working interlocked system

[unix-history] / usr / src / sys / vax / uba / dh.c

diff --git a/usr/src/sys/vax/uba/dh.c b/usr/src/sys/vax/uba/dh.c
index 5448f44..a7dbb59 100644 (file)
--- a/usr/src/sys/vax/uba/dh.c
+++ b/usr/src/sys/vax/uba/dh.c
@@ -1,4 +1,4 @@
-/*     dh.c    4.20    81/02/21        */
+/*     dh.c    4.21    81/02/22        */

 
 #include "dh.h"
 #if NDH11 > 0
 
 #include "dh.h"
 #if NDH11 > 0


@@ -552,10 +552,10 @@ dhstart(tp)
        if (nch) {
                car = UBACVT(tp->t_outq.c_cf, dhinfo[dh]->ui_ubanum);
                addr->un.dhcsrl = unit|((car>>12)&0x30)|DH_IE;
        if (nch) {
                car = UBACVT(tp->t_outq.c_cf, dhinfo[dh]->ui_ubanum);
                addr->un.dhcsrl = unit|((car>>12)&0x30)|DH_IE;

-               DELAY(5);

                unit = 1 << unit;
                dhsar[dh] |= unit;
                addr->dhcar = car;
                unit = 1 << unit;
                dhsar[dh] |= unit;
                addr->dhcar = car;

+               DELAY(5);

                addr->dhbcr = -nch;
                addr->dhbar |= unit;
                tp->t_state |= BUSY;
                addr->dhbcr = -nch;
                addr->dhbar |= unit;
                tp->t_state |= BUSY;