diff options
Diffstat (limited to 'IntelFsp2Pkg/FspSecCore')
| -rw-r--r-- | IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc b/IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc index a222f2e376..016f943b43 100644 --- a/IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc +++ b/IntelFsp2Pkg/FspSecCore/Ia32/SaveRestoreSseNasm.inc @@ -157,6 +157,9 @@ NextAddress: ; Use CpuId instruction (CPUID.01H:EDX.SSE[bit 25] = 1) to test
; whether the processor supports SSE instruction.
;
+ ; Save EBX to MM2
+ ;
+ movd mm2, ebx
mov eax, 1
cpuid
bt edx, 25
@@ -169,6 +172,10 @@ NextAddress: bt ecx, 19
jnc SseError
%endif
+ ;
+ ; Restore EBX from MM2
+ ;
+ movd ebx, mm2
;
; Set OSFXSR bit (bit #9) & OSXMMEXCPT bit (bit #10)
|