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Fixed SGDT/SIDT on 286, Windows 3.0 detects CPU correctly again.

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This commit is contained in:
TomW 2014-09-05 21:40:21 +01:00
commit 20581186b9
2 changed files with 23 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

14
src/386_ops.h
View file

@ -190,7 +190,7 @@ OpFn ops_286_0f[1024] =
{
/*16-bit data, 16-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
/*00*/ op0F00_a16, op0F01_w_a16, opLAR_w_a16, opLSL_w_a16, ILLEGAL, opLOADALL, opCLTS, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*00*/ op0F00_a16, op0F01_286, opLAR_w_a16, opLSL_w_a16, ILLEGAL, opLOADALL, opCLTS, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*10*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*20*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*30*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
@ -212,9 +212,9 @@ OpFn ops_286_0f[1024] =
/*32-bit data, 16-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
/*00*/ op0F00_a16, op0F01_w_a16, opLAR_w_a16, opLSL_w_a16, ILLEGAL, opLOADALL, opCLTS, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*00*/ op0F00_a16, op0F01_286, opLAR_w_a16, opLSL_w_a16, ILLEGAL, opLOADALL, opCLTS, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*10*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*20*/ opMOV_r_CRx_a16,opMOV_r_DRx_a16,opMOV_CRx_r_a16,opMOV_DRx_r_a16,opMOV_r_TRx_a16,opMOV_TRx_r_a16,ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*20*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*30*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*40*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
@ -234,9 +234,9 @@ OpFn ops_286_0f[1024] =
/*16-bit data, 32-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
/*00*/ op0F00_a16, op0F01_w_a16, opLAR_w_a16, opLSL_w_a16, ILLEGAL, opLOADALL, opCLTS, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*00*/ op0F00_a16, op0F01_286, opLAR_w_a16, opLSL_w_a16, ILLEGAL, opLOADALL, opCLTS, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*10*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*20*/ opMOV_r_CRx_a16,opMOV_r_DRx_a16,opMOV_CRx_r_a16,opMOV_DRx_r_a16,opMOV_r_TRx_a16,opMOV_TRx_r_a16,ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*20*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*30*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*40*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
@ -256,9 +256,9 @@ OpFn ops_286_0f[1024] =
/*32-bit data, 32-bit addr*/
/* 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f*/
/*00*/ op0F00_a16, op0F01_w_a16, opLAR_w_a16, opLSL_w_a16, ILLEGAL, opLOADALL, opCLTS, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*00*/ op0F00_a16, op0F01_286, opLAR_w_a16, opLSL_w_a16, ILLEGAL, opLOADALL, opCLTS, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*10*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*20*/ opMOV_r_CRx_a16,opMOV_r_DRx_a16,opMOV_CRx_r_a16,opMOV_DRx_r_a16,opMOV_r_TRx_a16,opMOV_TRx_r_a16,ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*20*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*30*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,
/*40*/ ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL,

21
src/x86_ops_pmode.h
View file

@ -281,7 +281,7 @@ static inline op0F00_a32(uint32_t fetchdat)
return 0;
}
static inline op0F01_common(uint32_t fetchdat, int is32)
static inline op0F01_common(uint32_t fetchdat, int is32, int is286)
{
uint32_t base;
uint16_t limit, tempw;
@ -291,12 +291,16 @@ static inline op0F01_common(uint32_t fetchdat, int is32)
case 0x00: /*SGDT*/
seteaw(gdt.limit);
base = is32 ? gdt.base : (gdt.base & 0xffffff);
if (is286)
base |= 0xff000000;
writememl(easeg, eaaddr + 2, base);
cycles -= 7;
break;
case 0x08: /*SIDT*/
seteaw(idt.limit);
base = is32 ? idt.base : (idt.base & 0xffffff);
if (is286)
base |= 0xff000000;
writememl(easeg, eaaddr + 2, base);
cycles -= 7;
break;
@ -377,28 +381,35 @@ static inline op0F01_w_a16(uint32_t fetchdat)
{
fetch_ea_16(fetchdat);
op0F01_common(fetchdat, 0);
op0F01_common(fetchdat, 0, 0);
return 0;
}
static inline op0F01_w_a32(uint32_t fetchdat)
{
fetch_ea_32(fetchdat);
op0F01_common(fetchdat, 0);
op0F01_common(fetchdat, 0, 0);
return 0;
}
static inline op0F01_l_a16(uint32_t fetchdat)
{
fetch_ea_16(fetchdat);
op0F01_common(fetchdat, 1);
op0F01_common(fetchdat, 1, 0);
return 0;
}
static inline op0F01_l_a32(uint32_t fetchdat)
{
fetch_ea_32(fetchdat);
op0F01_common(fetchdat, 1);
op0F01_common(fetchdat, 1, 0);
return 0;
}
static inline op0F01_286(uint32_t fetchdat)
{
fetch_ea_16(fetchdat);
op0F01_common(fetchdat, 0, 1);
return 0;
}