CDP1802A datasheet(21/27 Pages) INTERSIL

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TABLE 1. INSTRUCTION SUMMARY (SEE NOTES)

INSTRUCTION

MNEMONIC

CODE

OPERATION

MEMORY REFERENCE

LOAD VIA N

LDN

M(R(N))

→ D; FOR N not 0

LOAD ADVANCE

LDA

M(R(N))

→ D; R(N) + 1 → R(N)

LOAD VIA X

LDX

M(R(X))

→ D

LOAD VIA X AND ADVANCE

LDXA

M(R(X))

→ D; R(X) + 1 → R(X)

LOAD IMMEDIATE

LDl

M(R(P))

→ D; R(P) + 1 → R(P)

STORE VIA N

STR

→ M(R(N))

STORE VIA X AND DECREMENT

STXD

→ M(R(X)); R(X) - 1 → R(X)

INCREMENT REG N

INC

R(N) + 1

→ R(N)

DECREMENT REG N

DEC

R(N) - 1

→ R(N)

INCREMENT REG X

IRX

R(X) + 1

→ R(X)

GET LOW REG N

GLO

R(N).0

→ D

PUT LOW REG N

PLO

→ R(N).0

GET HIGH REG N

GHl

R(N).1

→ D

PUT HIGH REG N

PHI

→ R(N).1

LOGIC OPERATIONS (Note 1)

M(R(X)) OR D

→ D

OR IMMEDIATE

ORl

M(R(P)) OR D

→ D; R(P) + 1 → R(P)

EXCLUSIVE OR

XOR

M(R(X)) XOR D

→ D

EXCLUSIVE OR IMMEDIATE

XRI

M(R(P)) XOR D

→ D; R(P) + 1 → R(P)

AND

M(R(X)) AND D

→ D

AND IMMEDIATE

ANl

M(R(P)) AND D

→ D; R(P) + 1 → R(P)

SHIFT RIGHT

SHR

SHIFT D RIGHT, LSB(D)

→ DF, 0 → MSB(D)

SHIFT RIGHT WITH CARRY

SHRC

(Note 2)

SHIFT D RIGHT, LSB(D)

→ DF, DF → MSB(D)

RING SHIFT RIGHT

RSHR

(Note 2)

SHIFT D RIGHT, LSB(D)

→ DF, DF → MSB(D)

SHIFT LEFT

SHL

SHIFT D LEFT, MSB(D)

→ DF, 0 → LSB(D)

SHIFT LEFT WITH CARRY

SHLC

(Note 2)

SHIFT D LEFT, MSB(D)

→ DF, DF → LSB(D)

RING SHIFT LEFT

RSHL

(Note 2)

SHIFT D LEFT, MSB(D)

→ DF, DF → LSB(D)

ARITHMETIC OPERATIONS (Note 1)

ADD

M(R(X)) + D

→ DF, D

ADD IMMEDIATE

ADl

M(R(P)) + D

→ DF, D; R(P) + 1 → R(P)

ADD WITH CARRY

ADC

M(R(X)) + D + DF

→ DF, D

ADD WITH CARRY, IMMEDIATE

ADCl

M(R(P)) + D + DF

→ DF, D; R(P) + 1 → R(P)

SUBTRACT D

M(R(X)) - D

→ DF, D

SUBTRACT D IMMEDIATE

SDl

M(R(P)) - D

→ DF, D; R(P) + 1 → R(P)

SUBTRACT D WITH BORROW

SDB

M(R(X)) - D - (NOT DF)

→ DF, D

CDP1802A, CDP1802AC, CDP1802BC

CDP1802A Datasheet(PDF) 21 Page - Intersil Corporation

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