gnupic: Trouble with macros conditionally generating code
Subject:
Re: Trouble with macros conditionally generating code
From:
Marco Pantaleoni ####@####.####
Date:
19 Nov 2004 09:07:45 +0000
Message-Id: <20041119090718.GE29386@lucifero>
On Fri, Nov 19, 2004 at 12:18:28AM -0800, Pete Elmore wrote:
>
> fcall macro label
> if ((high(label) & 0x18) != (high($) & 0x18))
> if((high(label) & 8) == 8)
> bsf 0xa, 3
> else
> bcf 0xa, 3
> endif
> if((high(label) & 0x10) == 0x10)
> bsf 0xa, 4
> else
> bcf 0xa, 4
> endif
> else
> nop
> nop
> endif
> call label
> endm
>
> Note the additional nops. They ensure that the macro always generates
> three instructions, rather than sometimes generating three and sometimes
> generating one. Although I acknowledge the possibility that my code is
> broken in some way, I am fairly certain that this is a bug in the
> assembler.
But, doesn't this version produce error 118 ("Error [118] Overwriting
previous address contents.")?
On the second pass, when the assembler overwrite the "nop"s, it should
shout, if I am not wrong.
--
========================================================================
Marco Pantaleoni ####@####.####
Padova, Italy
elastiC language developer http://www.elasticworld.org
