ST20C2 查看數據表（PDF） - STMicroelectronics

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ST20C2

Instruction Set Reference Manual

STMicroelectronics 

wsubdb

wsubdb

form double word subscript

Code: 28 F1

Description: Generate the address of the element which is indexed by Breg, in the

double word array pointed to by Areg.

Definition:

Areg′ ← Areg @ (2 × Breg)

Breg′ ← Creg

Creg′ ← undefined

Error signals: none

Comments:

Secondary instruction.

See also: bsub ssub wcnt wsub

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