Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.sys.acorn.programmer > #425 > unrolled thread

IF THEN ELSE in ObjAsm

Back to article view | Back to comp.sys.acorn.programmer

Contents

  IF THEN ELSE in ObjAsm cferris@freeRemoveuk.com.invalid - 2011-06-13 15:15 +0100
    Re: IF THEN ELSE in ObjAsm Rick Murray <heyrickmail-usenet@yahoo.co.uk> - 2011-06-13 20:47 +0200
    Re: IF THEN ELSE in ObjAsm Martin Wuerthner <spamtrap@mw-software.com> - 2011-06-14 11:46 +0200
      Re: IF THEN ELSE in ObjAsm cferris@freeRemoveuk.com.invalid - 2011-06-18 21:53 +0100

#425 — IF THEN ELSE in ObjAsm

Hi

What is the IF THEN ELSE ENDIF syntax  for the Acorn 'ObjAsm'?

Been trying something like :-

*********
Debug_01 * TRUE

        AREA    |Asm$$Code|, CODE, READONLY 
..                    ;main code


[ Debug_01 = FALSE   ;if

..                   ;Code

|                    ;else
 
..                   ;Different Code

]                    ;endif


Thanks
-- 
Colin Ferris Cornwall UK

[toc] | [next] | [standalone]

#426

On 13/06/2011 16:15, cferris@freeRemoveuk.com.invalid wrote:

> What is the IF THEN ELSE ENDIF syntax  for the Acorn 'ObjAsm'?

> Been trying something like :-
> [ Debug_01 = FALSE   ;if
...
> |                    ;else
...
> ]                    ;endif

Yup, that looks correct, except TRUE is {TRUE} and FALSE is {FALSE}...


Pick up a copy of the guide from:
   http://foundation.riscos.com/Private/manuals/Toolbox/Asm.pdf


Best wishes,

Rick.

[toc] | [prev] | [next] | [standalone]

#429

In message <5e26bce251.cferris@cferris.freeuk.com>
          cferris@freeRemoveuk.com.invalid wrote:

> What is the IF THEN ELSE ENDIF syntax  for the Acorn 'ObjAsm'?

> Been trying something like :-

> *********
> Debug_01 * TRUE

>         AREA    |Asm$$Code|, CODE, READONLY
> ..                    ;main code
>
> [ Debug_01 = FALSE   ;if
> ..                   ;Code
> |                    ;else
> ..                   ;Different Code
> ]                    ;endif

You would normally do it like that:

          GBLL Debug_01
Debug_01  SETL {TRUE}

[ Debug_01
 ... code for Debug_01 = TRUE ...
|
 ... code for Debug_01 = FALSE ...
]

There is no need to test for {TRUE} or {FALSE} explicitly, just use 
the boolean label itself as the condition.

-- 
Martin
---------------------------------------------------------------------
Martin Wuerthner         MW Software      http://www.mw-software.com/
        RISC OS Software for Design, Printing and Publishing
---------------------------------------------------------------------

[toc] | [prev] | [next] | [standalone]

#451

In message <f16427e351.martin@bach.planiverse.com>
          Martin Wuerthner <spamtrap@mw-software.com> wrote:

> In message <5e26bce251.cferris@cferris.freeuk.com>
>           cferris@freeRemoveuk.com.invalid wrote:
> 
[snip]

> 
> You would normally do it like that:
> 
>           GBLL Debug_01
> Debug_01  SETL {TRUE}
> 

Thanks Martin - it was the above that I was getting wrong.

-- 
Colin Ferris Cornwall UK

[toc] | [prev] | [standalone]

Back to top | Article view | comp.sys.acorn.programmer

csiph-web