Hi Peter, > Weird, it gets stuck in gpsim about [****] here: > > BCF STATUS,5 > BCF STATUS,6 > **** MOVWF _var_u_char_8_b > ; .line 14; "bDIV.c" return var_u_char_8_b; > MOVF _var_u_char_8_b,W > RETURN > ; exit point of _div1
Any message from gpsim? > The offending routine is at the bottom of the post, I've added ******* > to the offending bit. I think I will upgrade my installation (Slackware) > to see if latest gpsim and sdcc on a fresh installation makes a > difference, not that it should. Just in case there is something odd this > will not destroy the old installation as it will be on a different disk > partition. Did you recompile the pic14 library after upgrading? I use gpsim r1748 (roughly 0.21.12-pre) and SDCC r4440, when last I looked gpsim releases were rather outdated, maybe you should use the svn version as well? > The idea of the function below is that it outputs a pulse 1msec wide for > position = -1000 and 2msec wide for position = 1000. Checked your code with a main() that calls the given function with arguments of -1000, -500, 0, 500, and 1000, and set a breakpoint once the result of __divsint has been stored into the registers (address taken from .lst file). I then used 'trace 20' to obtain the past assignments of both result bytes and found they were totally reasonable 0x0000, 0x003e, 0x007d, 0x00bb, and 0x00fa respectively. Target PIC was a 16f877 (which one do you use?). ((Two side notes: If you put position + 1000 in an unsigned variable, SDCC should optimize the division to right shifts---and possibly hide your problem... Using 8u instead of 8 might also be required...)) You may want to inspect your .map files to see if you are out of memory; or if gputils have allocated some variables where they should not have been, possibly instructed by SDCC; or ... -- Regards, Raphael Neider ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Sdcc-user mailing list Sdcc-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sdcc-user
