gnupic: Bug in simulation of BSF for in/out ports still present in 0.20.4 :-(
Subject:
Re: Bug in simulation of BSF for in/out ports still present in 0.20.4 :-(
From:
Wojtek Zabolotny ####@####.####
Date:
20 Sep 2000 11:51:10 -0000
Message-Id: <20000920134418.A1104@wzab.nasz.dom>
On Tue, Sep 19, 2000 at 09:11:05PM -0500, Scott Dattalo wrote:
> As you can see, my version did not change portc to 0x20. Hmm. What inlude file
> are you using?
>
I downloaded the gpsim-0.20.4.tar.gz, length 436885
the md5sum is: 567fa74ab68a10e0d297ab2cf59cbf02
(I get it through the link at www.gnupic.org/simulators)
I had to do some "cosmetic" changes to get it compile in Debian/Linux:
1) change #include <eXdbm/eXdbm.h>
into #include <eXdbm.h>
everywhere
2) change the detection of eXdbm in configure.in
- AC_CHECK_HEADER(eXdbm/eXdbm.h,,[
+ AC_CHECK_HEADER(eXdbm.h,,[
- AC_CHECK_LIB(eXdbm,eXdbmInit,,[
+ AC_CHECK_LIB(eXdbm,main,,[
3) explicitly add the linking of readline library in /gpsim/Makefile.am
-gpsim_LDADD = ../src/libgpsim.la ../cli/libgpsimcli.la ../gui/libgui.la @GTK@ @GDK@ @GLIB@ -lstdc++ @X_LDFLAGS@ @Y_LDFLAGS@ @LIBREADLINE@
+gpsim_LDADD = ../src/libgpsim.la ../cli/libgpsimcli.la ../gui/libgui.la @GTK@ @GDK@ @GLIB@ -lstdc++ @X_LDFLAGS@ @Y_LDFLAGS@ -lreadline
then just ran the "deb-make", and "fakeroot dpkg-buildpackage"
I use : gtk+extra_0.99.10-2
exdbm_1.0b2-2
(sources downloaded from "woody" and recompiled in "potato")
All the changes have nothing to do with the "core" gpsim functions...
Is it possible, that the gpsim-0.20.4.tar.gz, I've downloaded, is not the
right one?
> Note that this program has floating inputs. Unlike a real pic device which would
> oscillate itself to death, gpsim floating inputs will read as zeroes. So if you
> change the tris register to make an I/O an input, this line will float low. Just
> so this is clear, let's look at the code:
>
I know that the 6 and 7 bits of PORTC are floating, but it can cause just
the following results of BSF PORTC,5 , when initial value is 0x3f:
0x3f, 0x7f, 0xbf 0xff. However the value read from PORTC is 0x3f, so the
floating pins are assumed to be zeroes...
It does not explain the phenomenon of zeroing of bits 0..4 ...
I'm interested if I'm the only one who experience this problem?
Are there any other Debian/Linux "potato" users on i>=386 platforms, who
use gpsim and do not observe that problem?
--
Greetings
Wojciech Zabolotny
http://www.ise.pw.edu.pl/~wzab
http://www.freedos.org Free DOS for free people!
