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

[Norman Schmidt Jr <norman@norman.com.br>]

Maurilio, were you using freedos with dosemu before you switched to 
1.1.4.13 and your clipper apps were printing? In freedos? I never could 
put clipper printing (neither serial nor parallel) to work with 
freedos+dosemu, but I started to use dosemu with 1.1.4, and never tried 
any previous versions. Did the old versions of dosemu print from clipper 
apps using freedos? The only way I could put clipper apps to print using 
dosemu was using ms-dos or dr-dos...
Norman

Maurilio Longo escreveu:

>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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