Maxim-integrated MAXQ7667 Manual do Utilizador descarregar pdf (Página 345)

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MAXQ7667 User’s Guide

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

Example(s): ; Acc = 2345h

XCHN ; 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

Example(s): ; Acc = 2345h

XCHN ; Acc = 3254h

1000 1010 0111 1010

1000 1010 1000 1010

1 2 ... 340 341 342 343 344 345 346 347

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