Hex to Decimal

[Aaron Lewis_1]

Is there a quick way to convert a HEX value to decimal in a script?

[Uwe Zessin · Accepted solution]

Yes, pretty easy:

$ v = %xfe
$ show symbol v
V = 254 Hex = 000000FE Octal = 00000000376
$

$ h = "A7"
$ v = %x'h'
$ show symbol v
V = 167 Hex = 000000A7 Octal = 00000000247
$

$ write sys$output %xc9
201
$

[Aaron Lewis_1]

Thanx!!!

[Jan van den Ende]

Aaron,

You asked: "in a script"

Probably then, the best thing is F$FAO.

-- use an integer value as Oct, Dec, Hex string:

$ write sys$output "Hex value of ''int' :", f$fao("!XL", int )

$ write sys$output "Oct value of ''int' :", f$fao("!OL", int )

For decimal, 7 positions WITH leading zeroes:

$ write sys$output "7digit value of ''int' :", f$fao("!7ZL", int )


For decimal, 7 positions SUPPRESSING leading zeroes:

$ write sys$output "7 pos right adjust value of ''int' :", f$fao("!7SL", int )

- the S every time stands for Longword, X for Hex, O for Oct, Z for (leading) Zeroes, S for (leading) Spaces.
A number between the "!" and the format specifier is the number of positions.


It DOES take some getting used to, but its uses are simply phantastic.

HELP LEXICAL F$FAO ARG for MUCH more!

Proost.

Have one on me.

jpe

[Robert_Boyd]

Jan,

It's the L that stands for Longword

The S stands for Signed, not spaces. It does have the additional effect of filling with blanks if the width of the field is specified.
The Z format causes the sign of the value to be ignored.

!SL produces no blanks
!nSL will produce leading blanks if the number is smaller than the field.

Robert

[Jan van den Ende]

Robert,

the "L" was a typo.
I did not know about "S" for Signed, I always use it for what you call the additional effect.
Does "Z" really IGNORE the sign, or does it treat the Longword as UNsigned?
I will have to test it sometime.

Proost.

Have one on me.

jpe