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Corrected off by 2 error in DELAY macro (it was delaying for 2 * value).

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From Bruce Evans.
This commit is contained in:
Rodney W. Grimes 1993-08-24 01:24:43 +00:00
parent f8851ba62f
commit 237fbcc806
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=322
2 changed files with 6 additions and 6 deletions
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6
sys/amd64/isa/isa.c
View File

@ -53,7 +53,7 @@
* aid in bug reports. * aid in bug reports.
* 27 May 93 Guido van Rooij New routine add find_isa_dev * 27 May 93 Guido van Rooij New routine add find_isa_dev
*/ */
static char rcsid[] = "$Header: /home/cvs/386BSD/src/sys.386bsd/i386/isa/isa.c,v 1.1.1.1 1993/06/12 14:58:01 rgrimes Exp $"; static char rcsid[] = "$Header: /a/cvs/386BSD/src/sys/i386/isa/isa.c,v 1.2 1993/06/18 22:18:57 rgrimes Exp $";
/* /*
* code to manage AT bus * code to manage AT bus
@ -570,12 +570,12 @@ isa_strayintr(d) {
/* /*
* Wait "n" microseconds. * Wait "n" microseconds.
* Relies on timer 1 counting down from (TIMER_FREQ / hz) at * Relies on timer 1 counting down from (TIMER_FREQ / hz) at
* (2 * TIMER_FREQ) Hz. * (1 * TIMER_FREQ) Hz.
* Note: timer had better have been programmed before this is first used! * Note: timer had better have been programmed before this is first used!
* (The standard programming causes the timer to generate a square wave and * (The standard programming causes the timer to generate a square wave and
* the counter is decremented twice every cycle.) * the counter is decremented twice every cycle.)
*/ */
#define CF (2 * TIMER_FREQ) #define CF (1 * TIMER_FREQ)
#define TIMER_FREQ 1193182 /* XXX - should be elsewhere */ #define TIMER_FREQ 1193182 /* XXX - should be elsewhere */
extern int hz; /* XXX - should be elsewhere */ extern int hz; /* XXX - should be elsewhere */

6
sys/i386/isa/isa.c
View File

@ -53,7 +53,7 @@
* aid in bug reports. * aid in bug reports.
* 27 May 93 Guido van Rooij New routine add find_isa_dev * 27 May 93 Guido van Rooij New routine add find_isa_dev
*/ */
static char rcsid[] = "$Header: /home/cvs/386BSD/src/sys.386bsd/i386/isa/isa.c,v 1.1.1.1 1993/06/12 14:58:01 rgrimes Exp $"; static char rcsid[] = "$Header: /a/cvs/386BSD/src/sys/i386/isa/isa.c,v 1.2 1993/06/18 22:18:57 rgrimes Exp $";
/* /*
* code to manage AT bus * code to manage AT bus
@ -570,12 +570,12 @@ isa_strayintr(d) {
/* /*
* Wait "n" microseconds. * Wait "n" microseconds.
* Relies on timer 1 counting down from (TIMER_FREQ / hz) at * Relies on timer 1 counting down from (TIMER_FREQ / hz) at
* (2 * TIMER_FREQ) Hz. * (1 * TIMER_FREQ) Hz.
* Note: timer had better have been programmed before this is first used! * Note: timer had better have been programmed before this is first used!
* (The standard programming causes the timer to generate a square wave and * (The standard programming causes the timer to generate a square wave and
* the counter is decremented twice every cycle.) * the counter is decremented twice every cycle.)
*/ */
#define CF (2 * TIMER_FREQ) #define CF (1 * TIMER_FREQ)
#define TIMER_FREQ 1193182 /* XXX - should be elsewhere */ #define TIMER_FREQ 1193182 /* XXX - should be elsewhere */
extern int hz; /* XXX - should be elsewhere */ extern int hz; /* XXX - should be elsewhere */