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Motorola HC12 User Manual

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Assembler Syntax
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MCUez HC12 Assembler
User’s Manual
MOTOROLA
Assembler Syntax
121
7.4.2.1  Instructions
Executable instructions for the M68HC12 processor are defined in the CPU
Reference Manual, Motorola document order number CPU12RM/AD.
Table 7-1. Executable Instructions (Sheet 1 of 8)
Instruction
Description
ABA
Add accumulator A and B
ABX
Add accumulator B and register X
ABY
Add accumulator B and register Y
ADCA
Add with carry to accumulator A
ADCB
Add with carry to accumulator B
ADDA
Add without carry to accumulator A
ADDB
Add without carry to accumulator B
ADDD
Add without carry to accumulator D
ANDA
Logical AND with accumulator A
ANDB
Logical AND with accumulator B
ANDCC
Logical AND with CCR
ASL
Arithmetic shift left in memory
ASLA
Arithmetic shift left accumulator A
ASLB
Arithmetic shift left accumulator B
ASLD
Arithmetic shift left accumulator D
ASR
Arithmetic shift left in memory
ASRA
Arithmetic shift right accumulator A
ASRB
Arithmetic shift right accumulator B
BCC
Branch if carry clear
BCLR
Clear bits in memory
BCS
Branch if carry set (same as BLO)
BEQ
Branch if equal
BGE
Branch if greater than or equal