pTAL Reference Manual (H06.03+)

Built-In Routines

HP pTAL Reference Manual—523746-005

15-24

$ASCIITOFIXED

$ASCIITOFIXED converts an ASCII value to a FIXED value.

bufferaddr input,output

BADDR:variable

is the byte address from which $ASCIITOFIXED reads ASCII digits. When

$ASCIITOFIXED completes, bufferaddr contains the address following the

last byte read.

maxdigits input

uINT:value

is the maximum number of ASCII digits to read from bufferaddr.

remainingdigits output

uINT:variable

is the number of bytes that $ASCIITOFIXED did not convert because it

encountered a nonnumeric ASCII byte. remainingdigits must be an INT

variable; it cannot be a STRING, UNSIGNED, or USE variable or a bit field.

Example 15-10. $ALPHA Routine

STRING some_char;

IF $ALPHA (some_char) THEN ... ; ! Test for alphabetic character

pTAL privileged procedure No

Can be executed only by privileged procedures No

Sets condition code Yes

Sets $CARRY No

Sets $OVERFLOW Yes

$ASCIITOFIXED (

bufferaddr

, ,

maxdigits

) ;qvalueout

qvaluein

VST606.vsd

remainingdigits