64-Bit AMD Opteron Considerations - x86 Assembly Language Reference Manual

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3.32 64-Bit AMD Opteron Considerations

To assemble code for the AMD Opteron CPU, invoke the assembler with the –m64 command line option. See the as(1) man page for additional information.

The following Oracle Solaris mnemonics are only valid when the –m64 command line option is specified:

adcq
addq
andq
bsfq
bsrq
bswapq
btcq
btq
btrq
btsq
cltq
cmovaeq
cmovaq
cmovbeq
cmovbq
cmovcq
cmoveq
cmovgeq
cmovgq
cmovleq
cmovlq
cmovnaeq
cmovnaq
cmovnbeq
cmovnbq
cmovncq
cmovneq
cmovngeq
cmovngq
cmovnleq
cmovnlq
cmovnoq
cmovnpq
cmovnsq
cmovnzq
cmovoq
cmovpeq
cmovpoq
cmovpq
cmovsq
cmovzq
cmpq
cmpsq
cmpxchgq
cqtd
cqto
decq
divq
idivq
imulq
incq
larq
leaq
lodsq
lslq
movabs
movdq
movntiq
movq
movsq
movswq
movzwq
mulq
negq
notq
orq
popfq
popq
pushfq
pushq
rclq
rcrq
rolq
rorq
salq
sarq
sbbq
scasq
shldq
shlq
shrdq
shrq
sldtq
smswq
stosq
strq
subq
testq
xaddq
xchgq
xchgqA
xorq

The following Oracle Solaris mnemonics are not valid when the –m64 command line option is specified:

aaa
aad
aam
aas
boundw
daa
das
into
jecxz
ldsw
lesw
popa
popaw
pusha
pushaw