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Implement CPUID cache register for Pentium Pro/II.

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This commit is contained in:
SarahW 2020-06-30 21:07:21 +01:00
commit bf68656e8f
1 changed files with 16 additions and 2 deletions
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18
src/cpu.c
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@ -1629,7 +1629,7 @@ void cpu_CPUID()
case CPU_PENTIUMPRO: case CPU_PENTIUMPRO:
if (!EAX) if (!EAX)
{ {
EAX = 0x00000001; EAX = 0x00000002;
EBX = 0x756e6547; EBX = 0x756e6547;
EDX = 0x49656e69; EDX = 0x49656e69;
ECX = 0x6c65746e; ECX = 0x6c65746e;
@ -1640,6 +1640,13 @@ void cpu_CPUID()
EBX = ECX = 0; EBX = ECX = 0;
EDX = CPUID_FPU | CPUID_VME | CPUID_PSE | CPUID_TSC | CPUID_MSR | CPUID_CMPXCHG8B | CPUID_CMOV | CPUID_SEP; EDX = CPUID_FPU | CPUID_VME | CPUID_PSE | CPUID_TSC | CPUID_MSR | CPUID_CMPXCHG8B | CPUID_CMOV | CPUID_SEP;
} }
else if (EAX == 2)
{
EAX = 0x03020101;
EBX = 0;
ECX = 0;
EDX = 0x06040a42;
}
else else
EAX = EBX = ECX = EDX = 0; EAX = EBX = ECX = EDX = 0;
break; break;
@ -1647,7 +1654,7 @@ void cpu_CPUID()
case CPU_PENTIUM_2: case CPU_PENTIUM_2:
if (!EAX) if (!EAX)
{ {
EAX = 0x00000001; EAX = 0x00000002;
EBX = 0x756e6547; EBX = 0x756e6547;
EDX = 0x49656e69; EDX = 0x49656e69;
ECX = 0x6c65746e; ECX = 0x6c65746e;
@ -1658,6 +1665,13 @@ void cpu_CPUID()
EBX = ECX = 0; EBX = ECX = 0;
EDX = CPUID_FPU | CPUID_VME | CPUID_PSE | CPUID_TSC | CPUID_MSR | CPUID_CMPXCHG8B | CPUID_CMOV | CPUID_MMX | CPUID_SEP; EDX = CPUID_FPU | CPUID_VME | CPUID_PSE | CPUID_TSC | CPUID_MSR | CPUID_CMPXCHG8B | CPUID_CMOV | CPUID_MMX | CPUID_SEP;
} }
else if (EAX == 2)
{
EAX = 0x03020101;
EBX = 0;
ECX = 0;
EDX = 0x08040c43;
}
else else
EAX = EBX = ECX = EDX = 0; EAX = EBX = ECX = EDX = 0;
break; break;