M68HC05 datasheet(82/128 Pages) FREESCALE

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Technical Data

MC68HC05J1A — Rev. 3.0

Instruction Set

9.4.1 Register/Memory Instructions

These instructions operate on CPU registers and memory locations.

Most of them use two operands. One operand is in either the

accumulator or the index register. The CPU finds the other operand in

memory.

Table 9-1. Register/Memory Instructions

Instruction

Mnemonic

Add memory byte and carry bit to accumulator

ADC

Add memory byte to accumulator

ADD

AND memory byte with accumulator

AND

Bit test accumulator

BIT

Compare accumulator

CMP

Compare index register with memory byte

CPX

Exclusive OR accumulator with memory byte

EOR

Load accumulator with memory byte

LDA

Load Index register with memory byte

LDX

Multiply

MUL

OR accumulator with memory byte

ORA

Subtract memory byte and carry bit from

accumulator

SBC

Store accumulator in memory

STA

Store index register in memory

STX

Subtract memory byte from accumulator

SUB

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