ref: 3bb75beeae0c2155114d96d2ef1fc52c98f2ad3e dir: /as/target/x86/i386.dat/
# Tab 16, tabs 16, :set ts=16 # op args size bytes format EQU imm32 0 none equ NOP none 1 0x90 direct RET none 1 0xc3 direct