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added detectFeature function, used to detect sse in x86.cpp

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This commit is contained in:
Josh warner 2009-08-06 08:49:26 -06:00
parent 5cc605b56d
commit c042354ea0
1 changed files with 103 additions and 1 deletions
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104
src/x86.S
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@ -18,6 +18,42 @@
#ifdef __x86_64__
#ifdef __WINDOWS__
# if defined __APPLE__ || defined __MINGW32__ || defined __CYGWIN32__
.globl _detectFeature
_detectFeature:
# else
.globl detectFeature
detectFeature:
# endif
pushq %rbp
movq %rsp, %rbp
pushq %rdx
pushq %rcx
pushq %rbx
pushq %rsi
pushq %rdi
movl %ecx, %edi
movl %edx, %esi
movl $1, %eax
cpuid
andl %esi, %edx
andl %edi, %ecx
orl %edx, %ecx
test %ecx, %ecx
je LOCAL(NOSSE)
movl $1, %eax
jmp LOCAL(SSEEND)
LOCAL(NOSSE):
movl $0, %eax
LOCAL(SSEEND):
popq %rdi
popq %rsi
popq %rbx
popq %rcx
popq %rdx
movq %rbp,%rsp
popq %rbp
ret
# if defined __APPLE__ || defined __MINGW32__ || defined __CYGWIN32__
.globl _vmNativeCall
@ -141,6 +177,36 @@ _vmJump:
jmp *%rcx
#elif defined __LINUX__
# if defined __APPLE__ || defined __MINGW32__ || defined __CYGWIN32__
.globl _detectFeature
_detectFeature:
# else
.globl detectFeature
detectFeature:
# endif
pushq %rbp
movq %rsp, %rbp
pushq %rdx
pushq %rcx
pushq %rbx
movl $1, %eax
cpuid
andl %esi, %edx
andl %edi, %ecx
orl %edx, %ecx
test %ecx, %ecx
je LOCAL(NOSSE)
movl $1, %eax
jmp LOCAL(SSEEND)
LOCAL(NOSSE):
movl $0, %eax
LOCAL(SSEEND):
popq %rbx
popq %rcx
popq %rdx
movq %rbp,%rsp
popq %rbp
ret
# if defined __APPLE__ || defined __MINGW32__ || defined __CYGWIN32__
.globl _vmNativeCall
@ -252,8 +318,44 @@ vmJump:
jmp *%rdi
#endif //def __WINDOWS__
#elif defined __i386__
# if defined __APPLE__ || defined __MINGW32__ || defined __CYGWIN32__
.globl _detectFeature
_detectFeature:
# else
.globl detectFeature
detectFeature:
# endif
pushl %ebp
movl %esp, %ebp
pushl %edx
pushl %ecx
pushl %ebx
pushl %esi
pushl %edi
movl 12(%ebp), %esi
movl 8(%ebp), %edi
movl $1, %eax
cpuid
andl %esi, %edx
andl %edi, %ecx
orl %edx, %ecx
test %ecx, %ecx
je LOCAL(NOSSE)
movl $1, %eax
jmp LOCAL(SSEEND)
LOCAL(NOSSE):
movl $0, %eax
LOCAL(SSEEND):
popl %edi
popl %esi
popl %ebx
popl %ecx
popl %edx
movl %ebp,%esp
popl %ebp
ret
# if defined __APPLE__ || defined __MINGW32__ || defined __CYGWIN32__
.globl _vmNativeCall
_vmNativeCall: