diff options
Diffstat (limited to 'src/emu/cpu/i386/i386op32.c')
-rw-r--r-- | src/emu/cpu/i386/i386op32.c | 2974 |
1 files changed, 2974 insertions, 0 deletions
diff --git a/src/emu/cpu/i386/i386op32.c b/src/emu/cpu/i386/i386op32.c new file mode 100644 index 00000000000..a5eee962959 --- /dev/null +++ b/src/emu/cpu/i386/i386op32.c @@ -0,0 +1,2974 @@ +static UINT32 I386OP(shift_rotate32)(UINT8 modrm, UINT32 value, UINT8 shift) +{ + UINT32 dst, src; + dst = value; + src = value; + + if( shift == 0 ) { + CYCLES_RM(modrm, 3, 7); + } else if( shift == 1 ) { + + switch( (modrm >> 3) & 0x7 ) + { + case 0: /* ROL rm32, 1 */ + I.CF = (src & 0x80000000) ? 1 : 0; + dst = (src << 1) + I.CF; + I.OF = ((src ^ dst) & 0x80000000) ? 1 : 0; + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + case 1: /* ROR rm32, 1 */ + I.CF = (src & 0x1) ? 1 : 0; + dst = (I.CF << 31) | (src >> 1); + I.OF = ((src ^ dst) & 0x80000000) ? 1 : 0; + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + case 2: /* RCL rm32, 1 */ + dst = (src << 1) + I.CF; + I.CF = (src & 0x80000000) ? 1 : 0; + I.OF = ((src ^ dst) & 0x80000000) ? 1 : 0; + CYCLES_RM(modrm, CYCLES_ROTATE_CARRY_REG, CYCLES_ROTATE_CARRY_MEM); + break; + case 3: /* RCR rm32, 1 */ + dst = (I.CF << 31) | (src >> 1); + I.CF = src & 0x1; + I.OF = ((src ^ dst) & 0x80000000) ? 1 : 0; + CYCLES_RM(modrm, CYCLES_ROTATE_CARRY_REG, CYCLES_ROTATE_CARRY_MEM); + break; + case 4: /* SHL/SAL rm32, 1 */ + case 6: + dst = src << 1; + I.CF = (src & 0x80000000) ? 1 : 0; + I.OF = (((I.CF << 31) ^ dst) & 0x80000000) ? 1 : 0; + SetSZPF32(dst); + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + case 5: /* SHR rm32, 1 */ + dst = src >> 1; + I.CF = src & 0x1; + I.OF = (src & 0x80000000) ? 1 : 0; + SetSZPF32(dst); + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + case 7: /* SAR rm32, 1 */ + dst = (INT32)(src) >> 1; + I.CF = src & 0x1; + I.OF = 0; + SetSZPF32(dst); + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + } + + } else { + + switch( (modrm >> 3) & 0x7 ) + { + case 0: /* ROL rm32, i8 */ + dst = ((src & ((UINT32)0xffffffff >> shift)) << shift) | + ((src & ((UINT32)0xffffffff << (32-shift))) >> (32-shift)); + I.CF = (src >> (32-shift)) & 0x1; + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + case 1: /* ROR rm32, i8 */ + dst = ((src & ((UINT32)0xffffffff << shift)) >> shift) | + ((src & ((UINT32)0xffffffff >> (32-shift))) << (32-shift)); + I.CF = (src >> (shift-1)) & 0x1; + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + case 2: /* RCL rm32, i8 */ + dst = ((src & ((UINT32)0xffffffff >> shift)) << shift) | + ((src & ((UINT32)0xffffffff << (33-shift))) >> (33-shift)) | + (I.CF << (shift-1)); + I.CF = (src >> (32-shift)) & 0x1; + CYCLES_RM(modrm, CYCLES_ROTATE_CARRY_REG, CYCLES_ROTATE_CARRY_MEM); + break; + case 3: /* RCR rm32, i8 */ + dst = ((src & ((UINT32)0xffffffff << shift)) >> shift) | + ((src & ((UINT32)0xffffffff >> (32-shift))) << (33-shift)) | + (I.CF << (32-shift)); + I.CF = (src >> (shift-1)) & 0x1; + CYCLES_RM(modrm, CYCLES_ROTATE_CARRY_REG, CYCLES_ROTATE_CARRY_MEM); + break; + case 4: /* SHL/SAL rm32, i8 */ + case 6: + dst = src << shift; + I.CF = (src & (1 << (32-shift))) ? 1 : 0; + SetSZPF32(dst); + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + case 5: /* SHR rm32, i8 */ + dst = src >> shift; + I.CF = (src & (1 << (shift-1))) ? 1 : 0; + SetSZPF32(dst); + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + case 7: /* SAR rm32, i8 */ + dst = (INT32)src >> shift; + I.CF = (src & (1 << (shift-1))) ? 1 : 0; + SetSZPF32(dst); + CYCLES_RM(modrm, CYCLES_ROTATE_REG, CYCLES_ROTATE_MEM); + break; + } + + } + return dst; +} + + + +static void I386OP(adc_rm32_r32)(void) // Opcode 0x11 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + dst = LOAD_RM32(modrm); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + dst = READ32(ea); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } +} + +static void I386OP(adc_r32_rm32)(void) // Opcode 0x13 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + dst = LOAD_REG32(modrm); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + dst = LOAD_REG32(modrm); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_MEM_REG); + } +} + +static void I386OP(adc_eax_i32)(void) // Opcode 0x15 +{ + UINT32 src, dst; + src = FETCH32(); + dst = REG32(EAX); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + REG32(EAX) = dst; + CYCLES(CYCLES_ALU_IMM_ACC); +} + +static void I386OP(add_rm32_r32)(void) // Opcode 0x01 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + dst = LOAD_RM32(modrm); + dst = ADD32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + dst = READ32(ea); + dst = ADD32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } +} + +static void I386OP(add_r32_rm32)(void) // Opcode 0x03 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + dst = LOAD_REG32(modrm); + dst = ADD32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + dst = LOAD_REG32(modrm); + dst = ADD32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_MEM_REG); + } +} + +static void I386OP(add_eax_i32)(void) // Opcode 0x05 +{ + UINT32 src, dst; + src = FETCH32(); + dst = REG32(EAX); + dst = ADD32(dst, src); + REG32(EAX) = dst; + CYCLES(CYCLES_ALU_IMM_ACC); +} + +static void I386OP(and_rm32_r32)(void) // Opcode 0x21 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + dst = LOAD_RM32(modrm); + dst = AND32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + dst = READ32(ea); + dst = AND32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } +} + +static void I386OP(and_r32_rm32)(void) // Opcode 0x23 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + dst = LOAD_REG32(modrm); + dst = AND32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + dst = LOAD_REG32(modrm); + dst = AND32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_MEM_REG); + } +} + +static void I386OP(and_eax_i32)(void) // Opcode 0x25 +{ + UINT32 src, dst; + src = FETCH32(); + dst = REG32(EAX); + dst = AND32(dst, src); + REG32(EAX) = dst; + CYCLES(CYCLES_ALU_IMM_ACC); +} + +static void I386OP(bsf_r32_rm32)(void) // Opcode 0x0f bc +{ + UINT32 src, dst, temp; + UINT8 modrm = FETCH(); + + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + } + + dst = 0; + + if( src == 0 ) { + I.ZF = 1; + } else { + I.ZF = 0; + temp = 0; + while( (src & (1 << temp)) == 0 ) { + temp++; + dst = temp; + CYCLES(CYCLES_BSF); + } + } + CYCLES(CYCLES_BSF_BASE); + STORE_REG32(modrm, dst); +} + +static void I386OP(bsr_r32_rm32)(void) // Opcode 0x0f bd +{ + UINT32 src, dst, temp; + UINT8 modrm = FETCH(); + + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + } + + dst = 0; + + if( src == 0 ) { + I.ZF = 1; + } else { + I.ZF = 0; + temp = 31; + while( (src & (1 << temp)) == 0 ) { + temp--; + dst = temp; + CYCLES(CYCLES_BSR); + } + } + CYCLES(CYCLES_BSR_BASE); + STORE_REG32(modrm, dst); +} + +static void I386OP(bt_rm32_r32)(void) // Opcode 0x0f a3 +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 bit = LOAD_REG32(modrm); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + + CYCLES(CYCLES_BT_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 bit = LOAD_REG32(modrm); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + + CYCLES(CYCLES_BT_REG_MEM); + } +} + +static void I386OP(btc_rm32_r32)(void) // Opcode 0x0f bb +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 bit = LOAD_REG32(modrm); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst ^= (1 << bit); + + STORE_RM32(modrm, dst); + CYCLES(CYCLES_BTC_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 bit = LOAD_REG32(modrm); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst ^= (1 << bit); + + WRITE32(ea, dst); + CYCLES(CYCLES_BTC_REG_MEM); + } +} + +static void I386OP(btr_rm32_r32)(void) // Opcode 0x0f b3 +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 bit = LOAD_REG32(modrm); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst &= ~(1 << bit); + + STORE_RM32(modrm, dst); + CYCLES(CYCLES_BTR_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 bit = LOAD_REG32(modrm); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst &= ~(1 << bit); + + WRITE32(ea, dst); + CYCLES(CYCLES_BTR_REG_MEM); + } +} + +static void I386OP(bts_rm32_r32)(void) // Opcode 0x0f ab +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 bit = LOAD_REG32(modrm); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst |= (1 << bit); + + STORE_RM32(modrm, dst); + CYCLES(CYCLES_BTS_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 bit = LOAD_REG32(modrm); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst |= (1 << bit); + + WRITE32(ea, dst); + CYCLES(CYCLES_BTS_REG_MEM); + } +} + +static void I386OP(call_abs32)(void) // Opcode 0x9a +{ + UINT32 offset = FETCH32(); + UINT16 ptr = FETCH16(); + + if( PROTECTED_MODE ) { + /* TODO */ + fatalerror("i386: call_abs32 in protected mode unimplemented"); + } else { + PUSH32( I.sreg[CS].selector ); + PUSH32( I.eip ); + I.sreg[CS].selector = ptr; + I.eip = offset; + i386_load_segment_descriptor(CS); + } + CYCLES(CYCLES_CALL_INTERSEG); + CHANGE_PC(I.eip); +} + +static void I386OP(call_rel32)(void) // Opcode 0xe8 +{ + INT32 disp = FETCH32(); + + PUSH32( I.eip ); + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_CALL); /* TODO: Timing = 7 + m */ +} + +static void I386OP(cdq)(void) // Opcode 0x99 +{ + if( REG32(EAX) & 0x80000000 ) { + REG32(EDX) = 0xffffffff; + } else { + REG32(EDX) = 0x00000000; + } + CYCLES(CYCLES_CWD); +} + +static void I386OP(cmp_rm32_r32)(void) // Opcode 0x39 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + dst = LOAD_RM32(modrm); + SUB32(dst, src); + CYCLES(CYCLES_CMP_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + dst = READ32(ea); + SUB32(dst, src); + CYCLES(CYCLES_CMP_REG_MEM); + } +} + +static void I386OP(cmp_r32_rm32)(void) // Opcode 0x3b +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + dst = LOAD_REG32(modrm); + SUB32(dst, src); + CYCLES(CYCLES_CMP_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + dst = LOAD_REG32(modrm); + SUB32(dst, src); + CYCLES(CYCLES_CMP_MEM_REG); + } +} + +static void I386OP(cmp_eax_i32)(void) // Opcode 0x3d +{ + UINT32 src, dst; + src = FETCH32(); + dst = REG32(EAX); + SUB32(dst, src); + CYCLES(CYCLES_CMP_IMM_ACC); +} + +static void I386OP(cmpsd)(void) // Opcode 0xa7 +{ + UINT32 eas, ead, src, dst; + if( I.segment_prefix ) { + eas = i386_translate( I.segment_override, I.address_size ? REG32(ESI) : REG16(SI) ); + } else { + eas = i386_translate( DS, I.address_size ? REG32(ESI) : REG16(SI) ); + } + ead = i386_translate( ES, I.address_size ? REG32(EDI) : REG16(DI) ); + src = READ32(eas); + dst = READ32(ead); + SUB32(dst, src); + BUMP_SI(4); + BUMP_DI(4); + CYCLES(CYCLES_CMPS); +} + +static void I386OP(cwde)(void) // Opcode 0x98 +{ + REG32(EAX) = (INT32)((INT16)REG16(AX)); + CYCLES(CYCLES_CBW); +} + +static void I386OP(dec_eax)(void) // Opcode 0x48 +{ + REG32(EAX) = DEC32( REG32(EAX) ); + CYCLES(CYCLES_DEC_REG); +} + +static void I386OP(dec_ecx)(void) // Opcode 0x49 +{ + REG32(ECX) = DEC32( REG32(ECX) ); + CYCLES(CYCLES_DEC_REG); +} + +static void I386OP(dec_edx)(void) // Opcode 0x4a +{ + REG32(EDX) = DEC32( REG32(EDX) ); + CYCLES(CYCLES_DEC_REG); +} + +static void I386OP(dec_ebx)(void) // Opcode 0x4b +{ + REG32(EBX) = DEC32( REG32(EBX) ); + CYCLES(CYCLES_DEC_REG); +} + +static void I386OP(dec_esp)(void) // Opcode 0x4c +{ + REG32(ESP) = DEC32( REG32(ESP) ); + CYCLES(CYCLES_DEC_REG); +} + +static void I386OP(dec_ebp)(void) // Opcode 0x4d +{ + REG32(EBP) = DEC32( REG32(EBP) ); + CYCLES(CYCLES_DEC_REG); +} + +static void I386OP(dec_esi)(void) // Opcode 0x4e +{ + REG32(ESI) = DEC32( REG32(ESI) ); + CYCLES(CYCLES_DEC_REG); +} + +static void I386OP(dec_edi)(void) // Opcode 0x4f +{ + REG32(EDI) = DEC32( REG32(EDI) ); + CYCLES(CYCLES_DEC_REG); +} + +static void I386OP(imul_r32_rm32)(void) // Opcode 0x0f af +{ + UINT8 modrm = FETCH(); + INT64 result; + INT64 src, dst; + if( modrm >= 0xc0 ) { + src = (INT64)(INT32)LOAD_RM32(modrm); + CYCLES(CYCLES_IMUL32_REG_REG); /* TODO: Correct multiply timing */ + } else { + UINT32 ea = GetEA(modrm); + src = (INT64)(INT32)READ32(ea); + CYCLES(CYCLES_IMUL32_REG_REG); /* TODO: Correct multiply timing */ + } + + dst = (INT64)(INT32)LOAD_REG32(modrm); + result = src * dst; + + STORE_REG32(modrm, (UINT32)result); + + I.CF = I.OF = !(result == (INT64)(INT32)result); +} + +static void I386OP(imul_r32_rm32_i32)(void) // Opcode 0x69 +{ + UINT8 modrm = FETCH(); + INT64 result; + INT64 src, dst; + if( modrm >= 0xc0 ) { + dst = (INT64)(INT32)LOAD_RM32(modrm); + CYCLES(CYCLES_IMUL32_REG_IMM_REG); /* TODO: Correct multiply timing */ + } else { + UINT32 ea = GetEA(modrm); + dst = (INT64)(INT32)READ32(ea); + CYCLES(CYCLES_IMUL32_MEM_IMM_REG); /* TODO: Correct multiply timing */ + } + + src = (INT64)(INT32)FETCH32(); + result = src * dst; + + STORE_REG32(modrm, (UINT32)result); + + I.CF = I.OF = !(result == (INT64)(INT32)result); +} + +static void I386OP(imul_r32_rm32_i8)(void) // Opcode 0x6b +{ + UINT8 modrm = FETCH(); + INT64 result; + INT64 src, dst; + if( modrm >= 0xc0 ) { + dst = (INT64)(INT32)LOAD_RM32(modrm); + CYCLES(CYCLES_IMUL32_REG_IMM_REG); /* TODO: Correct multiply timing */ + } else { + UINT32 ea = GetEA(modrm); + dst = (INT64)(INT32)READ32(ea); + CYCLES(CYCLES_IMUL32_MEM_IMM_REG); /* TODO: Correct multiply timing */ + } + + src = (INT64)(INT8)FETCH(); + result = src * dst; + + STORE_REG32(modrm, (UINT32)result); + + I.CF = I.OF = !(result == (INT64)(INT32)result); +} + +static void I386OP(in_eax_i8)(void) // Opcode 0xe5 +{ + UINT16 port = FETCH(); + UINT32 data = READPORT32(port); + REG32(EAX) = data; + CYCLES(CYCLES_IN_VAR); +} + +static void I386OP(in_eax_dx)(void) // Opcode 0xed +{ + UINT16 port = REG16(DX); + UINT32 data = READPORT32(port); + REG32(EAX) = data; + CYCLES(CYCLES_IN); +} + +static void I386OP(inc_eax)(void) // Opcode 0x40 +{ + REG32(EAX) = INC32( REG32(EAX) ); + CYCLES(CYCLES_INC_REG); +} + +static void I386OP(inc_ecx)(void) // Opcode 0x41 +{ + REG32(ECX) = INC32( REG32(ECX) ); + CYCLES(CYCLES_INC_REG); +} + +static void I386OP(inc_edx)(void) // Opcode 0x42 +{ + REG32(EDX) = INC32( REG32(EDX) ); + CYCLES(CYCLES_INC_REG); +} + +static void I386OP(inc_ebx)(void) // Opcode 0x43 +{ + REG32(EBX) = INC32( REG32(EBX) ); + CYCLES(CYCLES_INC_REG); +} + +static void I386OP(inc_esp)(void) // Opcode 0x44 +{ + REG32(ESP) = INC32( REG32(ESP) ); + CYCLES(CYCLES_INC_REG); +} + +static void I386OP(inc_ebp)(void) // Opcode 0x45 +{ + REG32(EBP) = INC32( REG32(EBP) ); + CYCLES(CYCLES_INC_REG); +} + +static void I386OP(inc_esi)(void) // Opcode 0x46 +{ + REG32(ESI) = INC32( REG32(ESI) ); + CYCLES(CYCLES_INC_REG); +} + +static void I386OP(inc_edi)(void) // Opcode 0x47 +{ + REG32(EDI) = INC32( REG32(EDI) ); + CYCLES(CYCLES_INC_REG); +} + +static void I386OP(iret32)(void) // Opcode 0xcf +{ + if( PROTECTED_MODE ) { + /* TODO: Virtual 8086-mode */ + /* TODO: Nested task */ + /* TODO: #SS(0) exception */ + /* TODO: All the protection-related stuff... */ + I.eip = POP32(); + I.sreg[CS].selector = POP32() & 0xffff; + set_flags( POP32() ); + i386_load_segment_descriptor(CS); + CHANGE_PC(I.eip); + } else { + /* TODO: #SS(0) exception */ + /* TODO: #GP(0) exception */ + I.eip = POP32(); + I.sreg[CS].selector = POP32() & 0xffff; + set_flags( POP32() ); + i386_load_segment_descriptor(CS); + CHANGE_PC(I.eip); + } + CYCLES(CYCLES_IRET); +} + +static void I386OP(ja_rel32)(void) // Opcode 0x0f 87 +{ + INT32 disp = FETCH32(); + if( I.CF == 0 && I.ZF == 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jbe_rel32)(void) // Opcode 0x0f 86 +{ + INT32 disp = FETCH32(); + if( I.CF != 0 || I.ZF != 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jc_rel32)(void) // Opcode 0x0f 82 +{ + INT32 disp = FETCH32(); + if( I.CF != 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jg_rel32)(void) // Opcode 0x0f 8f +{ + INT32 disp = FETCH32(); + if( I.ZF == 0 && (I.SF == I.OF) ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jge_rel32)(void) // Opcode 0x0f 8d +{ + INT32 disp = FETCH32(); + if( (I.SF == I.OF) ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jl_rel32)(void) // Opcode 0x0f 8c +{ + INT32 disp = FETCH32(); + if( (I.SF != I.OF) ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jle_rel32)(void) // Opcode 0x0f 8e +{ + INT32 disp = FETCH32(); + if( I.ZF != 0 || (I.SF != I.OF) ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jnc_rel32)(void) // Opcode 0x0f 83 +{ + INT32 disp = FETCH32(); + if( I.CF == 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jno_rel32)(void) // Opcode 0x0f 81 +{ + INT32 disp = FETCH32(); + if( I.OF == 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jnp_rel32)(void) // Opcode 0x0f 8b +{ + INT32 disp = FETCH32(); + if( I.PF == 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jns_rel32)(void) // Opcode 0x0f 89 +{ + INT32 disp = FETCH32(); + if( I.SF == 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jnz_rel32)(void) // Opcode 0x0f 85 +{ + INT32 disp = FETCH32(); + if( I.ZF == 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jo_rel32)(void) // Opcode 0x0f 80 +{ + INT32 disp = FETCH32(); + if( I.OF != 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jp_rel32)(void) // Opcode 0x0f 8a +{ + INT32 disp = FETCH32(); + if( I.PF != 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(js_rel32)(void) // Opcode 0x0f 88 +{ + INT32 disp = FETCH32(); + if( I.SF != 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jz_rel32)(void) // Opcode 0x0f 84 +{ + INT32 disp = FETCH32(); + if( I.ZF != 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCC_FULL_DISP); /* TODO: Timing = 7 + m */ + } else { + CYCLES(CYCLES_JCC_FULL_DISP_NOBRANCH); + } +} + +static void I386OP(jcxz32)(void) // Opcode 0xe3 +{ + INT8 disp = FETCH(); + if( REG32(ECX) == 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JCXZ); /* TODO: Timing = 9 + m */ + } else { + CYCLES(CYCLES_JCXZ_NOBRANCH); + } +} + +static void I386OP(jmp_rel32)(void) // Opcode 0xe9 +{ + UINT32 disp = FETCH32(); + /* TODO: Segment limit */ + I.eip += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_JMP); /* TODO: Timing = 7 + m */ +} + +static void I386OP(jmp_abs32)(void) // Opcode 0xea +{ + UINT32 address = FETCH32(); + UINT16 segment = FETCH16(); + + if( PROTECTED_MODE ) { + /* TODO: #GP */ + /* TODO: access rights, etc. */ + I.eip = address; + I.sreg[CS].selector = segment; + i386_load_segment_descriptor(CS); + CHANGE_PC(I.eip); + } else { + I.eip = address; + I.sreg[CS].selector = segment; + i386_load_segment_descriptor(CS); + CHANGE_PC(I.eip); + } + CYCLES(CYCLES_JMP_INTERSEG); +} + +static void I386OP(lea32)(void) // Opcode 0x8d +{ + UINT8 modrm = FETCH(); + UINT32 ea = GetNonTranslatedEA(modrm); + if (!I.address_size) + { + ea &= 0xffff; + } + STORE_REG32(modrm, ea); + CYCLES(CYCLES_LEA); +} + +static void I386OP(leave32)(void) // Opcode 0xc9 +{ + REG32(ESP) = REG32(EBP); + REG32(EBP) = POP32(); + CYCLES(CYCLES_LEAVE); +} + +static void I386OP(lodsd)(void) // Opcode 0xad +{ + UINT32 eas; + if( I.segment_prefix ) { + eas = i386_translate( I.segment_override, I.address_size ? REG32(ESI) : REG16(SI) ); + } else { + eas = i386_translate( DS, I.address_size ? REG32(ESI) : REG16(SI) ); + } + REG32(EAX) = READ32(eas); + BUMP_SI(4); + CYCLES(CYCLES_LODS); +} + +static void I386OP(loop32)(void) // Opcode 0xe2 +{ + INT8 disp = FETCH(); + REG32(ECX)--; + if( REG32(ECX) != 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + } + CYCLES(CYCLES_LOOP); /* TODO: Timing = 11 + m */ +} + +static void I386OP(loopne32)(void) // Opcode 0xe0 +{ + INT8 disp = FETCH(); + REG32(ECX)--; + if( REG32(ECX) != 0 && I.ZF == 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + } + CYCLES(CYCLES_LOOPNZ); /* TODO: Timing = 11 + m */ +} + +static void I386OP(loopz32)(void) // Opcode 0xe1 +{ + INT8 disp = FETCH(); + REG32(ECX)--; + if( REG32(ECX) != 0 && I.ZF != 0 ) { + I.eip += disp; + CHANGE_PC(I.eip); + } + CYCLES(CYCLES_LOOPZ); /* TODO: Timing = 11 + m */ +} + +static void I386OP(mov_rm32_r32)(void) // Opcode 0x89 +{ + UINT32 src; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + STORE_RM32(modrm, src); + CYCLES(CYCLES_MOV_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + WRITE32(ea, src); + CYCLES(CYCLES_MOV_REG_MEM); + } +} + +static void I386OP(mov_r32_rm32)(void) // Opcode 0x8b +{ + UINT32 src; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOV_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOV_MEM_REG); + } +} + +static void I386OP(mov_rm32_i32)(void) // Opcode 0xc7 +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 value = FETCH32(); + STORE_RM32(modrm, value); + CYCLES(CYCLES_MOV_IMM_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 value = FETCH32(); + WRITE32(ea, value); + CYCLES(CYCLES_MOV_IMM_MEM); + } +} + +static void I386OP(mov_eax_m32)(void) // Opcode 0xa1 +{ + UINT32 offset, ea; + if( I.address_size ) { + offset = FETCH32(); + } else { + offset = FETCH16(); + } + if( I.segment_prefix ) { + ea = i386_translate( I.segment_override, offset ); + } else { + ea = i386_translate( DS, offset ); + } + REG32(EAX) = READ32(ea); + CYCLES(CYCLES_MOV_MEM_ACC); +} + +static void I386OP(mov_m32_eax)(void) // Opcode 0xa3 +{ + UINT32 offset, ea; + if( I.address_size ) { + offset = FETCH32(); + } else { + offset = FETCH16(); + } + if( I.segment_prefix ) { + ea = i386_translate( I.segment_override, offset ); + } else { + ea = i386_translate( DS, offset ); + } + WRITE32( ea, REG32(EAX) ); + CYCLES(CYCLES_MOV_ACC_MEM); +} + +static void I386OP(mov_eax_i32)(void) // Opcode 0xb8 +{ + REG32(EAX) = FETCH32(); + CYCLES(CYCLES_MOV_IMM_REG); +} + +static void I386OP(mov_ecx_i32)(void) // Opcode 0xb9 +{ + REG32(ECX) = FETCH32(); + CYCLES(CYCLES_MOV_IMM_REG); +} + +static void I386OP(mov_edx_i32)(void) // Opcode 0xba +{ + REG32(EDX) = FETCH32(); + CYCLES(CYCLES_MOV_IMM_REG); +} + +static void I386OP(mov_ebx_i32)(void) // Opcode 0xbb +{ + REG32(EBX) = FETCH32(); + CYCLES(CYCLES_MOV_IMM_REG); +} + +static void I386OP(mov_esp_i32)(void) // Opcode 0xbc +{ + REG32(ESP) = FETCH32(); + CYCLES(CYCLES_MOV_IMM_REG); +} + +static void I386OP(mov_ebp_i32)(void) // Opcode 0xbd +{ + REG32(EBP) = FETCH32(); + CYCLES(CYCLES_MOV_IMM_REG); +} + +static void I386OP(mov_esi_i32)(void) // Opcode 0xbe +{ + REG32(ESI) = FETCH32(); + CYCLES(CYCLES_MOV_IMM_REG); +} + +static void I386OP(mov_edi_i32)(void) // Opcode 0xbf +{ + REG32(EDI) = FETCH32(); + CYCLES(CYCLES_MOV_IMM_REG); +} + +static void I386OP(movsd)(void) // Opcode 0xa5 +{ + UINT32 eas, ead, v; + if( I.segment_prefix ) { + eas = i386_translate( I.segment_override, I.address_size ? REG32(ESI) : REG16(SI) ); + } else { + eas = i386_translate( DS, I.address_size ? REG32(ESI) : REG16(SI) ); + } + ead = i386_translate( ES, I.address_size ? REG32(EDI) : REG16(DI) ); + v = READ32(eas); + WRITE32(ead, v); + BUMP_SI(4); + BUMP_DI(4); + CYCLES(CYCLES_MOVS); +} + +static void I386OP(movsx_r32_rm8)(void) // Opcode 0x0f be +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + INT32 src = (INT8)LOAD_RM8(modrm); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOVSX_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + INT32 src = (INT8)READ8(ea); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOVSX_MEM_REG); + } +} + +static void I386OP(movsx_r32_rm16)(void) // Opcode 0x0f bf +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + INT32 src = (INT16)LOAD_RM16(modrm); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOVSX_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + INT32 src = (INT16)READ16(ea); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOVSX_MEM_REG); + } +} + +static void I386OP(movzx_r32_rm8)(void) // Opcode 0x0f b6 +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 src = (UINT8)LOAD_RM8(modrm); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOVZX_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 src = (UINT8)READ8(ea); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOVZX_MEM_REG); + } +} + +static void I386OP(movzx_r32_rm16)(void) // Opcode 0x0f b7 +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 src = (UINT16)LOAD_RM16(modrm); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOVZX_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 src = (UINT16)READ16(ea); + STORE_REG32(modrm, src); + CYCLES(CYCLES_MOVZX_MEM_REG); + } +} + +static void I386OP(or_rm32_r32)(void) // Opcode 0x09 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + dst = LOAD_RM32(modrm); + dst = OR32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + dst = READ32(ea); + dst = OR32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } +} + +static void I386OP(or_r32_rm32)(void) // Opcode 0x0b +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + dst = LOAD_REG32(modrm); + dst = OR32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + dst = LOAD_REG32(modrm); + dst = OR32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_MEM_REG); + } +} + +static void I386OP(or_eax_i32)(void) // Opcode 0x0d +{ + UINT32 src, dst; + src = FETCH32(); + dst = REG32(EAX); + dst = OR32(dst, src); + REG32(EAX) = dst; + CYCLES(CYCLES_ALU_IMM_ACC); +} + +static void I386OP(out_eax_i8)(void) // Opcode 0xe7 +{ + UINT16 port = FETCH(); + UINT32 data = REG32(EAX); + WRITEPORT32(port, data); + CYCLES(CYCLES_OUT_VAR); +} + +static void I386OP(out_eax_dx)(void) // Opcode 0xef +{ + UINT16 port = REG16(DX); + UINT32 data = REG32(EAX); + WRITEPORT32(port, data); + CYCLES(CYCLES_OUT); +} + +static void I386OP(pop_eax)(void) // Opcode 0x58 +{ + REG32(EAX) = POP32(); + CYCLES(CYCLES_POP_REG_SHORT); +} + +static void I386OP(pop_ecx)(void) // Opcode 0x59 +{ + REG32(ECX) = POP32(); + CYCLES(CYCLES_POP_REG_SHORT); +} + +static void I386OP(pop_edx)(void) // Opcode 0x5a +{ + REG32(EDX) = POP32(); + CYCLES(CYCLES_POP_REG_SHORT); +} + +static void I386OP(pop_ebx)(void) // Opcode 0x5b +{ + REG32(EBX) = POP32(); + CYCLES(CYCLES_POP_REG_SHORT); +} + +static void I386OP(pop_esp)(void) // Opcode 0x5c +{ + REG32(ESP) = POP32(); + CYCLES(CYCLES_POP_REG_SHORT); +} + +static void I386OP(pop_ebp)(void) // Opcode 0x5d +{ + REG32(EBP) = POP32(); + CYCLES(CYCLES_POP_REG_SHORT); +} + +static void I386OP(pop_esi)(void) // Opcode 0x5e +{ + REG32(ESI) = POP32(); + CYCLES(CYCLES_POP_REG_SHORT); +} + +static void I386OP(pop_edi)(void) // Opcode 0x5f +{ + REG32(EDI) = POP32(); + CYCLES(CYCLES_POP_REG_SHORT); +} + +static void I386OP(pop_ds32)(void) // Opcode 0x1f +{ + I.sreg[DS].selector = POP32(); + if( PROTECTED_MODE ) { + i386_load_segment_descriptor(DS); + } else { + i386_load_segment_descriptor(DS); + } + CYCLES(CYCLES_POP_SREG); +} + +static void I386OP(pop_es32)(void) // Opcode 0x07 +{ + I.sreg[ES].selector = POP32(); + if( PROTECTED_MODE ) { + i386_load_segment_descriptor(ES); + } else { + i386_load_segment_descriptor(ES); + } + CYCLES(CYCLES_POP_SREG); +} + +static void I386OP(pop_fs32)(void) // Opcode 0x0f a1 +{ + I.sreg[FS].selector = POP32(); + if( PROTECTED_MODE ) { + i386_load_segment_descriptor(FS); + } else { + i386_load_segment_descriptor(FS); + } + CYCLES(CYCLES_POP_SREG); +} + +static void I386OP(pop_gs32)(void) // Opcode 0x0f a9 +{ + I.sreg[GS].selector = POP32(); + if( PROTECTED_MODE ) { + i386_load_segment_descriptor(GS); + } else { + i386_load_segment_descriptor(GS); + } + CYCLES(CYCLES_POP_SREG); +} + +static void I386OP(pop_ss32)(void) // Opcode 0x17 +{ + I.sreg[SS].selector = POP32(); + if( PROTECTED_MODE ) { + i386_load_segment_descriptor(SS); + } else { + i386_load_segment_descriptor(SS); + } + CYCLES(CYCLES_POP_SREG); +} + +static void I386OP(pop_rm32)(void) // Opcode 0x8f +{ + UINT8 modrm = FETCH(); + UINT32 value = POP32(); + + if( modrm >= 0xc0 ) { + STORE_RM32(modrm, value); + } else { + UINT32 ea = GetEA(modrm); + WRITE32(ea, value); + } + CYCLES(CYCLES_POP_RM); +} + +static void I386OP(popad)(void) // Opcode 0x61 +{ + REG32(EDI) = POP32(); + REG32(ESI) = POP32(); + REG32(EBP) = POP32(); + REG32(ESP) += 4; + REG32(EBX) = POP32(); + REG32(EDX) = POP32(); + REG32(ECX) = POP32(); + REG32(EAX) = POP32(); + CYCLES(CYCLES_POPA); +} + +static void I386OP(popfd)(void) // Opcode 0x9d +{ + UINT32 value = POP32(); + set_flags(value); + CYCLES(CYCLES_POPF); +} + +static void I386OP(push_eax)(void) // Opcode 0x50 +{ + PUSH32( REG32(EAX) ); + CYCLES(CYCLES_PUSH_REG_SHORT); +} + +static void I386OP(push_ecx)(void) // Opcode 0x51 +{ + PUSH32( REG32(ECX) ); + CYCLES(CYCLES_PUSH_REG_SHORT); +} + +static void I386OP(push_edx)(void) // Opcode 0x52 +{ + PUSH32( REG32(EDX) ); + CYCLES(CYCLES_PUSH_REG_SHORT); +} + +static void I386OP(push_ebx)(void) // Opcode 0x53 +{ + PUSH32( REG32(EBX) ); + CYCLES(CYCLES_PUSH_REG_SHORT); +} + +static void I386OP(push_esp)(void) // Opcode 0x54 +{ + PUSH32( REG32(ESP) ); + CYCLES(CYCLES_PUSH_REG_SHORT); +} + +static void I386OP(push_ebp)(void) // Opcode 0x55 +{ + PUSH32( REG32(EBP) ); + CYCLES(CYCLES_PUSH_REG_SHORT); +} + +static void I386OP(push_esi)(void) // Opcode 0x56 +{ + PUSH32( REG32(ESI) ); + CYCLES(CYCLES_PUSH_REG_SHORT); +} + +static void I386OP(push_edi)(void) // Opcode 0x57 +{ + PUSH32( REG32(EDI) ); + CYCLES(CYCLES_PUSH_REG_SHORT); +} + +static void I386OP(push_cs32)(void) // Opcode 0x0e +{ + PUSH32( I.sreg[CS].selector ); + CYCLES(CYCLES_PUSH_SREG); +} + +static void I386OP(push_ds32)(void) // Opcode 0x1e +{ + PUSH32( I.sreg[DS].selector ); + CYCLES(CYCLES_PUSH_SREG); +} + +static void I386OP(push_es32)(void) // Opcode 0x06 +{ + PUSH32( I.sreg[ES].selector ); + CYCLES(CYCLES_PUSH_SREG); +} + +static void I386OP(push_fs32)(void) // Opcode 0x0f a0 +{ + PUSH32( I.sreg[FS].selector ); + CYCLES(CYCLES_PUSH_SREG); +} + +static void I386OP(push_gs32)(void) // Opcode 0x0f a8 +{ + PUSH32( I.sreg[GS].selector ); + CYCLES(CYCLES_PUSH_SREG); +} + +static void I386OP(push_ss32)(void) // Opcode 0x16 +{ + PUSH32( I.sreg[SS].selector ); + CYCLES(CYCLES_PUSH_SREG); +} + +static void I386OP(push_i32)(void) // Opcode 0x68 +{ + UINT32 value = FETCH32(); + PUSH32(value); + CYCLES(CYCLES_PUSH_IMM); +} + +static void I386OP(pushad)(void) // Opcode 0x60 +{ + UINT32 temp = REG32(ESP); + PUSH32( REG32(EAX) ); + PUSH32( REG32(ECX) ); + PUSH32( REG32(EDX) ); + PUSH32( REG32(EBX) ); + PUSH32( temp ); + PUSH32( REG32(EBP) ); + PUSH32( REG32(ESI) ); + PUSH32( REG32(EDI) ); + CYCLES(CYCLES_PUSHA); +} + +static void I386OP(pushfd)(void) // Opcode 0x9c +{ + PUSH32( get_flags() & 0x00fcffff ); + CYCLES(CYCLES_PUSHF); +} + +static void I386OP(ret_near32_i16)(void) // Opcode 0xc2 +{ + INT16 disp = FETCH16(); + I.eip = POP32(); + REG32(ESP) += disp; + CHANGE_PC(I.eip); + CYCLES(CYCLES_RET_IMM); /* TODO: Timing = 10 + m */ +} + +static void I386OP(ret_near32)(void) // Opcode 0xc3 +{ + I.eip = POP32(); + CHANGE_PC(I.eip); + CYCLES(CYCLES_RET); /* TODO: Timing = 10 + m */ +} + +static void I386OP(sbb_rm32_r32)(void) // Opcode 0x19 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm) + I.CF; + dst = LOAD_RM32(modrm); + dst = SUB32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm) + I.CF; + dst = READ32(ea); + dst = SUB32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } +} + +static void I386OP(sbb_r32_rm32)(void) // Opcode 0x1b +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm) + I.CF; + dst = LOAD_REG32(modrm); + dst = SUB32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea) + I.CF; + dst = LOAD_REG32(modrm); + dst = SUB32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_MEM_REG); + } +} + +static void I386OP(sbb_eax_i32)(void) // Opcode 0x1d +{ + UINT32 src, dst; + src = FETCH32() + I.CF; + dst = REG32(EAX); + dst = SUB32(dst, src); + REG32(EAX) = dst; + CYCLES(CYCLES_ALU_IMM_ACC); +} + +static void I386OP(scasd)(void) // Opcode 0xaf +{ + UINT32 eas, src, dst; + eas = i386_translate( ES, I.address_size ? REG32(EDI) : REG16(DI) ); + src = READ32(eas); + dst = REG32(EAX); + SUB32(dst, src); + BUMP_DI(4); + CYCLES(CYCLES_SCAS); +} + +static void I386OP(shld32_i8)(void) // Opcode 0x0f a4 +{ + /* TODO: Correct flags */ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 upper = LOAD_REG32(modrm); + UINT8 shift = FETCH(); + if( shift > 31 || shift == 0 ) { + + } else { + I.CF = (dst & (1 << (32-shift))) ? 1 : 0; + dst = (dst << shift) | (upper >> (32-shift)); + SetSZPF32(dst); + } + STORE_RM32(modrm, dst); + CYCLES(CYCLES_SHLD_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 upper = LOAD_REG32(modrm); + UINT8 shift = FETCH(); + if( shift > 31 || shift == 0 ) { + + } else { + I.CF = (dst & (1 << (32-shift))) ? 1 : 0; + dst = (dst << shift) | (upper >> (32-shift)); + SetSZPF32(dst); + } + WRITE32(ea, dst); + CYCLES(CYCLES_SHLD_MEM); + } +} + +static void I386OP(shld32_cl)(void) // Opcode 0x0f a5 +{ + /* TODO: Correct flags */ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 upper = LOAD_REG32(modrm); + UINT8 shift = REG8(CL); + if( shift > 31 || shift == 0 ) { + + } else { + I.CF = (dst & (1 << (32-shift))) ? 1 : 0; + dst = (dst << shift) | (upper >> (32-shift)); + SetSZPF32(dst); + } + STORE_RM32(modrm, dst); + CYCLES(CYCLES_SHLD_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 upper = LOAD_REG32(modrm); + UINT8 shift = REG8(CL); + if( shift > 31 || shift == 0 ) { + + } else { + I.CF = (dst & (1 << (32-shift))) ? 1 : 0; + dst = (dst << shift) | (upper >> (32-shift)); + SetSZPF32(dst); + } + WRITE32(ea, dst); + CYCLES(CYCLES_SHLD_MEM); + } +} + +static void I386OP(shrd32_i8)(void) // Opcode 0x0f ac +{ + /* TODO: Correct flags */ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 upper = LOAD_REG32(modrm); + UINT8 shift = FETCH(); + if( shift > 31 || shift == 0 ) { + + } else { + I.CF = (dst & (1 << (shift-1))) ? 1 : 0; + dst = (dst >> shift) | (upper << (32-shift)); + SetSZPF32(dst); + } + STORE_RM32(modrm, dst); + CYCLES(CYCLES_SHRD_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 upper = LOAD_REG32(modrm); + UINT8 shift = FETCH(); + if( shift > 31 || shift == 0 ) { + + } else { + I.CF = (dst & (1 << (shift-1))) ? 1 : 0; + dst = (dst >> shift) | (upper << (32-shift)); + SetSZPF32(dst); + } + WRITE32(ea, dst); + CYCLES(CYCLES_SHRD_MEM); + } +} + +static void I386OP(shrd32_cl)(void) // Opcode 0x0f ad +{ + /* TODO: Correct flags */ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 upper = LOAD_REG32(modrm); + UINT8 shift = REG8(CL); + if( shift > 31 || shift == 0 ) { + + } else { + I.CF = (dst & (1 << (shift-1))) ? 1 : 0; + dst = (dst >> shift) | (upper << (32-shift)); + SetSZPF32(dst); + } + STORE_RM32(modrm, dst); + CYCLES(CYCLES_SHRD_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 upper = LOAD_REG32(modrm); + UINT8 shift = REG8(CL); + if( shift > 31 || shift == 0 ) { + + } else { + I.CF = (dst & (1 << (shift-1))) ? 1 : 0; + dst = (dst >> shift) | (upper << (32-shift)); + SetSZPF32(dst); + } + WRITE32(ea, dst); + CYCLES(CYCLES_SHRD_MEM); + } +} + +static void I386OP(stosd)(void) // Opcode 0xab +{ + UINT32 eas = i386_translate( ES, I.address_size ? REG32(EDI) : REG16(DI) ); + WRITE32(eas, REG32(EAX)); + BUMP_DI(4); + CYCLES(CYCLES_STOS); +} + +static void I386OP(sub_rm32_r32)(void) // Opcode 0x29 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + dst = LOAD_RM32(modrm); + dst = SUB32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + dst = READ32(ea); + dst = SUB32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } +} + +static void I386OP(sub_r32_rm32)(void) // Opcode 0x2b +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + dst = LOAD_REG32(modrm); + dst = SUB32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + dst = LOAD_REG32(modrm); + dst = SUB32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_MEM_REG); + } +} + +static void I386OP(sub_eax_i32)(void) // Opcode 0x2d +{ + UINT32 src, dst; + src = FETCH32(); + dst = REG32(EAX); + dst = SUB32(dst, src); + REG32(EAX) = dst; + CYCLES(CYCLES_ALU_IMM_ACC); +} + +static void I386OP(test_eax_i32)(void) // Opcode 0xa9 +{ + UINT32 src = FETCH32(); + UINT32 dst = REG32(EAX); + dst = src & dst; + SetSZPF32(dst); + I.CF = 0; + I.OF = 0; + CYCLES(CYCLES_TEST_IMM_ACC); +} + +static void I386OP(test_rm32_r32)(void) // Opcode 0x85 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + dst = LOAD_RM32(modrm); + dst = src & dst; + SetSZPF32(dst); + I.CF = 0; + I.OF = 0; + CYCLES(CYCLES_TEST_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + dst = READ32(ea); + dst = src & dst; + SetSZPF32(dst); + I.CF = 0; + I.OF = 0; + CYCLES(CYCLES_TEST_REG_MEM); + } +} + +static void I386OP(xchg_eax_ecx)(void) // Opcode 0x91 +{ + UINT32 temp; + temp = REG32(EAX); + REG32(EAX) = REG32(ECX); + REG32(ECX) = temp; + CYCLES(CYCLES_XCHG_REG_REG); +} + +static void I386OP(xchg_eax_edx)(void) // Opcode 0x92 +{ + UINT32 temp; + temp = REG32(EAX); + REG32(EAX) = REG32(EDX); + REG32(EDX) = temp; + CYCLES(CYCLES_XCHG_REG_REG); +} + +static void I386OP(xchg_eax_ebx)(void) // Opcode 0x93 +{ + UINT32 temp; + temp = REG32(EAX); + REG32(EAX) = REG32(EBX); + REG32(EBX) = temp; + CYCLES(CYCLES_XCHG_REG_REG); +} + +static void I386OP(xchg_eax_esp)(void) // Opcode 0x94 +{ + UINT32 temp; + temp = REG32(EAX); + REG32(EAX) = REG32(ESP); + REG32(ESP) = temp; + CYCLES(CYCLES_XCHG_REG_REG); +} + +static void I386OP(xchg_eax_ebp)(void) // Opcode 0x95 +{ + UINT32 temp; + temp = REG32(EAX); + REG32(EAX) = REG32(EBP); + REG32(EBP) = temp; + CYCLES(CYCLES_XCHG_REG_REG); +} + +static void I386OP(xchg_eax_esi)(void) // Opcode 0x96 +{ + UINT32 temp; + temp = REG32(EAX); + REG32(EAX) = REG32(ESI); + REG32(ESI) = temp; + CYCLES(CYCLES_XCHG_REG_REG); +} + +static void I386OP(xchg_eax_edi)(void) // Opcode 0x97 +{ + UINT32 temp; + temp = REG32(EAX); + REG32(EAX) = REG32(EDI); + REG32(EDI) = temp; + CYCLES(CYCLES_XCHG_REG_REG); +} + +static void I386OP(xchg_r32_rm32)(void) // Opcode 0x87 +{ + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + UINT32 src = LOAD_RM32(modrm); + UINT32 dst = LOAD_REG32(modrm); + STORE_REG32(modrm, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_XCHG_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 src = READ32(ea); + UINT32 dst = LOAD_REG32(modrm); + STORE_REG32(modrm, src); + WRITE32(ea, dst); + CYCLES(CYCLES_XCHG_REG_MEM); + } +} + +static void I386OP(xor_rm32_r32)(void) // Opcode 0x31 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_REG32(modrm); + dst = LOAD_RM32(modrm); + dst = XOR32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = LOAD_REG32(modrm); + dst = READ32(ea); + dst = XOR32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } +} + +static void I386OP(xor_r32_rm32)(void) // Opcode 0x33 +{ + UINT32 src, dst; + UINT8 modrm = FETCH(); + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + dst = LOAD_REG32(modrm); + dst = XOR32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + dst = LOAD_REG32(modrm); + dst = XOR32(dst, src); + STORE_REG32(modrm, dst); + CYCLES(CYCLES_ALU_MEM_REG); + } +} + +static void I386OP(xor_eax_i32)(void) // Opcode 0x35 +{ + UINT32 src, dst; + src = FETCH32(); + dst = REG32(EAX); + dst = XOR32(dst, src); + REG32(EAX) = dst; + CYCLES(CYCLES_ALU_IMM_ACC); +} + + + +static void I386OP(group81_32)(void) // Opcode 0x81 +{ + UINT32 ea; + UINT32 src, dst; + UINT8 modrm = FETCH(); + + switch( (modrm >> 3) & 0x7 ) + { + case 0: // ADD Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = FETCH32(); + dst = ADD32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = FETCH32(); + dst = ADD32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 1: // OR Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = FETCH32(); + dst = OR32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = FETCH32(); + dst = OR32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 2: // ADC Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = FETCH32(); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = FETCH32(); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 3: // SBB Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = FETCH32() + I.CF; + dst = SUB32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = FETCH32() + I.CF; + dst = SUB32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 4: // AND Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = FETCH32(); + dst = AND32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = FETCH32(); + dst = AND32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 5: // SUB Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = FETCH32(); + dst = SUB32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = FETCH32(); + dst = SUB32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 6: // XOR Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = FETCH32(); + dst = XOR32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = FETCH32(); + dst = XOR32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 7: // CMP Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = FETCH32(); + SUB32(dst, src); + CYCLES(CYCLES_CMP_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = FETCH32(); + SUB32(dst, src); + CYCLES(CYCLES_CMP_REG_MEM); + } + break; + } +} + +static void I386OP(group83_32)(void) // Opcode 0x83 +{ + UINT32 ea; + UINT32 src, dst; + UINT8 modrm = FETCH(); + + switch( (modrm >> 3) & 0x7 ) + { + case 0: // ADD Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = ADD32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = ADD32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 1: // OR Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = OR32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = OR32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 2: // ADC Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = (UINT32)(INT32)(INT8)FETCH(); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = (UINT32)(INT32)(INT8)FETCH(); + src = ADD32(src, I.CF); + dst = ADD32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 3: // SBB Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = ((UINT32)(INT32)(INT8)FETCH()) + I.CF; + dst = SUB32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = ((UINT32)(INT32)(INT8)FETCH()) + I.CF; + dst = SUB32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 4: // AND Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = AND32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = AND32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 5: // SUB Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = SUB32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = SUB32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 6: // XOR Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = XOR32(dst, src); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_ALU_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = (UINT32)(INT32)(INT8)FETCH(); + dst = XOR32(dst, src); + WRITE32(ea, dst); + CYCLES(CYCLES_ALU_REG_MEM); + } + break; + case 7: // CMP Rm32, i32 + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + src = (UINT32)(INT32)(INT8)FETCH(); + SUB32(dst, src); + CYCLES(CYCLES_CMP_REG_REG); + } else { + ea = GetEA(modrm); + dst = READ32(ea); + src = (UINT32)(INT32)(INT8)FETCH(); + SUB32(dst, src); + CYCLES(CYCLES_CMP_REG_MEM); + } + break; + } +} + +static void I386OP(groupC1_32)(void) // Opcode 0xc1 +{ + UINT32 dst; + UINT8 modrm = FETCH(); + UINT8 shift; + + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + shift = FETCH() & 0x1f; + dst = i386_shift_rotate32(modrm, dst, shift); + STORE_RM32(modrm, dst); + } else { + UINT32 ea = GetEA(modrm); + dst = READ32(ea); + shift = FETCH() & 0x1f; + dst = i386_shift_rotate32(modrm, dst, shift); + WRITE32(ea, dst); + } +} + +static void I386OP(groupD1_32)(void) // Opcode 0xd1 +{ + UINT32 dst; + UINT8 modrm = FETCH(); + + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + dst = i386_shift_rotate32(modrm, dst, 1); + STORE_RM32(modrm, dst); + } else { + UINT32 ea = GetEA(modrm); + dst = READ32(ea); + dst = i386_shift_rotate32(modrm, dst, 1); + WRITE32(ea, dst); + } +} + +static void I386OP(groupD3_32)(void) // Opcode 0xd3 +{ + UINT32 dst; + UINT8 modrm = FETCH(); + + if( modrm >= 0xc0 ) { + dst = LOAD_RM32(modrm); + dst = i386_shift_rotate32(modrm, dst, REG8(CL)); + STORE_RM32(modrm, dst); + } else { + UINT32 ea = GetEA(modrm); + dst = READ32(ea); + dst = i386_shift_rotate32(modrm, dst, REG8(CL)); + WRITE32(ea, dst); + } +} + +static void I386OP(groupF7_32)(void) // Opcode 0xf7 +{ + UINT8 modrm = FETCH(); + + switch( (modrm >> 3) & 0x7 ) + { + case 0: /* TEST Rm32, i32 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT32 src = FETCH32(); + dst &= src; + I.CF = I.OF = I.AF = 0; + SetSZPF32(dst); + CYCLES(CYCLES_TEST_IMM_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT32 src = FETCH32(); + dst &= src; + I.CF = I.OF = I.AF = 0; + SetSZPF32(dst); + CYCLES(CYCLES_TEST_IMM_MEM); + } + break; + case 2: /* NOT Rm32 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + dst = ~dst; + STORE_RM32(modrm, dst); + CYCLES(CYCLES_NOT_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + dst = ~dst; + WRITE32(ea, dst); + CYCLES(CYCLES_NOT_MEM); + } + break; + case 3: /* NEG Rm32 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + dst = SUB32( 0, dst ); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_NEG_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + dst = SUB32( 0, dst ); + WRITE32(ea, dst); + CYCLES(CYCLES_NEG_MEM); + } + break; + case 4: /* MUL EAX, Rm32 */ + { + UINT64 result; + UINT32 src, dst; + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + CYCLES(CYCLES_MUL32_ACC_REG); /* TODO: Correct multiply timing */ + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + CYCLES(CYCLES_MUL32_ACC_MEM); /* TODO: Correct multiply timing */ + } + + dst = REG32(EAX); + result = (UINT64)src * (UINT64)dst; + REG32(EDX) = (UINT32)(result >> 32); + REG32(EAX) = (UINT32)result; + + I.CF = I.OF = (REG32(EDX) != 0); + } + break; + case 5: /* IMUL EAX, Rm32 */ + { + INT64 result; + INT64 src, dst; + if( modrm >= 0xc0 ) { + src = (INT64)(INT32)LOAD_RM32(modrm); + CYCLES(CYCLES_IMUL32_ACC_REG); /* TODO: Correct multiply timing */ + } else { + UINT32 ea = GetEA(modrm); + src = (INT64)(INT32)READ32(ea); + CYCLES(CYCLES_IMUL32_ACC_MEM); /* TODO: Correct multiply timing */ + } + + dst = (INT64)(INT32)REG32(EAX); + result = src * dst; + + REG32(EDX) = (UINT32)(result >> 32); + REG32(EAX) = (UINT32)result; + + I.CF = I.OF = !(result == (INT64)(INT32)result); + } + break; + case 6: /* DIV EAX, Rm32 */ + { + UINT64 quotient, remainder, result; + UINT32 src; + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + CYCLES(CYCLES_DIV32_ACC_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + CYCLES(CYCLES_DIV32_ACC_MEM); + } + + quotient = ((UINT64)(REG32(EDX)) << 32) | (UINT64)(REG32(EAX)); + if( src ) { + remainder = quotient % (UINT64)src; + result = quotient / (UINT64)src; + if( result > 0xffffffff ) { + /* TODO: Divide error */ + } else { + REG32(EDX) = (UINT32)remainder; + REG32(EAX) = (UINT32)result; + } + } else { + /* TODO: Divide by zero */ + } + } + break; + case 7: /* IDIV EAX, Rm32 */ + { + INT64 quotient, remainder, result; + UINT32 src; + if( modrm >= 0xc0 ) { + src = LOAD_RM32(modrm); + CYCLES(CYCLES_IDIV32_ACC_REG); + } else { + UINT32 ea = GetEA(modrm); + src = READ32(ea); + CYCLES(CYCLES_IDIV32_ACC_MEM); + } + + quotient = (((INT64)REG32(EDX)) << 32) | ((UINT64)REG32(EAX)); + if( src ) { + remainder = quotient % (INT64)(INT32)src; + result = quotient / (INT64)(INT32)src; + if( result > 0xffffffff ) { + /* TODO: Divide error */ + } else { + REG32(EDX) = (UINT32)remainder; + REG32(EAX) = (UINT32)result; + } + } else { + /* TODO: Divide by zero */ + } + } + break; + } +} + +static void I386OP(groupFF_32)(void) // Opcode 0xff +{ + UINT8 modrm = FETCH(); + + switch( (modrm >> 3) & 0x7 ) + { + case 0: /* INC Rm32 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + dst = INC32(dst); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_INC_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + dst = INC32(dst); + WRITE32(ea, dst); + CYCLES(CYCLES_INC_MEM); + } + break; + case 1: /* DEC Rm32 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + dst = DEC32(dst); + STORE_RM32(modrm, dst); + CYCLES(CYCLES_DEC_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + dst = DEC32(dst); + WRITE32(ea, dst); + CYCLES(CYCLES_DEC_MEM); + } + break; + case 2: /* CALL Rm32 */ + { + UINT32 address; + if( modrm >= 0xc0 ) { + address = LOAD_RM32(modrm); + CYCLES(CYCLES_CALL_REG); /* TODO: Timing = 7 + m */ + } else { + UINT32 ea = GetEA(modrm); + address = READ32(ea); + CYCLES(CYCLES_CALL_MEM); /* TODO: Timing = 10 + m */ + } + PUSH32( I.eip ); + I.eip = address; + CHANGE_PC(I.eip); + } + break; + case 3: /* CALL FAR Rm32 */ + { + UINT16 selector; + UINT32 address; + if( modrm >= 0xc0 ) { + fatalerror("NYI"); + } else { + UINT32 ea = GetEA(modrm); + address = READ32(ea + 0); + selector = READ16(ea + 4); + CYCLES(CYCLES_CALL_MEM_INTERSEG); /* TODO: Timing = 10 + m */ + } + PUSH32( I.sreg[CS].selector ); + PUSH32( I.eip ); + I.sreg[CS].selector = selector; + I.performed_intersegment_jump = 1; + i386_load_segment_descriptor( CS ); + I.eip = address; + CHANGE_PC(I.eip); + } + break; + case 4: /* JMP Rm32 */ + { + UINT32 address; + if( modrm >= 0xc0 ) { + address = LOAD_RM32(modrm); + CYCLES(CYCLES_JMP_REG); /* TODO: Timing = 7 + m */ + } else { + UINT32 ea = GetEA(modrm); + address = READ32(ea); + CYCLES(CYCLES_JMP_MEM); /* TODO: Timing = 10 + m */ + } + I.eip = address; + CHANGE_PC(I.eip); + } + break; + case 5: /* JMP FAR Rm32 */ + { + UINT16 selector; + UINT32 address; + if( modrm >= 0xc0 ) { + fatalerror("NYI"); + } else { + UINT32 ea = GetEA(modrm); + address = READ32(ea + 0); + selector = READ16(ea + 4); + CYCLES(CYCLES_JMP_MEM_INTERSEG); /* TODO: Timing = 10 + m */ + } + I.sreg[CS].selector = selector; + I.performed_intersegment_jump = 1; + i386_load_segment_descriptor( CS ); + I.eip = address; + CHANGE_PC(I.eip); + } + break; + case 6: /* PUSH Rm32 */ + { + UINT32 value; + if( modrm >= 0xc0 ) { + value = LOAD_RM32(modrm); + } else { + UINT32 ea = GetEA(modrm); + value = READ32(ea); + } + PUSH32(value); + CYCLES(CYCLES_PUSH_RM); + } + break; + default: + fatalerror("i386: groupFF_32 /%d unimplemented at %08X", (modrm >> 3) & 0x7, I.pc-2); + break; + } +} + +static void I386OP(group0F00_32)(void) // Opcode 0x0f 00 +{ + UINT32 address, ea; + UINT8 modrm = FETCH(); + + switch( (modrm >> 3) & 0x7 ) + { + case 2: /* LLDT */ + if ( PROTECTED_MODE && !V8086_MODE ) + { + if( modrm >= 0xc0 ) { + address = LOAD_RM32(modrm); + ea = i386_translate( CS, address ); + CYCLES(CYCLES_LLDT_REG); + } else { + ea = GetEA(modrm); + CYCLES(CYCLES_LLDT_MEM); + } + I.ldtr.segment = READ32(ea); + } + else + { + i386_trap(6, 0); + } + break; + + case 3: /* LTR */ + if ( PROTECTED_MODE && !V8086_MODE ) + { + if( modrm >= 0xc0 ) { + address = LOAD_RM32(modrm); + ea = i386_translate( CS, address ); + CYCLES(CYCLES_LTR_REG); + } else { + ea = GetEA(modrm); + CYCLES(CYCLES_LTR_MEM); + } + I.task.segment = READ32(ea); + } + else + { + i386_trap(6, 0); + } + break; + + default: + fatalerror("i386: group0F00_32 /%d unimplemented", (modrm >> 3) & 0x7); + break; + } +} + +static void I386OP(group0F01_32)(void) // Opcode 0x0f 01 +{ + UINT8 modrm = FETCH(); + UINT32 address, ea; + + switch( (modrm >> 3) & 0x7 ) + { + case 0: /* SGDT */ + { + if( modrm >= 0xc0 ) { + address = LOAD_RM32(modrm); + ea = i386_translate( CS, address ); + } else { + ea = GetEA(modrm); + } + WRITE16(ea, I.gdtr.limit); + WRITE32(ea + 2, I.gdtr.base); + CYCLES(CYCLES_SGDT); + break; + } + case 1: /* SIDT */ + { + if (modrm >= 0xc0) + { + address = LOAD_RM32(modrm); + ea = i386_translate( CS, address ); + } + else + { + ea = GetEA(modrm); + } + WRITE16(ea, I.idtr.limit); + WRITE32(ea + 2, I.idtr.base); + CYCLES(CYCLES_SIDT); + break; + } + case 2: /* LGDT */ + { + if( modrm >= 0xc0 ) { + address = LOAD_RM32(modrm); + ea = i386_translate( CS, address ); + } else { + ea = GetEA(modrm); + } + I.gdtr.limit = READ16(ea); + I.gdtr.base = READ32(ea + 2); + CYCLES(CYCLES_LGDT); + break; + } + case 3: /* LIDT */ + { + if( modrm >= 0xc0 ) { + address = LOAD_RM32(modrm); + ea = i386_translate( CS, address ); + } else { + ea = GetEA(modrm); + } + I.idtr.limit = READ16(ea); + I.idtr.base = READ32(ea + 2); + CYCLES(CYCLES_LIDT); + break; + } + default: + fatalerror("i386: unimplemented opcode 0x0f 01 /%d at %08X", (modrm >> 3) & 0x7, I.eip - 2); + break; + } +} + +static void I386OP(group0FBA_32)(void) // Opcode 0x0f ba +{ + UINT8 modrm = FETCH(); + + switch( (modrm >> 3) & 0x7 ) + { + case 4: /* BT Rm32, i8 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT8 bit = FETCH(); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + + CYCLES(CYCLES_BT_IMM_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT8 bit = FETCH(); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + + CYCLES(CYCLES_BT_IMM_MEM); + } + break; + case 5: /* BTS Rm32, i8 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT8 bit = FETCH(); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst |= (1 << bit); + + STORE_RM32(modrm, dst); + CYCLES(CYCLES_BTS_IMM_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT8 bit = FETCH(); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst |= (1 << bit); + + WRITE32(ea, dst); + CYCLES(CYCLES_BTS_IMM_MEM); + } + break; + case 6: /* BTR Rm32, i8 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT8 bit = FETCH(); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst &= ~(1 << bit); + + STORE_RM32(modrm, dst); + CYCLES(CYCLES_BTR_IMM_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT8 bit = FETCH(); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst &= ~(1 << bit); + + WRITE32(ea, dst); + CYCLES(CYCLES_BTR_IMM_MEM); + } + break; + case 7: /* BTC Rm32, i8 */ + if( modrm >= 0xc0 ) { + UINT32 dst = LOAD_RM32(modrm); + UINT8 bit = FETCH(); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst ^= (1 << bit); + + STORE_RM32(modrm, dst); + CYCLES(CYCLES_BTC_IMM_REG); + } else { + UINT32 ea = GetEA(modrm); + UINT32 dst = READ32(ea); + UINT8 bit = FETCH(); + + if( dst & (1 << bit) ) + I.CF = 1; + else + I.CF = 0; + dst ^= (1 << bit); + + WRITE32(ea, dst); + CYCLES(CYCLES_BTC_IMM_MEM); + } + break; + default: + fatalerror("i386: group0FBA_32 /%d unknown", (modrm >> 3) & 0x7); + break; + } +} + +static void I386OP(bound_r32_m32_m32)(void) // Opcode 0x62 +{ + UINT8 modrm; + INT32 val, low, high; + + modrm = FETCH(); + + if (modrm >= 0xc0) + { + low = high = LOAD_RM32(modrm); + } + else + { + UINT32 ea = GetEA(modrm); + low = READ32(ea + 0); + high = READ32(ea + 4); + } + val = LOAD_REG32(modrm); + + if ((val < low) || (val > high)) + { + CYCLES(CYCLES_BOUND_OUT_RANGE); + i386_trap(5, 0); + } + else + { + CYCLES(CYCLES_BOUND_IN_RANGE); + } +} + +static void I386OP(retf32)(void) // Opcode 0xcb +{ + I.eip = POP32(); + I.sreg[CS].selector = POP32(); + i386_load_segment_descriptor( CS ); + CHANGE_PC(I.eip); + + CYCLES(CYCLES_RET_INTERSEG); +} + +static void I386OP(retf_i32)(void) // Opcode 0xca +{ + UINT16 count = FETCH16(); + + I.eip = POP32(); + I.sreg[CS].selector = POP32(); + i386_load_segment_descriptor( CS ); + CHANGE_PC(I.eip); + + REG32(ESP) += count; + CYCLES(CYCLES_RET_IMM_INTERSEG); +} + +static void I386OP(xlat32)(void) // Opcode 0xd7 +{ + UINT32 ea; + if( I.segment_prefix ) { + ea = i386_translate( I.segment_override, REG32(EBX) + REG8(AL) ); + } else { + ea = i386_translate( DS, REG32(EBX) + REG8(AL) ); + } + REG8(AL) = READ8(ea); + CYCLES(CYCLES_XLAT); +} + +static void I386OP(load_far_pointer32)(int s) +{ + UINT8 modrm = FETCH(); + + if( modrm >= 0xc0 ) { + fatalerror("NYI"); + } else { + UINT32 ea = GetEA(modrm); + STORE_REG32(modrm, READ32(ea + 0)); + I.sreg[s].selector = READ16(ea + 4); + i386_load_segment_descriptor( s ); + } +} + +static void I386OP(lds32)(void) // Opcode 0xc5 +{ + I386OP(load_far_pointer32)(DS); + CYCLES(CYCLES_LDS); +} + +static void I386OP(lss32)(void) // Opcode 0x0f 0xb2 +{ + I386OP(load_far_pointer32)(SS); + CYCLES(CYCLES_LSS); +} + +static void I386OP(les32)(void) // Opcode 0xc4 +{ + I386OP(load_far_pointer16)(ES); + CYCLES(CYCLES_LES); +} + +static void I386OP(lfs32)(void) // Opcode 0x0f 0xb4 +{ + I386OP(load_far_pointer16)(FS); + CYCLES(CYCLES_LFS); +} + +static void I386OP(lgs32)(void) // Opcode 0x0f 0xb5 +{ + I386OP(load_far_pointer32)(GS); + CYCLES(CYCLES_LGS); +} |