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Merge pull request #12317 from devnexen/mac_m1_cpu_features 

cpu detection detection vfp unit for Darwin.
This commit is contained in:
Autechre 2021-04-25 23:43:57 +02:00 committed by GitHub
parent d2af1e905c 6f898e611c
commit 9d13b090d8
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 6 deletions
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23
libretro-common/features/features_cpu.c
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@ -602,18 +602,20 @@ uint64_t cpu_features_get(void)
#endif
#if defined(__MACH__)
size_t len = sizeof(size_t);
if (sysctlbyname("hw.optional.floatingpoint", NULL, &len, NULL, 0) == 0)
{
cpu |= RETRO_SIMD_CMOV;
}
#if defined(CPU_X86)
len = sizeof(size_t);
if (sysctlbyname("hw.optional.mmx", NULL, &len, NULL, 0) == 0)
{
cpu |= RETRO_SIMD_MMX;
cpu |= RETRO_SIMD_MMXEXT;
}
len = sizeof(size_t);
if (sysctlbyname("hw.optional.floatingpoint", NULL, &len, NULL, 0) == 0)
{
cpu |= RETRO_SIMD_CMOV;
}
len = sizeof(size_t);
if (sysctlbyname("hw.optional.sse", NULL, &len, NULL, 0) == 0)
cpu |= RETRO_SIMD_SSE;
@ -654,10 +656,19 @@ uint64_t cpu_features_get(void)
if (sysctlbyname("hw.optional.altivec", NULL, &len, NULL, 0) == 0)
cpu |= RETRO_SIMD_VMX;
#else
len = sizeof(size_t);
if (sysctlbyname("hw.optional.neon", NULL, &len, NULL, 0) == 0)
cpu |= RETRO_SIMD_NEON;
len = sizeof(size_t);
if (sysctlbyname("hw.optional.neon_fp16", NULL, &len, NULL, 0) == 0)
cpu |= RETRO_SIMD_VFPV3;
len = sizeof(size_t);
if (sysctlbyname("hw.optional.neon_hpfp", NULL, &len, NULL, 0) == 0)
cpu |= RETRO_SIMD_VFPV4;
#endif
#elif defined(_XBOX1)
cpu |= RETRO_SIMD_MMX;
cpu |= RETRO_SIMD_SSE;