 +1046,9 @@ void OPPROTO op_jbe_cc(void) int eflags; eflags = cc_table[CC_OP].compute_all(); if (eflags & (CC_Z | CC_C)) - PC = PARAM1; + EIP = PARAM1; else - PC = PARAM2; + EIP = PARAM2; FORCE_RET(); } @@ -1030,9 +1057,9 @@ void OPPROTO op_js_cc(void) int eflags; eflags = cc_table[CC_OP].compute_all(); if (eflags & CC_S) - PC = PARAM1; + EIP = PARAM1; else - PC = PARAM2; + EIP = PARAM2; FORCE_RET(); } @@ -1041,9 +1068,9 @@ void OPPROTO op_jp_cc(void) int eflags; eflags = cc_table[CC_OP].compute_all(); if (eflags & CC_P) - PC = PARAM1; + EIP = PARAM1; else - PC = PARAM2; + EIP = PARAM2; FORCE_RET(); } @@ -1052,9 +1079,9 @@ void OPPROTO op_jl_cc(void) int eflags; eflags = cc_table[CC_OP].compute_all(); if ((eflags ^ (eflags >> 4)) & 0x80) - PC = PARAM1; + EIP = PARAM1; else - PC = PARAM2; + EIP = PARAM2; FORCE_RET(); } @@ -1063,9 +1090,9 @@ void OPPROTO op_jle_cc(void) int eflags; eflags = cc_table[CC_OP].compute_all(); if (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) - PC = PARAM1; + EIP = PARAM1; else - PC = PARAM2; + EIP = PARAM2; FORCE_RET(); } |