80486DX2-66/86Box-fork
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Correctly implemented the CMPXCHG8B instruction for the WinChip.

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This commit is contained in:
OBattler
2017-08-16 01:04:44 +02:00
parent 28019344cc
commit b918ee2b47
5 changed files with 21 additions and 13 deletions
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8
src/CPU/386_ops.h
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@@ -519,7 +519,7 @@ OpFn OP_TABLE(winchip_0f)[1024] =
/*a0*/ opPUSH_FS_w, opPOP_FS_w, opCPUID, opBT_w_r_a16, opSHLD_w_i_a16, opSHLD_w_CL_a16,ILLEGAL, ILLEGAL, opPUSH_GS_w, opPOP_GS_w, ILLEGAL, opBTS_w_r_a16, opSHRD_w_i_a16, opSHRD_w_CL_a16,ILLEGAL, opIMUL_w_w_a16,
/*b0*/ opCMPXCHG_b_a16,opCMPXCHG_w_a16,opLSS_w_a16, opBTR_w_r_a16, opLFS_w_a16, opLGS_w_a16, opMOVZX_w_b_a16,opMOVZX_w_w_a16,ILLEGAL, ILLEGAL, opBA_w_a16, opBTC_w_r_a16, opBSF_w_a16, opBSR_w_a16, opMOVSX_w_b_a16,ILLEGAL,
/*c0*/ opXADD_b_a16, opXADD_w_a16, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opBSWAP_EAX, opBSWAP_ECX, opBSWAP_EDX, opBSWAP_EBX, opBSWAP_ESP, opBSWAP_EBP, opBSWAP_ESI, opBSWAP_EDI,
/*c0*/ opXADD_b_a16, opXADD_w_a16, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opCMPXCHG8B_a16,opBSWAP_EAX, opBSWAP_ECX, opBSWAP_EDX, opBSWAP_EBX, opBSWAP_ESP, opBSWAP_EBP, opBSWAP_ESI, opBSWAP_EDI,
/*d0*/ ILLEGAL, opPSRLW_a16, opPSRLD_a16, opPSRLQ_a16, ILLEGAL, opPMULLW_a16, ILLEGAL, ILLEGAL, opPSUBUSB_a16, opPSUBUSW_a16, NULL, opPAND_a16, opPADDUSB_a16, opPADDUSW_a16, NULL, opPANDN_a16,
/*e0*/ ILLEGAL, opPSRAW_a16, opPSRAD_a16, ILLEGAL, ILLEGAL, opPMULHW_a16, ILLEGAL, ILLEGAL, opPSUBSB_a16, opPSUBSW_a16, NULL, opPOR_a16, opPADDSB_a16, opPADDSW_a16, NULL, opPXOR_a16,
/*f0*/ ILLEGAL, opPSLLW_a16, opPSLLD_a16, opPSLLQ_a16, ILLEGAL, opPMADDWD_a16, ILLEGAL, ILLEGAL, opPSUBB_a16, opPSUBW_a16, opPSUBD_a16, ILLEGAL, opPADDB_a16, opPADDW_a16, opPADDD_a16, ILLEGAL,
@@ -541,7 +541,7 @@ OpFn OP_TABLE(winchip_0f)[1024] =
/*a0*/ opPUSH_FS_l, opPOP_FS_l, opCPUID, opBT_l_r_a16, opSHLD_l_i_a16, opSHLD_l_CL_a16,ILLEGAL, ILLEGAL, opPUSH_GS_l, opPOP_GS_l, ILLEGAL, opBTS_l_r_a16, opSHRD_l_i_a16, opSHRD_l_CL_a16,ILLEGAL, opIMUL_l_l_a16,
/*b0*/ opCMPXCHG_b_a16,opCMPXCHG_l_a16,opLSS_l_a16, opBTR_l_r_a16, opLFS_l_a16, opLGS_l_a16, opMOVZX_l_b_a16,opMOVZX_l_w_a16,ILLEGAL, ILLEGAL, opBA_l_a16, opBTC_l_r_a16, opBSF_l_a16, opBSR_l_a16, opMOVSX_l_b_a16,opMOVSX_l_w_a16,
/*c0*/ opXADD_b_a16, opXADD_l_a16, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opBSWAP_EAX, opBSWAP_ECX, opBSWAP_EDX, opBSWAP_EBX, opBSWAP_ESP, opBSWAP_EBP, opBSWAP_ESI, opBSWAP_EDI,
/*c0*/ opXADD_b_a16, opXADD_l_a16, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opCMPXCHG8B_a16,opBSWAP_EAX, opBSWAP_ECX, opBSWAP_EDX, opBSWAP_EBX, opBSWAP_ESP, opBSWAP_EBP, opBSWAP_ESI, opBSWAP_EDI,
/*d0*/ ILLEGAL, opPSRLW_a16, opPSRLD_a16, opPSRLQ_a16, ILLEGAL, opPMULLW_a16, ILLEGAL, ILLEGAL, opPSUBUSB_a16, opPSUBUSW_a16, NULL, opPAND_a16, opPADDUSB_a16, opPADDUSW_a16, NULL, opPANDN_a16,
/*e0*/ ILLEGAL, opPSRAW_a16, opPSRAD_a16, ILLEGAL, ILLEGAL, opPMULHW_a16, ILLEGAL, ILLEGAL, opPSUBSB_a16, opPSUBSW_a16, NULL, opPOR_a16, opPADDSB_a16, opPADDSW_a16, NULL, opPXOR_a16,
/*f0*/ ILLEGAL, opPSLLW_a16, opPSLLD_a16, opPSLLQ_a16, ILLEGAL, opPMADDWD_a16, ILLEGAL, ILLEGAL, opPSUBB_a16, opPSUBW_a16, opPSUBD_a16, ILLEGAL, opPADDB_a16, opPADDW_a16, opPADDD_a16, ILLEGAL,
@@ -563,7 +563,7 @@ OpFn OP_TABLE(winchip_0f)[1024] =
/*a0*/ opPUSH_FS_w, opPOP_FS_w, opCPUID, opBT_w_r_a32, opSHLD_w_i_a32, opSHLD_w_CL_a32,ILLEGAL, ILLEGAL, opPUSH_GS_w, opPOP_GS_w, ILLEGAL, opBTS_w_r_a32, opSHRD_w_i_a32, opSHRD_w_CL_a32,ILLEGAL, opIMUL_w_w_a32,
/*b0*/ opCMPXCHG_b_a32,opCMPXCHG_w_a32,opLSS_w_a32, opBTR_w_r_a32, opLFS_w_a32, opLGS_w_a32, opMOVZX_w_b_a32,opMOVZX_w_w_a32,ILLEGAL, ILLEGAL, opBA_w_a32, opBTC_w_r_a32, opBSF_w_a32, opBSR_w_a32, opMOVSX_w_b_a32,ILLEGAL,
/*c0*/ opXADD_b_a32, opXADD_w_a32, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opBSWAP_EAX, opBSWAP_ECX, opBSWAP_EDX, opBSWAP_EBX, opBSWAP_ESP, opBSWAP_EBP, opBSWAP_ESI, opBSWAP_EDI,
/*c0*/ opXADD_b_a32, opXADD_w_a32, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opCMPXCHG8B_a32,opBSWAP_EAX, opBSWAP_ECX, opBSWAP_EDX, opBSWAP_EBX, opBSWAP_ESP, opBSWAP_EBP, opBSWAP_ESI, opBSWAP_EDI,
/*d0*/ ILLEGAL, opPSRLW_a32, opPSRLD_a32, opPSRLQ_a32, ILLEGAL, opPMULLW_a32, ILLEGAL, ILLEGAL, opPSUBUSB_a32, opPSUBUSW_a32, NULL, opPAND_a32, opPADDUSB_a32, opPADDUSW_a32, NULL, opPANDN_a32,
/*e0*/ ILLEGAL, opPSRAW_a32, opPSRAD_a32, ILLEGAL, ILLEGAL, opPMULHW_a32, ILLEGAL, ILLEGAL, opPSUBSB_a32, opPSUBSW_a32, NULL, opPOR_a32, opPADDSB_a32, opPADDSW_a32, NULL, opPXOR_a32,
/*f0*/ ILLEGAL, opPSLLW_a32, opPSLLD_a32, opPSLLQ_a32, ILLEGAL, opPMADDWD_a32, ILLEGAL, ILLEGAL, opPSUBB_a32, opPSUBW_a32, opPSUBD_a32, ILLEGAL, opPADDB_a32, opPADDW_a32, opPADDD_a32, ILLEGAL,
@@ -585,7 +585,7 @@ OpFn OP_TABLE(winchip_0f)[1024] =
/*a0*/ opPUSH_FS_l, opPOP_FS_l, opCPUID, opBT_l_r_a32, opSHLD_l_i_a32, opSHLD_l_CL_a32,ILLEGAL, ILLEGAL, opPUSH_GS_l, opPOP_GS_l, ILLEGAL, opBTS_l_r_a32, opSHRD_l_i_a32, opSHRD_l_CL_a32,ILLEGAL, opIMUL_l_l_a32,
/*b0*/ opCMPXCHG_b_a32,opCMPXCHG_l_a32,opLSS_l_a32, opBTR_l_r_a32, opLFS_l_a32, opLGS_l_a32, opMOVZX_l_b_a32,opMOVZX_l_w_a32,ILLEGAL, ILLEGAL, opBA_l_a32, opBTC_l_r_a32, opBSF_l_a32, opBSR_l_a32, opMOVSX_l_b_a32,opMOVSX_l_w_a32,
/*c0*/ opXADD_b_a32, opXADD_l_a32, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opBSWAP_EAX, opBSWAP_ECX, opBSWAP_EDX, opBSWAP_EBX, opBSWAP_ESP, opBSWAP_EBP, opBSWAP_ESI, opBSWAP_EDI,
/*c0*/ opXADD_b_a32, opXADD_l_a32, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, ILLEGAL, opCMPXCHG8B_a32,opBSWAP_EAX, opBSWAP_ECX, opBSWAP_EDX, opBSWAP_EBX, opBSWAP_ESP, opBSWAP_EBP, opBSWAP_ESI, opBSWAP_EDI,
/*d0*/ ILLEGAL, opPSRLW_a32, opPSRLD_a32, opPSRLQ_a32, ILLEGAL, opPMULLW_a32, ILLEGAL, ILLEGAL, opPSUBUSB_a32, opPSUBUSW_a32, NULL, opPAND_a32, opPADDUSB_a32, opPADDUSW_a32, NULL, opPANDN_a32,
/*e0*/ ILLEGAL, opPSRAW_a32, opPSRAD_a32, ILLEGAL, ILLEGAL, opPMULHW_a32, ILLEGAL, ILLEGAL, opPSUBSB_a32, opPSUBSW_a32, NULL, opPOR_a32, opPADDSB_a32, opPADDSW_a32, NULL, opPXOR_a32,
/*f0*/ ILLEGAL, opPSLLW_a32, opPSLLD_a32, opPSLLQ_a32, ILLEGAL, opPMADDWD_a32, ILLEGAL, ILLEGAL, opPSUBB_a32, opPSUBW_a32, opPSUBD_a32, ILLEGAL, opPADDB_a32, opPADDW_a32, opPADDD_a32, ILLEGAL,

2
src/CPU/808x.c
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@@ -571,6 +571,7 @@ void resetx86()
cpu_cur_status = 0;
stack32=0;
cpu_state.pc=0;
msr.fcr = (1 << 8) | (1 << 9) | (1 << 12) | (1 << 16) | (1 << 19) | (1 << 21);
msw=0;
if (is486)
cr0 = 1 << 30;
@@ -609,6 +610,7 @@ void softresetx86()
stack32=0;
cpu_cur_status = 0;
cpu_state.pc=0;
msr.fcr = (1 << 8) | (1 << 9) | (1 << 12) | (1 << 16) | (1 << 19) | (1 << 21);
msw=0;
cr0=0;
cr4 = 0;

4
src/CPU/codegen_timing_winchip.c
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@@ -74,7 +74,7 @@ static int *opcode_timings_0f[256] =
/*a0*/ CYCLES(3), CYCLES(3), CYCLES(14), CYCLES(8), CYCLES(3), CYCLES(4), NULL, NULL, CYCLES(3), CYCLES(3), NULL, CYCLES(13), CYCLES(3), CYCLES(3), NULL, CYCLES2(18,30),
/*b0*/ CYCLES(10), CYCLES(10), CYCLES(6), CYCLES(13), CYCLES(6), CYCLES(6), CYCLES(3), CYCLES(3), NULL, NULL, CYCLES(6), CYCLES(13), CYCLES(7), CYCLES(7), CYCLES(3), CYCLES(3),
/*c0*/ CYCLES(4), CYCLES(4), NULL, NULL, NULL, NULL, NULL, NULL, CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1),
/*c0*/ CYCLES(4), CYCLES(4), NULL, NULL, NULL, NULL, NULL, CYCLES(3), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1),
/*d0*/ NULL, &timing_rm, &timing_rm, &timing_rm, NULL, &timing_rm, NULL, NULL, &timing_rm, &timing_rm, NULL, &timing_rm, &timing_rm, &timing_rm, NULL, &timing_rm,
/*e0*/ NULL, &timing_rm, &timing_rm, NULL, NULL, &timing_rm, NULL, NULL, &timing_rm, &timing_rm, NULL, &timing_rm, &timing_rm, &timing_rm, NULL, &timing_rm,
/*f0*/ NULL, &timing_rm, &timing_rm, &timing_rm, NULL, &timing_rm, NULL, NULL, &timing_rm, &timing_rm, &timing_rm, NULL, &timing_rm, &timing_rm, &timing_rm, NULL,
@@ -96,7 +96,7 @@ static int *opcode_timings_0f_mod3[256] =
/*a0*/ CYCLES(3), CYCLES(3), CYCLES(14), CYCLES(8), CYCLES(3), CYCLES(4), NULL, NULL, CYCLES(3), CYCLES(3), NULL, CYCLES(13), CYCLES(3), CYCLES(3), NULL, CYCLES2(18,30),
/*b0*/ CYCLES(10), CYCLES(10), CYCLES(6), CYCLES(13), CYCLES(6), CYCLES(6), CYCLES(3), CYCLES(3), NULL, NULL, CYCLES(6), CYCLES(13), CYCLES(7), CYCLES(7), CYCLES(3), CYCLES(3),
/*c0*/ CYCLES(4), CYCLES(4), NULL, NULL, NULL, NULL, NULL, NULL, CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1),
/*c0*/ CYCLES(4), CYCLES(4), NULL, NULL, NULL, NULL, NULL, CYCLES(3), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1), CYCLES(1),
/*d0*/ NULL, &timing_rr, &timing_rr, &timing_rr, NULL, &timing_rr, NULL, NULL, &timing_rr, &timing_rr, NULL, &timing_rr, &timing_rr, &timing_rr, NULL, &timing_rr,
/*e0*/ NULL, &timing_rr, &timing_rr, NULL, NULL, &timing_rr, NULL, NULL, &timing_rr, &timing_rr, NULL, &timing_rr, &timing_rr, &timing_rr, NULL, &timing_rr,
/*f0*/ NULL, &timing_rr, &timing_rr, &timing_rr, NULL, &timing_rr, NULL, NULL, &timing_rr, &timing_rr, &timing_rr, NULL, &timing_rr, &timing_rr, &timing_rr, NULL,

10
src/CPU/cpu.c
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@@ -162,13 +162,7 @@ int timing_retf_rm, timing_retf_pm, timing_retf_pm_outer;
int timing_jmp_rm, timing_jmp_pm, timing_jmp_pm_gate;
int timing_misaligned;
static struct
{
uint32_t tr1, tr12;
uint32_t cesr;
uint32_t fcr;
uint64_t fcr2, fcr3;
} msr;
msr_t msr;
/*Available cpuspeeds :
0 = 16 MHz
@@ -1671,6 +1665,8 @@ void cpu_CPUID()
EAX = 0x540;
EBX = ECX = 0;
EDX = CPUID_FPU | CPUID_TSC | CPUID_MSR;
if (msr.fcr & (1 << 1))
EDX |= CPUID_CMPXCHG8B;
if (msr.fcr & (1 << 9))
EDX |= CPUID_MMX;
}

10
src/CPU/cpu.h
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@@ -187,4 +187,14 @@ extern int isa_cycles;
void cpu_update_waitstates();
void cpu_set();
typedef struct
{
uint32_t tr1, tr12;
uint32_t cesr;
uint32_t fcr;
uint64_t fcr2, fcr3;
} msr_t;
extern msr_t msr;
#endif