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add 3DNOW stuff from Miroslav

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This commit is contained in:
Josh Coalson
2001-07-16 21:13:19 +00:00
parent ae4ed27263
commit f5925df599
6 changed files with 178 additions and 9 deletions
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45
src/libFLAC/ia32/cpu_asm.nasm
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@@ -21,20 +21,18 @@
data_section
cglobal FLAC__cpu_info_asm_ia32
cglobal FLAC__cpu_info_extended_amd_asm_ia32
code_section
; **********************************************************************
;
ALIGN 16
cident FLAC__cpu_info_asm_ia32
push ebx
have_cpuid:
pushfd
pop eax
mov edx, eax
xor eax, 00200000h
xor eax, 0x00200000
push eax
popfd
pushfd
@@ -42,12 +40,43 @@ cident FLAC__cpu_info_asm_ia32
cmp eax, edx
jz .no_cpuid
mov eax, 1
jmp .end
.no_cpuid:
xor eax, eax
.end:
ret
cident FLAC__cpu_info_asm_ia32
push ebx
call have_cpuid
test eax, eax
jz .no_cpuid
mov eax, 1
cpuid
mov eax, edx
jmp short .end
jmp .end
.no_cpuid:
xor eax, eax ; return 0
.end:
xor eax, eax
.end
pop ebx
ret
cident FLAC__cpu_info_extended_amd_asm_ia32
push ebx
call have_cpuid
test eax, eax
jz .no_cpuid
mov eax, 0x80000000
cpuid
cmp eax, 0x80000001
jb .no_cpuid
mov eax, 0x80000001
cpuid
mov eax, edx
jmp .end
.no_cpuid
xor eax, eax
.end
pop ebx
ret