gnupic: Re: gpsim - GTK
Subject:
re: gpsim-GTK
From:
"polly " ####@####.####
Date:
17 May 2006 15:21:20 +0100
Message-Id: <op.s9o8s6rys46xuf@self>
Scott,
Thanks again for your help, gpsim is my only protection
against my own bone-headed PIC coding efforts.
I'm using gtk+extra2-1.1.0-1.i386.rpm and
gtk+extra2-devel-1.1.0-1.i386.rpm
and gpsim's SVN from yesterday. Here's the source:
// a-252-sim.c
#pragma stack 0x200 256
#define __18f252
#include "pic18fregs.h"
#include "stdio.h"
void main() {
TRISB = 0x00;
PORTB = 0xFF;
// dflt: T0CON == 0xFF
// clear 8~16 bit mode bit
T0CONbits.T08BIT = 0;
// clear extn~intn clock source bit
T0CONbits.T0CS = 0;
// Write timer
TMR0L = 0xFF;
TMR0H = 0xFA;
}
.. which I compiled using: sdcc -V -mpic16 -p18f252
I normally run gpsim from within emelfm file manager using:
gpsim -pp18f252 -s ${tDir1}/${tNam1}.cod
I''ve just verified the behaviour using root's xterm doing this:
</opt/src/18f> gpsim -s ./a252-sim.cod
get the main gpsim window, Window Open Source Window
in Source broswer, a252-sim.asm shows fine, right click line 180, line
following
MOVWF PORTB, press "run" sim halts correctly at that line.
Open Ram window, verify TRISB and PORTB ram contents correct.
Leave Ram window open, press "Step" nothing happens.
Close Ram window, PC Caret advances by itself.
If I alternately close and open the ram window I can step through. The
T0CON reg in the
ram window is not updating, which is the bit of code I was trying to fix
in the first place.
Thanks again,
p
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