pTAL Reference Manual (H06.03+)

Built-In Routines

HP pTAL Reference Manual—523746-005

15-52

$HIGH

$HIGH converts the high-order (leftmost) 16 bits of an INT(32) or EXTADDR value to

an INT value.

dbl-expression

is an expression whose value is INT(32) or EXTADDR.

$HIGH returns the high-order 16 bits of dbl-expression and preserves the sign bit.

$HIGH does not cause overflow.

$IFIX

$IFIX converts a signed INT value to a FIXED(fpoint ) value.

pTAL privileged procedure No

Can be executed only by privileged procedures No

Sets condition code No

Sets $CARRY No

Sets $OVERFLOW No

Example 15-41. $HIGH Routine

INT a;INT(32) b;

INT .EXT c;

EXTADDR d;

a := $HIGH(b); ! OK: b is INT(32)

a := $HIGH(@c); ! OK: @c is EXTADDR

a := $HIGH(@b); ! ERROR: @b is WADDR

a := $HIGH(c); ! ERROR: c is INT

a := $HIGH(d); ! OK: d is EXTADDR

( )

VST091.vsd

$HIGH

dbl-expression

( )

VST092.vsd

$IFIX

int-expression fpoint