shithub: bench9

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add 386 support (thanks foura and Amavect)

--- a/b.c

+++ b/b.c

@@ -41,7 +41,7 @@

 	b = va_arg(f->args, B*);

-	return fmtprint(f, "%zd", OneS/(b->tot.ns/b->ic));

+	return fmtprint(f, "%ulld", OneS/(b->tot.ns/b->ic));

 }

 static int

@@ -51,7 +51,7 @@

 	c = va_arg(f->args, Cns);

-	return fmtprint(f,	"%zd", c.ns);

+	return fmtprint(f,	"%ulld", c.ns);

 }

 B *

@@ -158,10 +158,14 @@

 		m = b->c[b->ic/2];

 	else

 		m = (b->c[b->ic/2-1] + b->c[b->ic/2])/2;

-	b->med.ns = cycles2ns(b->med.c = m);

-	b->avg.ns = cycles2ns(b->avg.c = b->tot.c / b->step);

-	b->min.ns = cycles2ns(b->min.c = b->c[0]);

-	b->max.ns = cycles2ns(b->max.c = b->c[b->ic-1]);

+	b->med.c = m;

+	b->med.ns = cycles2ns(b->med.c);

+	b->avg.c = b->tot.c / b->step;

+	b->avg.ns = cycles2ns(b->avg.c);

+	b->min.c = b->c[0];

+	b->min.ns = cycles2ns(b->min.c);

+	b->max.c = b->c[b->ic-1];

+	b->max.ns = cycles2ns(b->max.c);

 	for(i = 1; i < 100; i++){

 		n = MAX(0, b->ic*i/100 - 1);

 		b->p[i].ns = cycles2ns(b->c[n]);

@@ -182,7 +186,7 @@

 	b->n--;

 	if(b->tout <= b->tin)

-		sysfatal("%zd ≤ %zd → t₁ ≤ t₀", b->tout, b->tin);

+		sysfatal("%ulld ≤ %ulld → t₁ ≤ t₀", b->tout, b->tin);

 	if(b->tout - b->tin < adj) /* sometimes this happens */

 		adj = b->tout - b->tin;

 	c = b->tout - b->tin - adj;

--- /dev/null

+++ b/b_386.s

@@ -1,0 +1,39 @@

+#define RDTSCP WORD $0x010F; BYTE $0xF9

+#define RDTSC  WORD $0x310F

+

+TEXT tstart(SB), 1, $0

+	CPUID

+	RDTSC

+	MOVL c+0(FP), CX

+	MOVL AX, 0(CX)

+	MOVL DX, 4(CX)

+	RET

+

+TEXT _tend(SB), 1, $0

+	RDTSC

+	MOVL c+0(FP), CX

+	MOVL AX, 0(CX)

+	MOVL DX, 4(CX)

+	CPUID

+	RET

+

+TEXT _tendp(SB), 1, $0

+	RDTSCP

+	MOVL c+0(FP), CX

+	MOVL AX, 0(CX)

+	MOVL DX, 4(CX)

+	CPUID

+	RET

+

+TEXT cpuid(SB), 1, $0

+	MOVL rep+0(FP), BP

+	MOVL ax+4(FP), AX

+	MOVL cx+8(FP), CX

+	CPUID

+	MOVL AX, 0(BP)

+	MOVL BX, 4(BP)

+	MOVL CX, 8(BP)

+	MOVL DX, 12(BP)

+	RET

+

+