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Implemented undocumented F6/1 and F7/1 TEST instructions.

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Implemented undocumented F1 LOCK and ICEBP instructions.
Implemented missing 286 LOADALL functionality.
SMSW now sets all 12 bits to 1 on 286.
Patch from Greatpsycho.
This commit is contained in:
SarahW 2017-04-28 18:47:38 +01:00
commit 4cb5ddd7f7
5 changed files with 61 additions and 12 deletions
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16
src/386_ops.h
View file

@ -750,7 +750,7 @@ OpFn OP_TABLE(286)[1024] =
/*c0*/ opC0_a16, opC1_w_a16, opRET_w_imm, opRET_w, opLES_w_a16, opLDS_w_a16, opMOV_b_imm_a16,opMOV_w_imm_a16,opENTER_w, opLEAVE_w, opRETF_a16_imm, opRETF_a16, opINT3, opINT, opINTO, opIRET_286,
/*d0*/ opD0_a16, opD1_w_a16, opD2_a16, opD3_w_a16, opAAM, opAAD, opSETALC, opXLAT_a16, opESCAPE_d8_a16,opESCAPE_d9_a16,opESCAPE_da_a16,opESCAPE_db_a16,opESCAPE_dc_a16,opESCAPE_dd_a16,opESCAPE_de_a16,opESCAPE_df_a16,
/*e0*/ opLOOPNE_w, opLOOPE_w, opLOOP_w, opJCXZ, opIN_AL_imm, opIN_AX_imm, opOUT_AL_imm, opOUT_AX_imm, opCALL_r16, opJMP_r16, opJMP_far_a16, opJMP_r8, opIN_AL_DX, opIN_AX_DX, opOUT_AL_DX, opOUT_AX_DX,
/*f0*/ opLOCK, ILLEGAL, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*f0*/ opLOCK, opLOCK, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*32-bit data, 16-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
@ -772,7 +772,7 @@ OpFn OP_TABLE(286)[1024] =
/*c0*/ opC0_a16, opC1_w_a16, opRET_w_imm, opRET_w, opLES_w_a16, opLDS_w_a16, opMOV_b_imm_a16,opMOV_w_imm_a16,opENTER_w, opLEAVE_w, opRETF_a16_imm, opRETF_a16, opINT3, opINT, opINTO, opIRET_286,
/*d0*/ opD0_a16, opD1_w_a16, opD2_a16, opD3_w_a16, opAAM, opAAD, opSETALC, opXLAT_a16, opESCAPE_d8_a16,opESCAPE_d9_a16,opESCAPE_da_a16,opESCAPE_db_a16,opESCAPE_dc_a16,opESCAPE_dd_a16,opESCAPE_de_a16,opESCAPE_df_a16,
/*e0*/ opLOOPNE_w, opLOOPE_w, opLOOP_w, opJCXZ, opIN_AL_imm, opIN_AX_imm, opOUT_AL_imm, opOUT_AX_imm, opCALL_r16, opJMP_r16, opJMP_far_a16, opJMP_r8, opIN_AL_DX, opIN_AX_DX, opOUT_AL_DX, opOUT_AX_DX,
/*f0*/ opLOCK, ILLEGAL, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*f0*/ opLOCK, opLOCK, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*16-bit data, 32-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
@ -794,7 +794,7 @@ OpFn OP_TABLE(286)[1024] =
/*c0*/ opC0_a16, opC1_w_a16, opRET_w_imm, opRET_w, opLES_w_a16, opLDS_w_a16, opMOV_b_imm_a16,opMOV_w_imm_a16,opENTER_w, opLEAVE_w, opRETF_a16_imm, opRETF_a16, opINT3, opINT, opINTO, opIRET_286,
/*d0*/ opD0_a16, opD1_w_a16, opD2_a16, opD3_w_a16, opAAM, opAAD, opSETALC, opXLAT_a16, opESCAPE_d8_a16,opESCAPE_d9_a16,opESCAPE_da_a16,opESCAPE_db_a16,opESCAPE_dc_a16,opESCAPE_dd_a16,opESCAPE_de_a16,opESCAPE_df_a16,
/*e0*/ opLOOPNE_w, opLOOPE_w, opLOOP_w, opJCXZ, opIN_AL_imm, opIN_AX_imm, opOUT_AL_imm, opOUT_AX_imm, opCALL_r16, opJMP_r16, opJMP_far_a16, opJMP_r8, opIN_AL_DX, opIN_AX_DX, opOUT_AL_DX, opOUT_AX_DX,
/*f0*/ opLOCK, ILLEGAL, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*f0*/ opLOCK, opLOCK, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*32-bit data, 32-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
@ -816,7 +816,7 @@ OpFn OP_TABLE(286)[1024] =
/*c0*/ opC0_a16, opC1_w_a16, opRET_w_imm, opRET_w, opLES_w_a16, opLDS_w_a16, opMOV_b_imm_a16,opMOV_w_imm_a16,opENTER_w, opLEAVE_w, opRETF_a16_imm, opRETF_a16, opINT3, opINT, opINTO, opIRET_286,
/*d0*/ opD0_a16, opD1_w_a16, opD2_a16, opD3_w_a16, opAAM, opAAD, opSETALC, opXLAT_a16, opESCAPE_d8_a16,opESCAPE_d9_a16,opESCAPE_da_a16,opESCAPE_db_a16,opESCAPE_dc_a16,opESCAPE_dd_a16,opESCAPE_de_a16,opESCAPE_df_a16,
/*e0*/ opLOOPNE_w, opLOOPE_w, opLOOP_w, opJCXZ, opIN_AL_imm, opIN_AX_imm, opOUT_AL_imm, opOUT_AX_imm, opCALL_r16, opJMP_r16, opJMP_far_a16, opJMP_r8, opIN_AL_DX, opIN_AX_DX, opOUT_AL_DX, opOUT_AX_DX,
/*f0*/ opLOCK, ILLEGAL, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*f0*/ opLOCK, opLOCK, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
};
OpFn OP_TABLE(386)[1024] =
@ -841,7 +841,7 @@ OpFn OP_TABLE(386)[1024] =
/*c0*/ opC0_a16, opC1_w_a16, opRET_w_imm, opRET_w, opLES_w_a16, opLDS_w_a16, opMOV_b_imm_a16,opMOV_w_imm_a16,opENTER_w, opLEAVE_w, opRETF_a16_imm, opRETF_a16, opINT3, opINT, opINTO, opIRET,
/*d0*/ opD0_a16, opD1_w_a16, opD2_a16, opD3_w_a16, opAAM, opAAD, opSETALC, opXLAT_a16, opESCAPE_d8_a16,opESCAPE_d9_a16,opESCAPE_da_a16,opESCAPE_db_a16,opESCAPE_dc_a16,opESCAPE_dd_a16,opESCAPE_de_a16,opESCAPE_df_a16,
/*e0*/ opLOOPNE_w, opLOOPE_w, opLOOP_w, opJCXZ, opIN_AL_imm, opIN_AX_imm, opOUT_AL_imm, opOUT_AX_imm, opCALL_r16, opJMP_r16, opJMP_far_a16, opJMP_r8, opIN_AL_DX, opIN_AX_DX, opOUT_AL_DX, opOUT_AX_DX,
/*f0*/ opLOCK, ILLEGAL, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*f0*/ opLOCK, opINT1, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_w_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_w_a16,
/*32-bit data, 16-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
@ -863,7 +863,7 @@ OpFn OP_TABLE(386)[1024] =
/*c0*/ opC0_a16, opC1_l_a16, opRET_l_imm, opRET_l, opLES_l_a16, opLDS_l_a16, opMOV_b_imm_a16,opMOV_l_imm_a16,opENTER_l, opLEAVE_l, opRETF_a32_imm, opRETF_a32, opINT3, opINT, opINTO, opIRETD,
/*d0*/ opD0_a16, opD1_l_a16, opD2_a16, opD3_l_a16, opAAM, opAAD, opSETALC, opXLAT_a16, opESCAPE_d8_a16,opESCAPE_d9_a16,opESCAPE_da_a16,opESCAPE_db_a16,opESCAPE_dc_a16,opESCAPE_dd_a16,opESCAPE_de_a16,opESCAPE_df_a16,
/*e0*/ opLOOPNE_w, opLOOPE_w, opLOOP_w, opJCXZ, opIN_AL_imm, opIN_EAX_imm, opOUT_AL_imm, opOUT_EAX_imm, opCALL_r32, opJMP_r32, opJMP_far_a32, opJMP_r8, opIN_AL_DX, opIN_EAX_DX, opOUT_AL_DX, opOUT_EAX_DX,
/*f0*/ opLOCK, ILLEGAL, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_l_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_l_a16,
/*f0*/ opLOCK, opINT1, opREPNE, opREPE, opHLT, opCMC, opF6_a16, opF7_l_a16, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a16, opFF_l_a16,
/*16-bit data, 32-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
@ -885,7 +885,7 @@ OpFn OP_TABLE(386)[1024] =
/*c0*/ opC0_a32, opC1_w_a32, opRET_w_imm, opRET_w, opLES_w_a32, opLDS_w_a32, opMOV_b_imm_a32,opMOV_w_imm_a32,opENTER_w, opLEAVE_w, opRETF_a16_imm, opRETF_a16, opINT3, opINT, opINTO, opIRET,
/*d0*/ opD0_a32, opD1_w_a32, opD2_a32, opD3_w_a32, opAAM, opAAD, opSETALC, opXLAT_a32, opESCAPE_d8_a32,opESCAPE_d9_a32,opESCAPE_da_a32,opESCAPE_db_a32,opESCAPE_dc_a32,opESCAPE_dd_a32,opESCAPE_de_a32,opESCAPE_df_a32,
/*e0*/ opLOOPNE_l, opLOOPE_l, opLOOP_l, opJECXZ, opIN_AL_imm, opIN_AX_imm, opOUT_AL_imm, opOUT_AX_imm, opCALL_r16, opJMP_r16, opJMP_far_a16, opJMP_r8, opIN_AL_DX, opIN_AX_DX, opOUT_AL_DX, opOUT_AX_DX,
/*f0*/ opLOCK, ILLEGAL, opREPNE, opREPE, opHLT, opCMC, opF6_a32, opF7_w_a32, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a32, opFF_w_a32,
/*f0*/ opLOCK, opINT1, opREPNE, opREPE, opHLT, opCMC, opF6_a32, opF7_w_a32, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a32, opFF_w_a32,
/*32-bit data, 32-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
@ -907,7 +907,7 @@ OpFn OP_TABLE(386)[1024] =
/*c0*/ opC0_a32, opC1_l_a32, opRET_l_imm, opRET_l, opLES_l_a32, opLDS_l_a32, opMOV_b_imm_a32,opMOV_l_imm_a32,opENTER_l, opLEAVE_l, opRETF_a32_imm, opRETF_a32, opINT3, opINT, opINTO, opIRETD,
/*d0*/ opD0_a32, opD1_l_a32, opD2_a32, opD3_l_a32, opAAM, opAAD, opSETALC, opXLAT_a32, opESCAPE_d8_a32,opESCAPE_d9_a32,opESCAPE_da_a32,opESCAPE_db_a32,opESCAPE_dc_a32,opESCAPE_dd_a32,opESCAPE_de_a32,opESCAPE_df_a32,
/*e0*/ opLOOPNE_l, opLOOPE_l, opLOOP_l, opJECXZ, opIN_AL_imm, opIN_EAX_imm, opOUT_AL_imm, opOUT_EAX_imm, opCALL_r32, opJMP_r32, opJMP_far_a32, opJMP_r8, opIN_AL_DX, opIN_EAX_DX, opOUT_AL_DX, opOUT_EAX_DX,
/*f0*/ opLOCK, ILLEGAL, opREPNE, opREPE, opHLT, opCMC, opF6_a32, opF7_l_a32, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a32, opFF_l_a32,
/*f0*/ opLOCK, opINT1, opREPNE, opREPE, opHLT, opCMC, opF6_a32, opF7_l_a32, opCLC, opSTC, opCLI, opSTI, opCLD, opSTD, opINCDEC_b_a32, opFF_l_a32,
};
#include "x87_ops.h"

2
src/808x.c
View file

@ -3025,6 +3025,7 @@ void execx86(int cycs)
switch (rmdat&0x38)
{
case 0x00: /*TEST b,#8*/
case 0x08:
temp2=FETCH();
temp&=temp2;
setznp8(temp);
@ -3163,6 +3164,7 @@ void execx86(int cycs)
switch (rmdat&0x38)
{
case 0x00: /*TEST w*/
case 0x08:
tempw2=getword();
setznp16(tempw&tempw2);
flags&=~(C_FLAG|V_FLAG|A_FLAG);

14
src/x86_ops_int.h
View file

@ -12,6 +12,20 @@ static int opINT3(uint32_t fetchdat)
return 1;
}
static int opINT1(uint32_t fetchdat)
{
int cycles_old = cycles; UNUSED(cycles_old);
if ((cr0 & 1) && (eflags & VM_FLAG) && (IOPL != 3))
{
x86gpf(NULL,0);
return 1;
}
x86_int_sw(1);
CLOCK_CYCLES((is486) ? 44 : 59);
PREFETCH_RUN(cycles_old-cycles, 1, -1, 0,0,0,0, 0);
return 1;
}
static int opINT(uint32_t fetchdat)
{
int cycles_old = cycles; UNUSED(cycles_old);

35
src/x86_ops_misc.h
View file

@ -56,6 +56,7 @@ static int opF6_a16(uint32_t fetchdat)
switch (rmdat & 0x38)
{
case 0x00: /*TEST b,#8*/
case 0x08:
src = readmemb(cs, cpu_state.pc); cpu_state.pc++; if (cpu_state.abrt) return 1;
setznp8(src & dst);
if (is486) CLOCK_CYCLES((cpu_mod == 3) ? 1 : 2);
@ -153,6 +154,7 @@ static int opF6_a32(uint32_t fetchdat)
switch (rmdat & 0x38)
{
case 0x00: /*TEST b,#8*/
case 0x08:
src = readmemb(cs, cpu_state.pc); cpu_state.pc++; if (cpu_state.abrt) return 1;
setznp8(src & dst);
if (is486) CLOCK_CYCLES((cpu_mod == 3) ? 1 : 2);
@ -253,6 +255,7 @@ static int opF7_w_a16(uint32_t fetchdat)
switch (rmdat & 0x38)
{
case 0x00: /*TEST w*/
case 0x08:
src = getword(); if (cpu_state.abrt) return 1;
setznp16(src & dst);
if (is486) CLOCK_CYCLES((cpu_mod == 3) ? 1 : 2);
@ -346,6 +349,7 @@ static int opF7_w_a32(uint32_t fetchdat)
switch (rmdat & 0x38)
{
case 0x00: /*TEST w*/
case 0x08:
src = getword(); if (cpu_state.abrt) return 1;
setznp16(src & dst);
if (is486) CLOCK_CYCLES((cpu_mod == 3) ? 1 : 2);
@ -439,6 +443,7 @@ static int opF7_l_a16(uint32_t fetchdat)
switch (rmdat & 0x38)
{
case 0x00: /*TEST l*/
case 0x08:
src = getlong(); if (cpu_state.abrt) return 1;
setznp32(src & dst);
if (is486) CLOCK_CYCLES((cpu_mod == 3) ? 1 : 2);
@ -508,6 +513,7 @@ static int opF7_l_a32(uint32_t fetchdat)
switch (rmdat & 0x38)
{
case 0x00: /*TEST l*/
case 0x08:
src = getlong(); if (cpu_state.abrt) return 1;
setznp32(src & dst);
if (is486) CLOCK_CYCLES((cpu_mod == 3) ? 1 : 2);
@ -721,13 +727,19 @@ static int opWBINVD(uint32_t fetchdat)
return 0;
}
static int opLOADALL(uint32_t fetchdat)
{
if (CPL && (cr0&1))
{
x86gpf(NULL,0);
return 1;
}
msw = readmemw(0, 0x806);
flags = (readmemw(0, 0x818) & 0xffd5) | 2;
flags_extract();
tr.seg = readmemw(0, 0x816);
cpu_state.pc = readmemw(0, 0x81A);
ldt.seg = readmemw(0, 0x81C);
DS = readmemw(0, 0x81E);
SS = readmemw(0, 0x820);
CS = readmemw(0, 0x822);
@ -741,10 +753,29 @@ static int opLOADALL(uint32_t fetchdat)
CX = readmemw(0, 0x832);
AX = readmemw(0, 0x834);
es = readmemw(0, 0x836) | (readmemb(0, 0x838) << 16);
_es.access = readmemb(0, 0x839);
_es.limit = readmemw(0, 0x83A);
cs = readmemw(0, 0x83C) | (readmemb(0, 0x83E) << 16);
_cs.access = readmemb(0, 0x83F);
_cs.limit = readmemw(0, 0x840);
ss = readmemw(0, 0x842) | (readmemb(0, 0x844) << 16);
_ss.access = readmemb(0, 0x845);
_ss.limit = readmemw(0, 0x846);
ds = readmemw(0, 0x848) | (readmemb(0, 0x84A) << 16);
_ds.access = readmemb(0, 0x84B);
_ds.limit = readmemw(0, 0x84C);
gdt.base = readmemw(0, 0x84E) | (readmemb(0, 0x850) << 16);
gdt.limit = readmemw(0, 0x852);
ldt.base = readmemw(0, 0x854) | (readmemb(0, 0x856) << 16);
ldt.access = readmemb(0, 0x857);
ldt.limit = readmemw(0, 0x858);
idt.base = readmemw(0, 0x85A) | (readmemb(0, 0x85C) << 16);
idt.limit = readmemw(0, 0x85E);
tr.base = readmemw(0, 0x860) | (readmemb(0, 0x862) << 16);
tr.access = readmemb(0, 0x863);
tr.limit = readmemw(0, 0x864);
CLOCK_CYCLES(195);
PREFETCH_RUN(195, 1, -1, 51,0,0,0, 0);
return 0;
}

6
src/x86_ops_pmode.h
View file

@ -350,8 +350,9 @@ static int op0F01_common(uint32_t fetchdat, int is32, int is286, int ea32)
break;
case 0x20: /*SMSW*/
if (is486) seteaw(msw);
else seteaw(msw | 0xFF00);
if (is486) seteaw(msw);
else if (is386) seteaw(msw | 0xFF00);
else seteaw(msw | 0xFFF0);
CLOCK_CYCLES(2);
PREFETCH_RUN(2, 2, rmdat, 0,0,(cpu_mod == 3) ? 0:1,0, ea32);
break;
@ -364,6 +365,7 @@ static int op0F01_common(uint32_t fetchdat, int is32, int is286, int ea32)
}
tempw = geteaw(); if (cpu_state.abrt) return 1;
if (msw & 1) tempw |= 1;
if (!is386) tempw &= 0xF;
msw = tempw;
PREFETCH_RUN(2, 2, rmdat, 0,0,(cpu_mod == 3) ? 0:1,0, ea32);
break;