Classes - IBM 5170 Technical Reference

;TYPE code in AL
INThex lS
;issue call
JCTIMEOUT
;optional: for timeout or
;if carry is set, timeout
; occurred
NORMAL TIMEOUT LOGIC ;normal timeout
UNTIL INTERRUPT COMPLETE FLAG IS SET
POST
(Interrupt)
Whenever the BIOS has set an interrupt flag for a corresponding
busy loop, an interrupt 15 occurs with a function code hex 91 in
AH. This signals a POST condition. At this point, the dispatcher
should set the task status to "ready to run" and return to the
interrupt routine. The following BIOS has been added to code to
implement this function.
INTERRUPT PROCESSING
SET INTERRUPT COMPLETE FLAG FOR BUSY LOOP
MOV AX,hex 91XX
; post code AH and
; type code AL
INT hex lS
; issue call
Classes
The following types of wait loops are supported:
Compatibility 9-13