ST20CX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST20CX

Instruction Set Reference Manual

STMicroelectronics 

altwt

altwt

alt wait

Code: 24 F4

Description: Wait until one of the enabled guards of an alternative has become

ready, and initialize workspace for use during the disabling sequence.

Definition:

if (word[Wptr @ pw.State] ≠ Ready.p)

{

word′[Wptr @ pw.State] ← Waiting.p

Deschedule process and wait for one of the guards to become ready

}

word′[Wptr @ pw.Temp] ← NoneSelected.o

Areg′ ← undefined

Breg′ ← undefined

Creg′ ← undefined

Error signals: none

Comments:

Secondary instruction.

Instruction is a descheduling point.

Uses the pw.Temp slot in the process workspace.

See also: alt altend disc diss dist enbc enbs enbt talt taltwt

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