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Make the loop count self-clocking, to avoid very long delays on slow CPUs.

This commit is contained in:
is 1998-06-15 14:43:25 +00:00
parent 3a54f4c95c
commit 3625a05f38
1 changed files with 23 additions and 18 deletions
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41
regress/sys/arch/m68k/emuspeed/emuspeed.c
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@ -1,4 +1,4 @@
/* $NetBSD: emuspeed.c,v 1.2 1998/01/09 08:03:56 perry Exp $ */
/* $NetBSD: emuspeed.c,v 1.3 1998/06/15 14:43:25 is Exp $ */
#include <setjmp.h>
#include <signal.h>
@ -9,26 +9,26 @@
#include "speed.h"
#define PRECISION 500
const struct test {
char *name;
void (*func)__P((int));
char *comment;
int count;
} testlist[] = {
{"Illegal", illegal, "(test: unimplemented)", 1},
{"mulsl Da,Db", mul32sreg, "(test: should be native)", 200000000},
{"mulsl sp@(8),Da", mul32smem, "(test: should be native)\n",
200000000},
{"Illegal", illegal, "(test: unimplemented)"},
{"mulsl Da,Db", mul32sreg, "(test: should be native)"},
{"mulsl sp@(8),Da", mul32smem, "(test: should be native)\n"},
{"mulsl Dn,Da:Db", mul64sreg, "emulated on 68060", 2000000},
{"mulul Dn,Da:Db", mul64ureg, "\t\"", 2000000},
{"mulsl sp@(8),Da:Db", mul64smem, "\t\"", 1000000},
{"mulul sp@(8),Da:Db", mul64umem, "\t\"\n", 1000000},
{"mulsl Dn,Da:Db", mul64sreg, "emulated on 68060"},
{"mulul Dn,Da:Db", mul64ureg, "\t\""},
{"mulsl sp@(8),Da:Db", mul64smem, "\t\""},
{"mulul sp@(8),Da:Db", mul64umem, "\t\"\n"},
{"divsl Da:Db,Dn", div64sreg, "\t\"", 500000},
{"divul Da:Db,Dn", div64ureg, "\t\"", 500000},
{"divsl Da:Db,sp@(8)", div64smem, "\t\"", 300000},
{"divul Da:Db,sp@(8)", div64umem, "\t\"\n", 300000},
{"divsl Da:Db,Dn", div64sreg, "\t\""},
{"divul Da:Db,Dn", div64ureg, "\t\""},
{"divsl Da:Db,sp@(8)", div64smem, "\t\""},
{"divul Da:Db,sp@(8)", div64umem, "\t\"\n"},
{NULL, NULL, NULL}
};
@ -43,6 +43,7 @@ main(argc, argv)
{
const struct test *t;
clock_t start, stop;
int count;
if (signal(SIGILL, &illhand))
@ -60,11 +61,15 @@ main(argc, argv)
continue;
}
start = clock();
t->func(t->count);
stop = clock();
count = 1000;
do {
count *= 2;
start = clock();
t->func(count);
stop = clock();
} while ((stop - start) < PRECISION);
printf("%13d/s %s\n",
CLOCKS_PER_SEC*(t->count /(stop - start)),
CLOCKS_PER_SEC*(count /(stop - start)),
t->comment);
}
exit (0);