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#
# Imlib/Mosfet scaling
#
AM_PROG_AS
# MMX test duped from tdelibs/tdefx - it should be probably moved to admin/
dnl -----------------------------------------------------
dnl IA32 checks
dnl -----------------------------------------------------
gv_asm_defs=
case $host_cpu in
i*86 )
AC_MSG_CHECKING(for assembler support for IA32 extensions)
dnl MMX check
AC_TRY_COMPILE(, [ __asm__("pxor %mm0, %mm0") ],
[
echo $ECHO_N "MMX yes$ECHO_C"
AC_DEFINE_UNQUOTED(HAVE_X86_MMX, 1, [Define to 1 if the assembler supports MMX instructions.])
gv_asm_defs="$gv_asm_defs -DHAVE_X86_MMX"
], [ echo $ECHO_N "MMX no$ECHO_C" ])
dnl SSE check
AC_TRY_COMPILE(,[ __asm__("xorps %xmm0, %xmm0") ],
[
echo $ECHO_N ", SSE yes$ECHO_C"
AC_DEFINE_UNQUOTED(HAVE_X86_SSE, 1, [Define to 1 if the assembler supports SSE instructions.])
gv_asm_defs="$gv_asm_defs -DHAVE_X86_SSE"
], [ echo $ECHO_N ", SSE no$ECHO_C" ])
dnl SSE2 check
AC_TRY_COMPILE(, [ __asm__("xorpd %xmm0, %xmm0") ],
[
echo $ECHO_N ", SSE2 yes$ECHO_C"
AC_DEFINE_UNQUOTED(HAVE_X86_SSE2, 1, [Define to 1 if the assembler supports SSE2 instructions.])
gv_asm_defs="$gv_asm_defs -DHAVE_X86_SSE2"
], [ echo $ECHO_N ", SSE2 no$ECHO_C" ])
dnl 3DNOW check
AC_TRY_COMPILE(, [ __asm__("femms") ],
[
echo $ECHO_N ", 3DNOW yes$ECHO_C"
AC_DEFINE_UNQUOTED(HAVE_X86_3DNOW, 1, [Define to 1 if the assembler supports 3DNOW instructions.])
gv_asm_defs="$gv_asm_defs -DHAVE_X86_3DNOW"
], [ echo $ECHO_N ", 3DNOW no$ECHO_C" ])
echo
;;
powerpc )
AC_MSG_CHECKING(for assembler support for AltiVec instructions)
dnl AltiVec check
AC_TRY_COMPILE(, [ __asm__("mtspr 256, %0\n\t" "vand %%v0, %%v0, %%v0" : : "r"(-1) ) ],
[
echo $ECHO_N " yes$ECHO_C"
AC_DEFINE_UNQUOTED(HAVE_PPC_ALTIVEC, 1, [Define to 1 if the assembler supports AltiVec instructions.])
gv_asm_defs="$gv_asm_defs -DHAVE_PPC_ALTIVEC"
], [ echo $ECHO_N ", AltiVec no$ECHO_C" ])
echo
;;
esac
GV_ASM_DEFS="$gv_asm_defs"
AC_SUBST(GV_ASM_DEFS)
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