RE: [colorforth] Strage ColorForth results

[Frédéric DUBOIS <frederic.dubois@xxxxxxxxxxxxx>]

> -----Message d'origine-----
> De : John Drake [mailto:jmdrake_98@xxxxxxxxx]
> Envoyé : mar. 24 février 2004 16:15
> À : colorforth@xxxxxxxxxxxxxxxxxx
> Objet : Re: [colorforth] Strage ColorForth results
> 
> 
> 
> --- "Roman Pavlyuk (personal)" <john@xxxxxxxxxxxxx>
> wrote:
> > Since in CF IF and -IF are implemented as jz and jnc
> > opcodes
> > that check values of Z and C flags respectively.
> > 
> > Try inserting '?' after the literal -- it compiles
> > into test eax, eax,
> > which should set Z flag (C flag is zeroed, but plz
> > check with Inter's
> > manual)
> 
> Hello Roman,
> 
> I don't think I'm following you.  I already have a '?'
> inserted after the literal.
> 
> Again here is one version of the code:
> 
> : 0? ? drop if 0 ; then 1 ;
> 

Maybe drop modifies the Z flag in an unpredictable way ?


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