pTAL Reference Manual (H06.08+)

Built-In Routines

HP pTAL Reference Manual—523746-006

15-84

$SGWADDR_TO_EXTADDR

expression

is an expression whose value is an SGBADDR or SGXBADDR address.

$SGBADDR_TO_SGWADDR returns expression converted to an SGWADDR address.

The result is undefined if the least significant bit of expression is 1.

$SGWADDR_TO_EXTADDR

$SGWADDR_TO_EXTADDR converts an SGWADDR or SGXWADDR address to an

EXTADDR address.

expression

is an expression whose value is n SGWADDR or SGXWADDR address.

$SGWADDR_TO_EXTADDR returns expression converted to an EXTADDR

address.

pTAL privileged procedure No

Can be executed only by privileged procedures No

Sets condition code No

Sets $CARRY No

Sets $OVERFLOW No

Example 15-82. $SGBADDR_TO_SGWADDR Routine

STRING .SG s;

INT .SG i;

INT j;

@i := $SGBADDR_TO_SGWADDR(@s[j]); !??: OK if @s[j] is at an

! even-byte offset;

! otherwise, @i is undefined.

pTAL privileged procedure No

Can be executed only by privileged procedures No

Sets condition code No

Sets $CARRY No

Sets $OVERFLOW No

expression

( )

VST605.vsd

$SGWADDR_TO_EXTADDR