search for: vex_wprefix

Displaying 2 results from an estimated 2 matches for "vex_wprefix".

2018 Mar 28
0
x86 instruction format which takes a single 64-bit immediate
...on requires the REX.W it to be set. hasLockPrefix - Indicates the instruction should be encoded with a 0xF0 lock prefix. hasREPPrefix - Indicates the instruction should be encoded with a 0xF3 rep prefix. OpcEnc - Which encoding scheme this instruction uses. Normal, VEX, EVEX, or XOP. VEX_WPrefix - Controls the value of the VEX.W bit in the encoder also tells the disassembler which instructions ignore VEX.W. hasVEX_4V - Does this instruction use VEX.vvvv hasVEX_L - Should this instruction be encoded with VEX.L=1 ignoresVEX_L - Tells the disassembler that VEX.L should be i...
2018 Mar 28
4
x86 instruction format which takes a single 64-bit immediate
I am attempting to create an instruction which takes a single 64-bit immediate. This doesn't seem like a thing that would exist already (because who needs an instruction which just takes an immediate?) How might I implement this easily? Perhaps I could use a format which encodes a register, which is then unused? Thanks for the help. Gus -------------- next part -------------- An HTML