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  • Machine

X86-decoder

Definitions of the x86 fetch, decode, and execute function and the top-level run function

Subtopics

Get-prefixes
Fetch and store legacy and REX prefixes, if any, of an instruction
Vex-0f3a-execute
Dispatch function for VEX-encoded instructions in the second three-byte opcode map
Vex-0f38-execute
Dispatch function for VEX-encoded instructions in the first three-byte opcode map
Vex-0f-execute
Dispatch function for VEX-encoded instructions in the two-byte opcode map
Two-byte-opcode-execute
Two-byte opcode dispatch function.
Second-three-byte-opcode-execute
Second three-byte opcode dispatch function.
One-byte-opcode-execute
Top-level dispatch function.
First-three-byte-opcode-execute
First three-byte opcode dispatch function.
Evex-0f3a-execute
Dispatch function for EVEX-encoded instructions in the second three-byte opcode map
Evex-0f38-execute
Dispatch function for EVEX-encoded instructions in the first three-byte opcode map
Evex-0f-execute
Dispatch function for EVEX-encoded instructions in the two-byte opcode map
X86-fetch-decode-execute
Top-level step function
Vex-decode-and-execute
Evex-decode-and-execute
X86-run
Top-level specification function for the x86 ISA model
Implemented-opcodes
Intel opcodes supported in x86isa.
Three-byte-opcode-decode-and-execute
Decoder and dispatch function for three-byte opcodes, where 0x0F 0x38 are the first two opcode bytes
X86-run-halt-count
A combination in functionality of x86-run-steps and x86-run-halt
Two-byte-opcode-decode-and-execute
Decoder and dispatch function for two-byte opcodes
X86-run-steps
An alternative to x86-run
Opcode-maps
ACL2 representation of x86 Opcode Maps (see Intel Manuals, Vol. 2, Appendix A)
X86-run-halt
Alternative version of x86-run that uses x86-fetch-decode-execute-halt instead of x86-fetch-decode-execute
X86-fetch-decode-execute-halt
Alternative version of x86-fetch-decode-execute that sets the MS field if rip is equal to halt-address
X86-run-steps1