Mail Archives: djgpp/1996/12/02/04:17:13
Dear Gurus..
The following function has been adapted from a book by Andre LaMothe on
basic game programming. For some reason it causes a segmentation fault
and I can't figure out why. My first assumption is that I have converted
the address of the system timer incorrectly, but all of the video
functions underwent the same transformation and seem to go OK. The code
is being compiled on DJGPP v 2 an run on an i486 DX4 100 (just in case
this is useful)
thankx for your help
robby
_________________________________________________________________________void Delay(int clicks)
{
// this function uses the internal time keeper timer i.e. the one that
goes
// at 18.2 clicks/sec to to a time delay. You can find a 32 bit value of
// this timer at 0000:046Ch
unsigned int *clock = (unsigned int *)0x0046C;
unsigned int now;
// get current time
__djgpp_nearptr_enable();
clock += __djgpp_conventional_base;
now = *clock;
// wait till time has gone past current time plus the amount we eanted to
// wait. Note each click is approx. 55 milliseconds.
while(abs(*clock - now) < clicks){}
__djgpp_nearptr_disable();
} // end Delay
_________________________________________________________________________
go32/v2 version 2.0 built Jan 23 1996 22:03:02
Usage: go32 coff-image [args]
Rename this to go32.exe only if you need a go32 that can run v2 binaries
as
well as v1 binaries (old makefiles). Put ahead of the old go32 in your
PATH.
DPMI memory available: 8 Kb
DPMI swap space available: 9772 Kb
CONFIG=Qemm
LOADHIDATA=C:\QEMM\LOADHI.RF
COMSPEC=C:\COMMAND.COM
BLASTER=A220 I5 D1 H5 P330 T6
SOUND=C:\DRIVERS\SB16
PATH=C:\WINDOWS;C:\DOS;C:\UUPC\BIN;D:\UTILS\ZIP;D:\UTILS\NORTON;D:\VIDEO\VIDDOS;C:\DJGPP\BIN;
DJGPP=c:/djgpp/djgpp.env
TEMP=C:\TEMP
PICNIX_SWITCHAR=-
TZ=WST-8
UUPCSYSRC=c:\uupc\uupc.rc
UUPCNEWS=c:\uupc\news
USER=ROB
HOME=c:\home\ROB
UUPCUSRRC=c:\home\ROB\personal.rc
SNEWSRC=c:\home\ROB\snews.rc
DEBUG=00
ANODE=Mr Gates' windowing environment's sacrificial goat
PROMPT=$p$g
windir=C:\WINDOWS
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