It was there to support the SSE5 DREX encoding,
which as far as I know is dead forever.
Signed-off-by: Ben Rudiak-Gould <benrudiak@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
This patch is getting rid of the following bytecodes
'pushseg','popseg','pushseg2','popseg2' and simplifies
overall code.
[gorcunov@: a few style fixes]
Signed-off-by: Ben Rudiak-Gould <benrudiak@gmail.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
It doesn't seem worth >200 lines of C and Perl to save ~50 lines in insns.dat.
In order to make this work I had to rename sbyte16/sbyte32 so that
they can take an ordinary size suffix (their size suffix was formerly
treated specially).
This fixes one disassembly bug: 48C7C000000080 disassembles to mov
rax,0x80000000, which reassembles to B800000080, which loads a
different value.
Signed-off-by: Ben Rudiak-Gould <benrudiak@gmail.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
In this path the opflags bits are completely reworked
in a sake of simplier extension. Inparticular for Knights
Corener instructions we will need new registers and new
sizes.
What's done
- all bits are grouped in sequences, and start using OP_
macros, thus if one need to extend some field -- just
tune up @shift and @bits where needed
- the #define we use in code are OR'ed in symbols, this
should be a way more convenient to deal with instead of
pure hex numbers.
The tests are passed but more eyes needed to review this
rather big and intrusive patch. The reason why it's done
in one single path -- for revertability in one command.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
This patch introduces two macros
- OP_GENMASK, to generate masks in opflags
- OP_GENBIT, to generate bit at specified position
we will use them with extended 64 bits opflags.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Soon we will need to encode 512 bits values
thus there is no space left in our opflags_t
which is 32 bitfield.
Extend it to 64 bits width.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Handle immediate-size optimization for "mov r64,imm" -- reduce it to
"mov r32,imm32" or "mov r64,imm32" as appropriate.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Hopefully this should catch all of them... but please keep an eye out
for any other uses of int32_t for the operand flags.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
