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Add SYSENTER and SYSEXIT instructions

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This commit is contained in:
SarahW 2020-06-29 22:19:41 +01:00
commit 7eff4f4ba8
8 changed files with 224 additions and 9 deletions
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29
src/cpu.c
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@ -1056,7 +1056,7 @@ void cpu_set()
break;
case CPU_PENTIUM_2:
x86_setopcodes(ops_386, ops_c6x86mx_0f, dynarec_ops_386, dynarec_ops_c6x86mx_0f);
x86_setopcodes(ops_386, ops_pentium2_0f, dynarec_ops_386, dynarec_ops_pentium2_0f);
x86_dynarec_opcodes_da_a16 = dynarec_ops_fpu_686_da_a16;
x86_dynarec_opcodes_da_a32 = dynarec_ops_fpu_686_da_a32;
x86_dynarec_opcodes_db_a16 = dynarec_ops_fpu_686_db_a16;
@ -1638,7 +1638,7 @@ void cpu_CPUID()
{
EAX = CPUID;
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
EAX = EBX = ECX = EDX = 0;
@ -1656,7 +1656,7 @@ void cpu_CPUID()
{
EAX = CPUID;
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
EAX = EBX = ECX = EDX = 0;
@ -1745,6 +1745,19 @@ void cpu_RDMSR()
EAX = tsc & 0xffffffff;
EDX = tsc >> 32;
break;
case 0x174:
EAX = sysenter_cs;
EDX = 0;
break;
case 0x175:
EAX = sysenter_esp;
EDX = 0;
break;
case 0x176:
EAX = sysenter_eip;
EDX = 0;
break;
}
break;
}
@ -1837,6 +1850,16 @@ void cpu_WRMSR()
case 0x10:
tsc = EAX | ((uint64_t)EDX << 32);
break;
case 0x174:
sysenter_cs = EAX & 0xffff;
break;
case 0x175:
sysenter_esp = EAX;
break;
case 0x176:
sysenter_eip = EAX;
break;
}
break;
}