The UD0 and UD1 opcodes are now officially documented, with UD1
officially documented to take a modr/m. Still permit the "UD2B" and
argument-less aliases, but not as preferred.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
In commit 1eef781594b08a7f we allowed xmm0
to be implicit, then in dcaef4b09502aae7 it
occasionally got ripped off. Move it back.
https://bugzilla.nasm.us/show_bug.cgi?id=3392379
Reported-by: ig <glucksmann@avast.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
The constant arrays in get_disp8N() should be static; otherwise the
compiler has to manifest them on the stack for every execution which
makes no sense at all.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Improve consistency by allowing contracted forms for EVEX-encoded
instructions when it's allowed for similar VEX-encoded instructions.
Previously the behavior would change depending on the vector size or
the register number which could be somewhat confusing:
vaddps xmm0, xmm1 ; ok
vaddps ymm0, ymm1 ; ok
vaddps zmm0, zmm1 ; error
vaddps xmm0, xmm16 ; error
Also allow contracted forms for a few additional older AVX instructions
where it makes sense.
Signed-off-by: Henrik Gramner <henrik@gramner.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Make the source code easier to understand and keep track of by
organizing it into subdirectories depending on the function.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
