CDP1802AC datasheet(19/27 Pages) RENESAS

19 / 27 page

CDP1802AC/3

FN1441 Rev 3.00

Page 19 of 27

October 17, 2008

TABLE 4. INSTRUCTION SUMMARY

(See Notes 11 through 16)

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 11)

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 12)

SHIFT D RIGHT, LSB(D)

 DF, DF  MSB(D)

RING SHIFT RIGHT

RSHR

(Note 12)

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 12)

SHIFT D LEFT, MSB(D)

 DF, DF  LSB(D)

RING SHIFT LEFT

RSHL

(Note 12)

SHIFT D LEFT, MSB(D)

 DF, DF  LSB(D)

ARITHMETIC OPERATIONS (Note 11)

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

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