gtk2/gdk-pixbuf/pixops/have_mmx.S
Owen Taylor 33e963e7af Directory full of pixel data scaling code that will eventually migrate
2000-01-05  Owen Taylor  <otaylor@redhat.com>

	* gdk-pixbuf/pixops/: Directory full of pixel data scaling
	code that will eventually migrate into libart.

	* configure.in acconfig.h: Add checks for MMX compiler support

	* gdk-pixbuf/gdk-pixbuf.h gdk-pixbuf/gdk-pixbuf-scale.c:
	Nice wrapper routines for the code in pixops that operate
	on pixbufs instead of raw data.

	* gdk-pixbuf/testpixbuf-scale: Test program for scaling
	routines.
2000-01-05 21:33:58 +00:00

42 lines
498 B
ArmAsm

.file "have_mmx.S"
.version "01.01"
gcc2_compiled.:
.text
.align 16
.globl pixops_have_mmx
.type pixops_have_mmx,@function
pixops_have_mmx:
push %ebx
# Check if bit 21 in flags word is writeable
pushfl
popl %eax
movl %eax,%ebx
xorl $0x00200000, %eax
pushl %eax
popfl
pushfl
popl %eax
cmpl %eax, %ebx
je .notfound
# OK, we have CPUID
movl $1, %eax
cpuid
test $0x00800000, %edx
jz .notfound
movl $1, %eax
jmp .out
.notfound:
movl $0, %eax
.out:
popl %ebx
ret