diff options
Diffstat (limited to 'kernel/src/cpu/sse.asm')
| -rw-r--r-- | kernel/src/cpu/sse.asm | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/kernel/src/cpu/sse.asm b/kernel/src/cpu/sse.asm new file mode 100644 index 0000000..e7b5a99 --- /dev/null +++ b/kernel/src/cpu/sse.asm @@ -0,0 +1,22 @@ +global sse_init + +sse_init: + mov eax, 0x1 + cpuid + test edx, 1<<25 + jmp no_sse + + mov eax, cr0 + and ax, 0xFFFB + or ax, 0x2 + mov cr0, eax + mov eax, cr4 + or ax, 3 << 9 + mov cr4, eax + + mov eax, 0 + ret + +no_sse: + mov eax, 1 + ret |