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

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

No, I use an old MS-DOS 5.x, now, even with latest patch from Bart, I can print to my serial
printer with a

dir > com1:

but not from my clipper (protect mode, telepathy as comx: access library) app...

To be more precise I can print very short strings, that is

tp_open(1...)  // open com port 1
tp_send(1, "hi there")  // send string
tp_close(1)

works, but if there are more tp_send() one after the other I get no output!?!!

1.1.1.x was working nicely

:(

regards.

Maurilio.




Regards.

Norman Schmidt Jr ha scritto:

> 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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 __________
|  |  | |__| md2520@mclink.it
|_|_|_|____| Team OS/2 Italia