8088/8086 Instruction I

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<strong>Instruction</strong> Types Data transfer instructions String instructions Arithmetic instructions Bit manipulation instructions Loop and jump instructions Subroutine and interrupt instructions Processor control instructionsAn excellent website about 80x86 instruction set: http://www.penguin.cz/~literakl/intel/intel.htmlAnother good reference is in the tutorial of <strong>8086</strong> emulator8-2
Addressing ModesAddressing Modes Immediate addressing Register addressing Direct addressing Register Indirect addressing Based addressing Indexed addressing Based indexed addressing Based indexed with displacement addressingExamplesMOV AL, 12HMOV AL, BLMOV [500H], ALMOV DL, [SI]MOV AX, [BX+4]MOV [DI-8], BLMOV [BP+SI], AHMOV CL, [BX+DI+2]Exceptions String addressing Port addressing (e.g. IN AL, 79H)8-3
Page 1: ECE 424 Design of Microprocessor-Ba
Page 5 and 6: Flags Commonly Tested During the Ex
Page 7 and 8: What is a Stack ?Instructions for S
Page 9 and 10: Data Transfer Instructions SAHF—
Page 11 and 12: String Instructions String is a col
Page 13 and 14: REPZ String InstructionRepeat Prefi
Page 15 and 16: String Instructions MOVSB (MOVSW)
Page 17: String Instructions SCASB (SCASW)

8088/8086 Instruction I

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