COP87LXXCJ Datasheet, PDF(20/28 Page) National Semiconductor (TI) – 8-Bit CMOS OTP Microcontrollers with 4k or 32k Memory and Comparator

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COP87LXXCJ Datasheet, PDF (20/28 Pages) National Semiconductor (TI) – 8-Bit CMOS OTP Microcontrollers with 4k or 32k Memory and Comparator

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Instruction Set (Continued)

INSTRUCTION SET

ADD

ADC

add

add with carry

SUBC

subtract with carry

AND

XOR

IFEQ

IFGT

IFBNE

DRSZ

SBIT

RBIT

IFBIT

LD A

LD mem

LD Reg

LD A

LD M

CLRA

INCA

DECA

LAID

DCORA

RRCA

SWAPA

IFC

IFNC

JMPL

JMP

JSRL

JSR

JID

RET

RETSK

RETI

INTR

NOP

Logical AND

Logical OR

Logical Exclusive-OR

IF equal

IF greater than

IF B not equal

Decrement Reg. ,skip if zero

Set bit

Reset bit

If bit

Exchange A with memory

Load A with memory

Load Direct memory Immed.

Load Register memory Immed.

Exchange A with memory [B]

Exchange A with memory [X]

Load A with memory [B]

Load A with memory [X]

Load Memory Immediate

Clear A

Increment A

Decrement A

Load A indirect from ROM

DECIMAL CORRECT A

ROTATE A RIGHT THRU C

Swap nibbles of A

Set C

Reset C

If C

If not C

Jump absolute long

Jump absolute

Jump relative short

Jump subroutine long

Jump subroutine

Jump indirect

Return from subroutine

Return and Skip

Return from Interrupt

Generate an interrupt

No operation

A â A + MemI

A â A + MemI + C, C â Carry

HC â Half Carry

A â A + MemI +C, C â Carry

HC â Half Carry

A â A and MemI

A â A or MemI

A â A xor MemI

Compare A and MemI, Do next if A = MemI

Compare A and MemI, Do next if A > MemI

Do next if lower 4 bits of B â Imm

Reg â Reg â 1, skip if Reg goes to 0

1 to bit, Mem (bit= 0 to 7 immediate)

0 to bit, Mem

If bit, Mem is true, do next instr.

A â Mem

A â MemI

Mem â Imm

Reg â Imm

A â [B] (B â BÂ±1)

A â [X] (X â XÂ±1)

A â [B] (B â BÂ±1)

A â [X] (X â XÂ±1)

[B] â Imm (B â BÂ±1)

Aâ0

AâA+1

AâAâ1

A â ROM(PU,A)

A â BCD correction (follows ADC, SUBC)

C â A7 â â¦ â A0 â C

A7 â¦ A4 â A3 â¦ A0

C â 1, HC â 1

C â 0, HC â 0

If C is true, do next instruction

If C is not true, do next instruction

PC â ii (ii = 15 bits, 0 to 32k)

PC11..0 â i (i = 12 bits)

PC â PC + r (r is â31 to +32, not 1)

[SP] â PL,[SP-1] â PU,SP-2,PC â ii

[SP] â PL,[SP-1] â PU,SP-2,PC11.. 0 â i

PL â ROM(PU,A)

SP+2,PL â [SP],PU â [SP-1]

SP+2,PL â [SP],PU â [SP-1],Skip next instruction

SP+2,PL â [SP],PU â [SP-1],GIE â 1

[SP] â PL,[SPâ1] â PU,SP-2,PC â 0FF

PC â PC + 1

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