// 64 bit registers RAX RBX RCX RDX RSI RDI R8 R9 R10 R11 A0, A1, A2, A3, A4, A5, A6, A7, A8, A9 // Lower 32 bit registers EAX RBX ECX EDX ESI EDI R8D R9D R10D R11D B0, B1, B2, B3, B4, B5, B6, B7, B8, B9 // Lower 8 bit registers AL BL CL DL SIL DIL R8B R9B R10B R11B C0, C1, C2, C3, C4, C5, C6, C7, C8, C9 // Lower 16 bit registers AX BX CX DX SI DI R8W R9W R10W R11W D0, D1, D2, D3, D4, D5, D6, D7, D8, D9 // Other SP, BP // Instructions NOP PUSH - Push register to stack POP - Pop register from stack MOV_CST_MEM_OFS_(N) REG, CONST1, CONST2 - Move constant CONST2 (N bytes long) to *(REG + CONST1) MOV_REG REG2, REG1 - Move REG1 into REG2 SUB_CST REG, CONST - Subtract CONST from REG and store in REG CMP REG0, REG1 - Compare REG0 and REG1 JE LABEL - Jump if zero LEA REG, LABEL - Loads address of label into register