From: Ken Thompson <ken@golang.org>
Date: Wed, 29 Oct 2008 23:38:23 +0000 (-0700)
Subject: bug 113
X-Git-Tag: weekly.2009-11-06~2858
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=4fdf3d6247b2c1ebab132f6df8e84bdcac422255;p=gostls13.git

bug 113

R=r
OCL=18077
CL=18077
---

diff --git a/src/cmd/gc/mparith2.c b/src/cmd/gc/mparith2.c
index d50aad7b2a..591501140e 100644
--- a/src/cmd/gc/mparith2.c
+++ b/src/cmd/gc/mparith2.c
@@ -149,12 +149,13 @@ mpneg(Mpint *a)
 	a1 = &a->a[0];
 	c = 0;
 	for(i=0; i<Mpprec; i++) {
-		x = c - *a1;
-		*a1++ = x;
-
+		x = -*a1 -c;
 		c = 0;
-		if(x < 0)
+		if(x < 0) {
+			x += Mpbase;
 			c = 1;
+		}
+		*a1++ = x;
 	}
 }
 
@@ -295,8 +296,8 @@ mporfixfix(Mpint *a, Mpint *b)
 	a1 = &a->a[0];
 	b1 = &b->a[0];
 	for(i=0; i<Mpprec; i++) {
-		x = *a1;
-		*a1++ = x | *b1++;
+		x = *a1 | *b1++;
+		*a1++ = x;
 	}
 
 	if(b->neg)
@@ -329,8 +330,8 @@ mpandfixfix(Mpint *a, Mpint *b)
 	a1 = &a->a[0];
 	b1 = &b->a[0];
 	for(i=0; i<Mpprec; i++) {
-		x = *a1;
-		*a1++ = x & *b1++;
+		x = *a1 & *b1++;
+		*a1++ = x;
 	}
 
 	if(b->neg)
@@ -363,8 +364,8 @@ mpxorfixfix(Mpint *a, Mpint *b)
 	a1 = &a->a[0];
 	b1 = &b->a[0];
 	for(i=0; i<Mpprec; i++) {
-		x = *a1;
-		*a1++ = x ^ *b1++;
+		x = *a1 ^ *b1++;
+		*a1++ = x;
 	}
 
 	if(b->neg)