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In message <20000919001809.54846024.-1900206304@big.or.jp>, Genjiro YAJIMA writes:

> PC-9821Xa10/K8$B$G$9!#(B
> $B%7%j%"%k%3%s%=!<%k$r;HMQ$7$J$$>uBV$G$3$N%a%C%;!<%8$O=P$?$3$H(B
> $B$O$J$+$C$?$N$G$9$,$3$l<+BN$O2?$+Jd@5$7$F$$$k%a%C%;!<%8$J$s$@(B
> $B$H;W$$$^$9$,!#!#!#(B

$B;~7W$,$i$_$J$N$G$9$,!"$A$g$C$H$h$/$o$+$C$F$$$^$;$s!#(B
$B%7%j%"%k%3%s%=!<%k$G$N$_=P$k$H$$$&$N$OLdBj$,$"$j$=$&$J5$G[$r46$8$5$;$^$9$M!#(B

$B:G=i$N%a!<%k$K$"$C$?0J2<$r8+Mn$H$7$F$$$?$N$G$9$,!"(B

> `microuptime() went backwards (1.979004 -> 1.381280)'$B$H$$$&(B
> $B%a%C%;!<%8$,=P$F$k$H$3$m$+$i!"2?$+$7$iLdBj$,$"$k$H;W$&$s$G$9(B
> $B$,!"$3$l$O2?$r0UL#$7$F$$$k$N$G$7$g$&$+!)(B

Pentium $B$@$H3N$+(B CPU$BFbB"$N(B Time Stamp Counter $B$,$"$C$?$H;W$&$N$G!"(B
$B$"$^$j:,5r$NL5$$D>46$J$N$G$9$,!"$=$l$r;H$o$J$$$h$&$K%+!<%M%k$r(B
$BD>$7$F$_$k$H>u67$,JQ$o$k$+$b$H$$$&5$$,$7$^$9!#(B

sys/pc98/pc98/clock.c $B$N(B startrtclock() $B$K(B tsc_present $B$r@_Dj$9$k(B
$B%3!<%I$,$"$k$N$G!"Nc$($PE:IU$N(B diff $B$N$h$&$K=$@5$7$F;n$7$F$_$F$O(B
$B$I$&$G$7$g$&!#(B

# $BB3$/$h$&$J$i(B FreeBSD98-testers $B$+(B tech-jp ($B$@$C$1(B?) $B$"$?$j$G(B
----
NOKUBI Hirotaka
Fingerprint20 = DEBC 0793 7CD6 92F1 0A1F  A792 9E2F EEEE A41B 171D


*** clock.c	Wed Jan  5 21:35:03 2000
--- clock.c.notsc	Tue Sep 19 12:08:50 2000
***************
*** 918,926 ****
--- 918,928 ----
  		timer_freq = 2457600L; /* 2.4576 MHz */
  #endif /* PC98 */
  
+ #if 0
  	if (cpu_feature & CPUID_TSC)
  		tsc_present = 1;
  	else
+ #endif
  		tsc_present = 0;
  
  #ifndef PC98
