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Zilog Z80380 User Manual

Page 210

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Z380

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SER

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ANUAL

DC-8297-03

Z

ILOG

SWAP
SWAP UPPER REGISTER WORD WITH LOWER REGISTER WORD

SWAP src

src = R, RX

Operation:

src(31-16)

↔

src(15-0)

The contents of the most significant word of the source are exchanged with the contents of
the least significant word of the source.

Flags:

S:

Unaffected

Z:

Unaffected

H:

Unaffected

V:

Unaffected

N:

Unaffected

C:

Unaffected

Addressing

Execute

Mode

Syntax

Instruction Format

Time

Note

R:

SWAP R

11101101 00rr1110

2

RX:

SWAP RX

11y11101 00111110

2

Field Encodings:

rr: 00 for BC, 01 for DE, 11 for HL
y:

0 for IX, 1 for IY

See also other documents in the category Zilog Sensors: