[comp.os.minix] rs2.s for MINIX ST;

ralf@ptavv.ka.sub.org (Ralf Wenk) (02/27/91)

In article <meulenbr.667037196@cstw168>
meulenbr@cst.prl.philips.nl (Frans Meulenbroeks) wrote:
> Be warned. There is some problem with 1.5.10.3. I forgot the details
> about it, but I posted an unofficial patch for it just after releasing
> 1.5.10.3. 

Today I went from 1.5.10.2 to 1.5.10.3. The "unofficial" patch fixes
a problem if more than one harddisk is used. Also 1.5.10.3 brings
back the "Gross bug in fs/open.c".
 
> I planned to go for a 1.5.10.4 which would incorporate this patch, but
> unfortunately my disk went bad, and I had some pretty busy times.
> ...
> If you send me mail or fixes in the past, and I didn't respond, 
> just try again. Your mail is maybe lost, or your fixes are gone with
> the disk. Anyway, any fixes for 1.5.10.3 are still appreciated.

I did get a response, but as 1.5.10.4 seems to be gone with the disk
I post it too. This piece of software is working for me since November
1990 and gives a significant speedup in RS232 processing. BUT you must
have at least 1.5.10.2 to be able to use it.

There are patches for the kernel Makefile, rs323.c and the rs2.s source.
All you have to do is to change C_RS232_INT_HANDLERS in <minix/config.h>
to enable the assembler routines. to enable the assembler routines. When I used the C handlers my newsfeed
tolds me that my machine was sending 135cps at 2400bps but itself sends
220cps to me (UUCP g). With assembler handlers I send at the "practical
upper limit" now. Meanwhile I had to ask my feed - 220 cps, too :-)


Ralf Wenk


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end


-- 
-- 
Ralf Wenk -- ralf@ptavv.ka.sub.org