Maxim-integrated DS4830 Optical Microcontroller Manual do Utilizador descarregar pdf (Página 218)

DS4830 User’s Guide

218

XCH Exchange Accumulator Bytes

Description: Exchanges the upper and lower bytes of the active accumulator.

Status Flags: S

Operation: Acc.[15:8]  Acc.[7:0]

Acc.[7:0]  Acc.[15:8]

Encoding: 15 0

1000

1010

1000

1010

Example(s): ; Acc = 2345h

XCH ; Acc = 4523h

XCHN Exchange Accumulator Nibbles

Description: Exchanges the upper and lower nibbles in the active accumulator byte(s).

Status Flags: S

Operation: Acc.[7:4]  Acc.[3:0]

Acc.[3:0]  Acc.[7:4]

Acc.[15:12]  Acc.[11:8]

Acc.[11:8]  Acc.[15:12]

Encoding: 15 0

1000

1010

0111

1010

Example(s): ; Acc = 2345h

XCHN ; Acc = 3254h

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Maxim-integrated DS4830 Optical Microcontroller Manual do Utilizador Página 218