D17133CS datasheet(209/289 Pages) NEC

209 / 289 page

CHAPTER 18

INSTRUCTION SET

194

(0.6FH)

← (0.6FH) + 05H

Address obtained as result of ORing index register contents,

0.40H, and data memory address 0.2FH

MEM02F

MEM

0.2FH

MOV

BANK, #00H

; Data memory bank 0

MOV

IXH, #00H

; IX

← 00001000000B (0.40H)

MOV

IXM, #04H

MOV

IXL, #00H

;

SET1

IXE

; IXE flag

← 1

ADD

MEM02F, #05H

; IX

00001000000B (0.40H)

; Bank operand OR) 00000101111B (0.2FH)

; Specified address 00001101111B (0.6FH)

Example 3

Adds 5 to the address 0.2FH contents and stores the result in address 0.2FH. At this time, data memory

address 0.2FH can be specified by selecting data memory address 2FH, if IXE=1, IXH=0, IXM=0, and IXL=0,

i.e., IX=0.00H.

(2.2FH)

← (0.2FH) + 05H

Address obtained as result of ORing index register contents,

0.00H, and data memory address 0.2FH

MEM02F

MEM

0.2FH

MOV

BANK, #00H

; Data memory bank 0

MOV

IXH, #00H

; IX

← 00000000000B

MOV

IXM, #00H

MOV

IXL, #00H

;

SET1

IXE

; IXE flag

← 1

ADD

MEM02F, #05H

; IX

00000000000B (0.00H)

; Bank operand OR) 00000101111B (0.2FH)

; Specified address 00000101111B (0.2FH)

<4> Note

When the CMP flag=1, the addition result is not stored.

When the BCD flag=1, the BCD result is stored.

D17133CS Datasheet(PDF) 209 Page - NEC

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