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HEAD
- Add new cvs code to cvs
[coreboot.git]
/
src
/
cpu
/
k8
/
disable_mmx_sse.inc
1
/* Clear out an mmx state */
2
emms
3
4
/*
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* Put the processor back into a reset state
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* with respect to the xmm registers.
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*/
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9
pxor %xmm0, %xmm0
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pxor %xmm1, %xmm1
11
pxor %xmm2, %xmm2
12
pxor %xmm3, %xmm3
13
pxor %xmm4, %xmm4
14
pxor %xmm5, %xmm5
15
pxor %xmm6, %xmm6
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pxor %xmm7, %xmm7
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/* Disable floating point emulation */
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movl %cr0, %eax
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andl $~(1<<2), %eax
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movl %eax, %cr0
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/* Disable sse instructions */
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movl %cr4, %eax
25
andl $~(3<<9), %eax
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movl %eax, %cr4
27