diff options
Diffstat (limited to 'src/cpu/x86/sse_disable.inc')
| -rw-r--r-- | src/cpu/x86/sse_disable.inc | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/cpu/x86/sse_disable.inc b/src/cpu/x86/sse_disable.inc new file mode 100644 index 0000000000..a18ea18643 --- /dev/null +++ b/src/cpu/x86/sse_disable.inc @@ -0,0 +1,18 @@ + /* + * Put the processor back into a reset state + * with respect to the xmm registers. + */ + + xorps %xmm0, %xmm0 + xorps %xmm1, %xmm1 + xorps %xmm2, %xmm2 + xorps %xmm3, %xmm3 + xorps %xmm4, %xmm4 + xorps %xmm5, %xmm5 + xorps %xmm6, %xmm6 + xorps %xmm7, %xmm7 + + /* Disable sse instructions */ + movl %cr4, %eax + andl $~(3<<9), %eax + movl %eax, %cr4 |