[Coco] Microware C Compiler port

[Bob Devries]

According to the documentation, if you want to use printf() to print longs 
or floats, the following needs to be added somewhere at the beginning of the 
code, to let the linker know to use the correct library routine:

    pffinit(); /* for floats */
    pflinit(); /* for longs */

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "John W. Linville" <linville at tuxdriver.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Thursday, January 22, 2009 9:53 AM
Subject: Re: [Coco] Microware C Compiler port


> On Wed, Jan 21, 2009 at 07:05:23AM -0500, Steven Hirsch wrote:
>> On Tue, 20 Jan 2009, John W. Linville wrote:
>
>>> Some of the changes are simple, such as changing "%6D" to "%6d",
>>> implementing a utility function ("sig_err"), and fixing an actual
>>> syntax error.  That was enough to get the program basically running,
>>> but it was producing 0 counts for lines, words, and characters.
>>>
>>> The original sources had those count vars defined as long.  Changing
>>> them to int yielded correct results, except that it doesn't take much
>>> to overflow the character count... :-(
>>>
>>> Did this compiler have problems with long in the original OS-9/6809
>>> version?  It is bad enough to not handle long, but to compile it
>>> without complaint and simply not work seems rather  wrong.  FWIW,
>>> changing to 'long int' didn't change anything.
>
> So it turns-out that leaving the vars declared as long and simply
> casting them to int in the printf arguments yields the same results
> as simply declaring them as int in the first place.  To me this
> suggests that the basic code generation for the long type is working.
> Perhaps there is some different conversion format needed for the
> Microware printf to handle long?
>
>>> Still, it _is_ cool to compile for OS-9 on my Linux box... :-)
>>
>> Thanks, John.  The feedback is appreciated.  I'm going to gather input
>> and hopefully work on a more refined release for the near future.
>
> Sounds great.  I'd love to hear about your future plans.
>
> John
>
> P.S.  New diff from the original Minix sources inlined below...
>
> --- minix/commands/wc.c 1987-01-02 04:16:15.000000000 -0500
> +++ wc.c 2009-01-21 18:47:27.000000000 -0500
> @@ -1,9 +1,15 @@
> /* wc - count lines, words and characters Author: David Messer */
>
> -#include "stdio.h"
> -#define isdigit(c) (c >= '0' && c <= '9)
> +#include <stdio.h>
> +#define isdigit(c) (c >= '0' && c <= '9')
> #define isspace(c) (c == ' ' || c == '\t' || c == '\n' || c == '\f' || c 
> == '\r')
>
> +std_err(str)
> +char *str;
> +{
> + fprintf(stderr, "%s", str);
> +}
> +
> /*
>  *
>  * Usage:  wc [-lwc] [names]
> @@ -79,9 +85,9 @@ char *argv[];
>   /* Check to see if input comes from std input. */
>   if (k >= argc) {
>  count();
> - if(lflag) printf(" %6D", lcount);
> - if(wflag) printf(" %6D", wcount);
> - if(cflag) printf(" %6D", ccount);
> + if(lflag) printf(" %6d", (int)lcount);
> + if(wflag) printf(" %6d", (int)wcount);
> + if(cflag) printf(" %6d", (int)ccount);
>  printf(" \n");
>  fflush(stdout);
>  exit(0);
> @@ -99,18 +105,18 @@ char *argv[];
>  } else {
>  /* Next file has been opened as std input. */
>  count();
> - if(lflag) printf(" %6D", lcount);
> - if(wflag) printf(" %6D", wcount);
> - if(cflag) printf(" %6D", ccount);
> + if(lflag) printf(" %6d", (int)lcount);
> + if(wflag) printf(" %6d", (int)wcount);
> + if(cflag) printf(" %6d", (int)ccount);
>  printf(" %s\n", argv[k]);
>  }
>  k++;
>   }
>
>   if(tflag) {
> - if(lflag) printf(" %6D", ltotal);
> - if(wflag) printf(" %6D", wtotal);
> - if(cflag) printf(" %6D", ctotal);
> + if(lflag) printf(" %6d", (int)ltotal);
> + if(wflag) printf(" %6d", (int)wtotal);
> + if(cflag) printf(" %6d", (int)ctotal);
>  printf(" total\n");
>   }
>
> -- 
> John W. Linville Linux should be at the core
> linville at tuxdriver.com of your literate lifestyle.
>
> --
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