GNU bug report logs - #8751
24.0.50; CCL is broken

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Package: emacs;

Reported by: Kazuhiro Ito <kzhr <at> d1.dion.ne.jp>

Date: Sat, 28 May 2011 12:51:02 UTC

Severity: normal

Found in version 24.0.50

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #8 received at 8751 <at> debbugs.gnu.org (full text, mbox):

From: Kazuhiro Ito <kzhr <at> d1.dion.ne.jp>
To: 8751 <at> debbugs.gnu.org
Subject: Re: bug#8751: 24.0.50; CCL is broken
Date: Mon, 30 May 2011 22:09:30 +0900

The problem may be that ccl-compiler produce negative integer as CCL
code (at latest, since Emacs21).

(ccl-compile
 '(1 (loop
      (read r0)
      (write-repeat r0))))

-> [1 4 14 -506 22]
           ~~~~

But the document of ccl.c says "CCL code is a sequence of 28-bit
non-negative integers", and current ccl.c does not accept such
negative value.  I don't know which whould be changed, ccl-compiler or
document and current ccl.c.

Kazuhiro Ito wrote:
>
> Below code raises error "Error in CCL program at 4th code" on trunk.
> 
> (progn
>   (define-ccl-program ccl-test
>     '(1 (loop
> 	 (read r0)
> 	 (write-repeat r0))))
>   (ccl-execute-on-string 'ccl-test (make-vector 9 0) "_"))

-- 
Kazuhiro Ito
This bug report was last modified 13 years and 358 days ago.

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