M38002M4 Datasheet, PDF(164/173 Page) Mitsubishi Electric Semiconductor

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M38002M4 Datasheet, PDF (164/173 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

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APPENDIX

3.9 Machine instructions

Symbol

Function

PHA

M(S) â A

SâSâ1

PHP

M(S) â PS

SâSâ1

PLA

SâS+1

A â M(S)

PLP

SâS+1

PS â M(S)

ROL

â âC â

ROR

Câ â

RRF

ââ

Addressing mode

Details

IMP

IMM

BIT, A

BIT, ZP

OP n # OP n # OP n # OP n # OP n # OP n #

Saves the contents of the accumulator in 48 3 1

memory at the address indicated by the stack

pointer and decrements the contents of stack

pointer by 1.

Saves the contents of the processor status 08 3 1

the stack pointer and decrements the contents

of the stack pointer by 1.

Increments the contents of the stack pointer 68 4 1

by 1 and restores the accumulator from the

memory at the address indicated by the stack

pointer.

Increments the contents of stack pointer by 1 28 4 1

and restores the processor status register

from the memory at the address indicated by

the stack pointer.

Shifts the contents of the memory or accumu-

lator to the left by one bit. The high order bit is

shifted into the carry flag and the carry flag is

shifted into the low order bit.

2A 2 1

26 5 2

Shifts the contents of the memory or accumu-

lator to the right by one bit. The low order bit is

shifted into the carry flag and the carry flag is

shifted into the high order bit.

6A 2 1

66 5 2

Rotates the contents of memory to the right by

4 bits.

82 8 2

RTI

RTS

SBC

(Note 1)

(Note 5)

SâS+1

PS â M(S)

SâS+1

PCL â M(S)

SâS+1

PCH â M(S)

SâS+1

PCL â M(S)

SâS+1

PCH â M(S)

When T = 0

AâAâMâC

When T = 1

M(X) â M(X) â M â C

SEB

SEC

Ab or Mb â 1

Câ1

Returns from an interrupt routine to the main 40 6 1

routine.

Returns from a subroutine to the main routine. 60 6 1

Subtracts the contents of memory and

complement of carry flag from the contents of

accumulator. The results are stored into the

accumulator.

Subtracts contents of complement of carry flag

and contents of the memory indicated by the

addressing mode from the memory at the ad-

dress indicated by index register X. The

results are stored into the memory of the ad-

dress indicated by index register X.

E9 2 2

Sets the specified bit in the accumulator or

memory to â1â.

Sets the contents of the carry flag to â1â.

38 2 1

E5 3 2

0+B 2 1

0+F 5 2

SED

SEI

SET

Dâ1

Iâ1

Tâ1

Sets the contents of the decimal mode flag to F8 2 1

â1â.

Sets the contents of the interrupt disable flag 78 2 1

to â1â.

Sets the contents of the index X mode flag to 32 2 1

â1â.

3-62

3800 GROUP USERâS MANUAL

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