X86 Registers Cheat Sheet. The other one uses wide registers but doesn't use long operands. The 64 bit registers are shown in red.
opcode table x86
Gcc x86 assembly quick reference (cheat sheet) remember the length suffixes, covered here ! Scratch registers any function is allowed to overwrite, and use for anything you want without asking anybody. The 64 bit registers are shown in red. Web for gnu as on i386 i recommend this one: Web x86 cheat sheet general purpose registers %eax (%ax,%ah,%al) %ecx (%cx,%ch,%cl) %edx (%dx,%dh,%dl) %ebx (%bx,%bh,%bl) %esi %edi %ebp [base pointer] %esp [stack pointer] program counter %eip [instruction. The other one uses wide registers but doesn't use long operands. Web here's the full list of ordinary integer x86 registers.
Web for gnu as on i386 i recommend this one: Web x86 cheat sheet general purpose registers %eax (%ax,%ah,%al) %ecx (%cx,%ch,%cl) %edx (%dx,%dh,%dl) %ebx (%bx,%bh,%bl) %esi %edi %ebp [base pointer] %esp [stack pointer] program counter %eip [instruction. Scratch registers any function is allowed to overwrite, and use for anything you want without asking anybody. The 64 bit registers are shown in red. Gcc x86 assembly quick reference (cheat sheet) remember the length suffixes, covered here ! Web for gnu as on i386 i recommend this one: Web here's the full list of ordinary integer x86 registers. The other one uses wide registers but doesn't use long operands.
