cpu: Fix AVX2 support checkmain

AVX2 is identified through CPUID(EAX=7,ECX=0)[EBX:5]

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/main.c b/src/main.c
index e8e736f..a9f9167 100644
--- a/src/main.c
+++ b/src/main.c
@@ -111,9 +111,9 @@ is_sse2_supported(void)
 static inline bool
 is_avx_supported(void)
 {
-    uint32_t ecx, unused;
-    cpuid(0x0000001, unused, unused, ecx, unused);
-    return (ecx & (1 << 28)) != 0;
+    uint32_t ebx, unused;
+    cpuid(0x0000001, unused, ebx, unused, unused);
+    return (ebx & (1 << 5)) != 0;
 }
 
 static void