shithub: bench9

Download patch

ref: 6ae1a31f6bf06c488ff6d1bdf7af04e961c76225
parent: 42e3ee2d9508932863c789041c71b7ae6c813f49
author: Sigrid Solveig Haflínudóttir <ftrvxmtrx@gmail.com>
date: Fri Feb 26 03:00:31 EST 2021 

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
+
+