pTAL Reference Manual (G06.24+, H06.09+, J06.03+)

Example 267 $INTERROGATEHIO Routine

INT select;

INT rank_channel;

INT ric_interrupt_status;

INT rist_interrupt_cause;

INT channel_status;

$INTERROGATEHIO(select, rank_channel, ric_interrupt_status,

rist_interrupt_status, channel_status);

$INTERROGATEIO

NOTE: The EpTAL compiler does not support this procedure.

$INTERROGATEIO stores cause and status information from an I/O interrupt, which the operating

system uses to reset the interrupt.

YespTAL privileged procedure

YesCan be executed only by privileged procedures

YesSets condition code

NoSets $CARRY

NoSets $OVERFLOW

select

output

sINT:variable

is an integer variable that is always set to 0.

rank-channel

output

sINT:variable

is an integer variable that is always set to 0.

ric-int-cause

output

sINT:variable

is the read interrupt cause received from the controller holding the completed I/O.

rist-int-cause

output

sINT:variable

is the read interrupt status received from the controller holding the completed I/O.

channel-status

output

320 Built-In Routines