pTAL Conversion Guide

pTAL Built-In Routines

pTAL Conversion Guide—527302-002

18-37

$MOVENONDUP

$MOVENONDUP moves 16-bit words from one location in extended memory to

another until $MOVENONDUP encounters two consecutive words with the same

value.

destaddr input,output

EXTADDR:variable

is the address to which words are moved. When $MOVENONDUP completes,

destaddr is the address after which $MOVENONDUP stored the last byte.

srcaddr input,output

EXTADDR:variable

is the address from which words are moved. When $MOVENONDUP completes,

srcaddr is the address after which $MOVENONDUP read the last byte it moved.

Example 18-25. Call to $MOVEANDCXSUMBYTES Routine

INT checksum;

INT .EXT source;

INT .EXT dest;

INT(32) count;

checksum := 0;

$MOVEANDCXSUMBYTES(checksum, @dest, @source, count);

pTAL privileged procedure No

Can be executed only by privileged procedures No

Sets condition code Yes

Sets $CARRY No

Sets $OVERFLOW No

$MOVENONDUP (

destaddr

) ;maxwords

VST648.vsd

srcaddr

lastword