Re: dosemu 1.1.x and 1.1.4.13 bug (?) on CPUs faster than 2.0GHz

[Maurilio Longo <maurilio.longo@libero.it>]

Ok, with this patch it works ok :)

So I've switched to 1.1.4.13, but now my clipper program is not able to print to a serial
printer anymore :( even if a

dir > com1:

from dos prompt works ok, but my program uses a third party library to communicate with
serial devices

I fear it has to do with latest changes to serial code... I'll try to dig a little more,
but I'm not familiar with dosemu code and linux programming in general...

regards.



Bart Oldeman ha scritto:

> On Wed, 12 Mar 2003, Maurilio Longo wrote:
>
> > I fear that cpu speed is inside a long int and this shoud explain why it happens, I'd
> >
> > like to know from someone who writes dosemu if this is true and how they plan to fix
> > this.
>
> it's a multiplication that overflows from an int -- try this patch:
>
> --- dosemu-1.1.4.13/src/base/init/config.c      Sat Feb 15 14:49:31 2003
> +++ dosemu-1.1.4.14/src/base/init/config.c      Wed Mar 12 14:38:28 2003
> @@ -484,7 +484,7 @@
>                 cdd[6]=0; sscanf(cdd,"%d",&df);
>                 /* speed division factor to get 1us from CPU clocks - for
>                  * details on fast division see timers.h */
> -               chz = (di * 1000000) + df;
> +               chz = (di * 1000000LL) + df;
>
>                 /* speed division factor to get 1us from CPU clock */
>                 config.cpu_spd = (LLF_US*1000000)/chz;

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