From: Sam Leffler <sam@ucbvax.Berkeley.EDU>
Date: Sun, 27 Jul 1986 15:25:07 +0000 (-0800)
Subject: 1.21 release; handle unsigned arithmetic with char and short
X-Git-Tag: BSD-4_3-Snapshot-Development~803
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/73fe5b3fffa9a13d4e185cd626eecf845c098b7d

1.21 release; handle unsigned arithmetic with char and short

SCCS-vsn: old/pcc/ccom.tahoe/local2.c 1.7
---

diff --git a/usr/src/old/pcc/ccom.tahoe/local2.c b/usr/src/old/pcc/ccom.tahoe/local2.c
index 8abc83d0c1..f3bd37ccba 100644
--- a/usr/src/old/pcc/ccom.tahoe/local2.c
+++ b/usr/src/old/pcc/ccom.tahoe/local2.c
@@ -1,11 +1,12 @@
 #ifndef lint
-static char sccsid[] = "@(#)local2.c	1.6 (Berkeley) %G%";
+static char sccsid[] = "@(#)local2.c	1.7 (Berkeley) %G%";
 #endif
 
 # include "pass2.h"
 # include <ctype.h>
 
 # define putstr(s)	fputs((s), stdout)
+# define ISCHAR(p)	(p->in.type == UCHAR || p->in.type == CHAR)
 
 # ifdef FORT
 int ftlab1, ftlab2;
@@ -384,6 +385,29 @@ zzzcode( p, c ) register NODE *p; {
 		stasg(p);
 		break;
 
+	case 'X':	/* multiplication for short and char */
+		if (ISUNSIGNED(p->in.left->in.type)) 
+			printf("\tmovz");
+		else
+			printf("\tcvt");
+		zzzcode(p, 'L');
+		printf("l\t");
+		adrput(p->in.left);
+		printf(",");
+		adrput(&resc[0]);
+		printf("\n");
+		if (ISUNSIGNED(p->in.right->in.type)) 
+			printf("\tmovz");
+		else
+			printf("\tcvt");
+		zzzcode(p, 'R');
+		printf("l\t");
+		adrput(p->in.right);
+		printf(",");
+		adrput(&resc[1]);
+		printf("\n");
+		return;
+
 	default:
 		cerror( "illegal zzzcode" );
 		}
@@ -996,7 +1020,9 @@ hardops(p)  register NODE *p; {
 	t = p->in.type;
 	t1 = p->in.left->in.type;
 	t2 = p->in.right->in.type;
-	if ( t1 != UNSIGNED && (t2 != UNSIGNED)) return;
+
+	if (!((ISUNSIGNED(t1) && !(ISUNSIGNED(t2))) || 
+	     ( t2 == UNSIGNED))) return;
 
 	/* need to rewrite tree for ASG OP */
 	/* must change ASG OP to a simple OP */