insns.md

List of Supported Instructions

• ADD
  • flags
    • all according
  • operands
    • r/m, imm
    • r/m, r
    • r, r/m
• AND
  • flags
    • AF undef
    • OF/CF clear
    • SF/ZF/PF according
  • operands
    • r/m, imm
    • r/m, r
    • r, r/m
• CALL
  • flags
    • none
  • operands
    • rel
    • r/m
• CBW/CWDE/CDQE
  • flags
    • none
  • sign extends AL/AX/EAX to next larger size
• CWD/CDW/CQO
  • flags
    • none
  • sign extends AX/EAX/RAX into DX/EDX/RDX
• CMP
  • flags
    • all according
  • operands
    • r/m, imm
    • r/m, r
    • r, r/m
• DEC
  • flags
    • CF not affected
    • OF/SF/ZF/AF/PF according
  • operands
    • r/m
• DIV
  • flags
    • all undef
  • unsigned divide
  • divide AX/DX:AX/EDX:EAX/RDX:RAX by source
  • quot = AL/AX/EAX/RAX, mod = AH/DX/EDX/RDX
  • operands
    • r/m
• IDIV
  • flags
    • all undef
  • signed divide
  • divide AX/DX:AX/EDX:EAX/RDX:RAX by source
  • quot = AL/AX/EAX/RAX, rem = AH/DX/EDX/RDX
  • operands
    • r/m
• IMUL
  • flags
    • ZF/AF/PF undef
    • SF MSB of operand-size-truncated result in destination
    • CF/OF fuckall
  • signed multiply
  • operands
    • r/m (AX/DX:AX/EDX:EAX/RDX:RAX <- AL/AX/EAX/RAX * s)
    • r, r/m (d <- d * s)
    • r, r/m, imm (d <- s * c)
• INC
  • flags
    • CF not affected
    • OF/SF/ZF/AF/PF according
  • operands
    • r/m
• JMP
  • flags
    • none
  • operands
    • rel
    • r/m
• Jcc
  • flags
    • none
  • operands
    • rel
• LEA
  • flags
    • none
  • operands
    • r, m
• MOV
  • flags
    • none
  • operands
    • r/m, r
    • r, r/m
    • r/m, imm
    • TODO: look up moffs
• MUL
  • flags
    • OF/CF = (upper half == 0) ? 0 : 1
    • SF/ZF/AF/PF undef
  • unsigned multiply
  • operands
    • r/m (AX/DX:AX/EDX:EAX/RDX:RAX <- AL/AX/EAX/RAX * s)
• NEG
  • flags
    • CF = (s == 0) ? 0 : 1
    • OF/SF/ZF/AF/PF according
  • twos complement
  • operands
    • r/m
• NOP
  • does nothing
  • operands
    • _
    • r/m
• NOT
  • flags
    • none
  • operands
    • r/m
• OR
  • flags
    • OF/CF cleared
    • SF/ZF/PF according
    • AF undef
  • operands
    • r/m, imm
    • r/m, r
    • r, r/m
• POP
  • flags
    • none
  • operands
    • r/m
• PUSH
  • flags
    • none
  • operands
    • r/m
    • imm
• SAL/SAR/SHL/SHR
  • flags
    • CF/OF fuck all
    • SF/ZF/PF according (unless count is 0)
    • AF undef
  • SAL/SAR: artithmetic (preserves sign bit)
  • SHL/SHR: logical (normal shifts)
  • operands
    • r/m, imm
    • r/m, CL
• SUB
  • flags
    • all according
  • operands
    • r/m, imm
    • r/m, r
    • r, r/m
• TEST
  • flags
    • OF/CF cleared
    • SF/ZF/PF according
    • AF undef
  • operands
    • r/m, imm
    • r/m, r

List of Considered Instructions

• CMOVcc
• ENTER
• INT
• LEAVE
• LOOP
• LOOPcc
• SETcc
• STOxx
• SYSxxxx