diff options
| author | Brian Paul <[email protected]> | 2011-04-07 13:41:52 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2011-04-07 13:41:52 -0600 |
| commit | 1e105741f1e0ae4946febb41c844ed5741a54ec1 (patch) | |
| tree | ce839b759cce0b0adb5b92b4e440f33a94fd0ad3 | |
| parent | 6638b4a590aa07dbe05f6647da90a00a4c0d57a8 (diff) | |
util: simplify bit shifting in util_cpu_detect()
| -rw-r--r-- | src/gallium/auxiliary/util/u_cpu_detect.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/gallium/auxiliary/util/u_cpu_detect.c b/src/gallium/auxiliary/util/u_cpu_detect.c index 32519b148b6..c9d5a9e6dd1 100644 --- a/src/gallium/auxiliary/util/u_cpu_detect.c +++ b/src/gallium/auxiliary/util/u_cpu_detect.c @@ -270,13 +270,13 @@ util_cpu_detect(void) util_cpu_caps.x86_cpu_type = 8 + ((regs2[0] >> 20) & 255); /* use extended family (P4, IA64) */ /* general feature flags */ - util_cpu_caps.has_tsc = (regs2[3] & (1 << 8 )) >> 8; /* 0x0000010 */ - util_cpu_caps.has_mmx = (regs2[3] & (1 << 23 )) >> 23; /* 0x0800000 */ - util_cpu_caps.has_sse = (regs2[3] & (1 << 25 )) >> 25; /* 0x2000000 */ - util_cpu_caps.has_sse2 = (regs2[3] & (1 << 26 )) >> 26; /* 0x4000000 */ - util_cpu_caps.has_sse3 = (regs2[2] & (1)); /* 0x0000001 */ - util_cpu_caps.has_ssse3 = (regs2[2] & (1 << 9 )) >> 9; /* 0x0000020 */ - util_cpu_caps.has_sse4_1 = (regs2[2] & (1 << 19)) >> 19; + util_cpu_caps.has_tsc = (regs2[3] >> 8) & 1; /* 0x0000010 */ + util_cpu_caps.has_mmx = (regs2[3] >> 23) & 1; /* 0x0800000 */ + util_cpu_caps.has_sse = (regs2[3] >> 25) & 1; /* 0x2000000 */ + util_cpu_caps.has_sse2 = (regs2[3] >> 26) & 1; /* 0x4000000 */ + util_cpu_caps.has_sse3 = (regs2[2] >> 0) & 1; /* 0x0000001 */ + util_cpu_caps.has_ssse3 = (regs2[2] >> 9) & 1; /* 0x0000020 */ + util_cpu_caps.has_sse4_1 = (regs2[2] >> 19) & 1; util_cpu_caps.has_mmx2 = util_cpu_caps.has_sse; /* SSE cpus supports mmxext too */ cacheline = ((regs2[1] >> 8) & 0xFF) * 8; @@ -290,10 +290,10 @@ util_cpu_detect(void) cpuid(0x80000001, regs2); - util_cpu_caps.has_mmx |= (regs2[3] & (1 << 23 )) >> 23; /* 0x0800000 */ - util_cpu_caps.has_mmx2 |= (regs2[3] & (1 << 22 )) >> 22; /* 0x400000 */ - util_cpu_caps.has_3dnow = (regs2[3] & (1 << 31 )) >> 31; /* 0x80000000 */ - util_cpu_caps.has_3dnow_ext = (regs2[3] & (1 << 30 )) >> 30; + util_cpu_caps.has_mmx |= (regs2[3] >> 23) & 1; + util_cpu_caps.has_mmx2 |= (regs2[3] >> 22) & 1; + util_cpu_caps.has_3dnow = (regs2[3] >> 31) & 1; + util_cpu_caps.has_3dnow_ext = (regs2[3] >> 30) & 1; } if (regs[0] >= 0x80000006) { |