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Added AMD K6-2+ and K6-III+ 3DNow! DSP Extensions.

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This commit is contained in:
OBattler
2022-11-06 04:50:13 +01:00
parent 95210fafbb
commit fc53fceda7
4 changed files with 107 additions and 9 deletions
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12
src/cpu/cpu.c
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@@ -68,7 +68,8 @@ enum {
};
/*Addition flags returned by CPUID function 0x80000001*/
#define CPUID_3DNOW (1UL << 31UL)
#define CPUID_3DNOW (1UL << 31UL)
#define CPUID_3DNOWE (1UL << 30UL)
/* Make sure this is as low as possible. */
cpu_state_t cpu_state;
@@ -1167,6 +1168,11 @@ cpu_set(void)
# endif
#endif
if ((cpu_s->cpu_type == CPU_K6_2P) || (cpu_s->cpu_type == CPU_K6_3P)) {
x86_opcodes_3DNOW = ops_3DNOWE;
x86_dynarec_opcodes_3DNOW = dynarec_ops_3DNOWE;
}
timing_rr = 1; /* register dest - register src */
timing_rm = 2; /* register dest - memory src */
timing_mr = 3; /* memory dest - register src */
@@ -1202,6 +1208,8 @@ cpu_set(void)
cpu_features = CPU_FEATURE_RDTSC | CPU_FEATURE_MSR | CPU_FEATURE_CR4 | CPU_FEATURE_VME | CPU_FEATURE_MMX;
if (cpu_s->cpu_type >= CPU_K6_2)
cpu_features |= CPU_FEATURE_3DNOW;
if ((cpu_s->cpu_type == CPU_K6_2P) || (cpu_s->cpu_type == CPU_K6_3P))
cpu_features |= CPU_FEATURE_3DNOWE;
msr.fcr = (1 << 8) | (1 << 9) | (1 << 12) | (1 << 16) | (1 << 19) | (1 << 21);
#if defined(DEV_BRANCH) && defined(USE_AMD_K5)
cpu_CR4_mask = CR4_TSD | CR4_DE | CR4_MCE;
@@ -1831,7 +1839,7 @@ cpu_CPUID(void)
case 0x80000001:
EAX = CPUID + 0x100;
EBX = ECX = 0;
EDX = CPUID_FPU | CPUID_VME | CPUID_PSE | CPUID_TSC | CPUID_MSR | CPUID_MCE | CPUID_CMPXCHG8B | CPUID_AMDSEP | CPUID_MMX | CPUID_3DNOW;
EDX = CPUID_FPU | CPUID_VME | CPUID_PSE | CPUID_TSC | CPUID_MSR | CPUID_MCE | CPUID_CMPXCHG8B | CPUID_AMDSEP | CPUID_MMX | CPUID_3DNOW | CPUID_3DNOWE;
break;
case 0x80000002: /* Processor name string */
EAX = 0x2d444d41; /* AMD-K6(tm)-III P */