pTAL Conversion Guide

pTAL Built-In Routines

pTAL Conversion Guide—527302-002

18-21

$EXECUTEIO

•

If var1 or var2 names an entire array, $EXCHANGE exchanges element 0 of

the array.

$EXECUTEIO

$EXECUTEIO initiates a command to the channel.

channel input

uINT:value

is the channel number to which the I/O is initialized.

Figure 18-4. TAL Code Equivalent to $EXCHANGE Routine

STACK var1, var2;

STORE var1, var2;

Example 18-12. Call to $EXCHANGE Routine

INT var1;

INT var2;

INT(32) var3;

INT(32) var4;

$EXCHANGE(var1, var2);

$EXCHANGE(var3, var4);

Note. The EpTAL compiler does not support this procedure.

pTAL privileged procedure Yes

Can be executed only by privileged procedures Yes

Sets condition code Yes

Sets $CARRY No

Sets $OVERFLOW No

) ;

$EXECUTEIO

VST616.vsd

channel( lprmcommand

lacsubcommand rdstdevstatus

channel-status