ST20CX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST20CX

Instruction Set Reference Manual

STMicroelectronics 

insertqueue

insertqueue

insert at front of scheduler queue

Code: 60 F2

Description: Insert a list of processes at the front of the scheduling list of priority

indicated by Areg, where 0 indicates high priority and 1 indicates low priority. Breg

and Creg are the front and back, respectively, of the list to be inserted.

Definition:

if (Breg ≠ NotProcess.p)

{

ProcQueueFPtr′[Areg]←Breg

if (ProcQueueFPtr[Areg] = NotProcess.p)

ProcQueueBPtr′[Areg]←Creg

else

word′[Creg @ pw.Link] ← ProcQueueFPtr[Areg]

}

Areg′ ← undefined

Breg′ ← undefined

Creg′ ← undefined

Error signals: none

Comments:

Secondary instruction.

See also: swapqueue

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