home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Grab Bag
/
Shareware Grab Bag.iso
/
090
/
jazclib1.arc
/
JZDELAY.C
< prev
next >
Wrap
Text File
|
1986-04-06
|
1KB
|
30 lines
/*
┌────────────────────────────────────────────────────────────────────────────┐
│jzdelay.c │
│Hold the program in a wait state for the specified number of clock tics. │
│Note that this is NOT tied to processor speed. │
│ │
│Notes: there are approx 18.2 tics a second. │
│ │
│ (C) JazSoft Software by Jack A. Zucker (301) 794-5950 │
└────────────────────────────────────────────────────────────────────────────┘
*/
jzdelay(ftics)
long ftics;
{
long wstart; /* hold the starting time */
long welapse; /* count of elapsed tics */
union REGS sreg,dreg;
sreg.x.ax = 0; /* return timer count function */
int86(0x1A,&sreg,&dreg);
wstart = (long) (dreg.x.cx << 16) | dreg.x.dx;
welapse = 0;
while (ftics > welapse) {
sreg.x.ax = 0; /* return timer count function */
int86(0x1A,&sreg,&dreg);
welapse = ((long) (dreg.x.cx << 16) | dreg.x.dx) - wstart;
}
}