ST20C2 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST20C2

Instruction Set Reference Manual

STMicroelectronics 

wcnt

wcnt

word count

Code: 23 FF

Description: Convert the byte offset in Areg to a word offset and a byte selector.

Definition:

Areg′ ← (Areg ∧ WordSelectMask) / BytesPerWord

Breg′ ← Areg ∧ ByteSelectMask

Creg′ ← Breg

Error signals: none

Comments:

Secondary instruction.

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