--- a/mc-nop-386.c	Mon Jan 17 00:43:06 2000 +0900
+++ b/mc-nop-386.c	Mon Jan 17 01:20:59 2000 +0900
@@ -757,37 +757,40 @@
 	break;
     default:
 	if (length <=MAX_COPY_LEN) {
-	    for(;length>4;length-=4,offset+=4);
+	    for(;length>=4;length-=4,offset+=4)
 		emit_copy(from,to,4,offset);
-	    for(;length>2;length-=2,offset+=2);
+	    for(;length>=2;length-=2,offset+=2)
 		emit_copy(from,to,2,offset);
 	    if(length>0)
 		emit_copy(from,to,length,offset);
 	    return;
 	}
-	printf("\texch %%edi,%s\n",from);
-	printf("\texch %%esi,%s\n",to);
-	printf("\texch %%ecx,%s\n",drn);
-	printf("\tmovl $%d,%%ecx\n",length);
+	printf("\txchg %%edi,%s\n",from);
+	printf("\txchg %%esi,%s\n",to);
+	printf("\txchg %%ecx,%s\n",drn);
+	printf("\tmovl $%d,%%ecx\n",length/4);
 	printf("\tcld\n\trep\n\tmovsl\n");
-	printf("\texch %%ecx,%s\n",drn);
-	printf("\texch %%esi,%s\n",to);
-	printf("\texch %%edi,%s\n",from);
+	printf("\txchg %%ecx,%s\n",drn);
+	printf("\txchg %%esi,%s\n",to);
+	printf("\txchg %%edi,%s\n",from);
+	if(length%4) {
+	    emit_copy("%esi","%edi",length,offset+length/4);
+	}
     }
 }
 
 int
 struct_push(int e4,int t) 
 {
-    int e5;
+    int length;
     g_expr(e4);
-    e5=size(t); 
-    if(e5%size_of_int) {
-	e5 += size_of_int - (e5%size_of_int);
+    length=size(t); 
+    if(length%size_of_int) {
+	length += size_of_int - (length%size_of_int);
     }
-    printf("\tsubl $%d,%%esp\n",e5);
-    if (e5<=MAX_COPY_LEN)
-	emit_copy(crn,"%esp",e5,0);
+    printf("\tsubl $%d,%%esp\n",length);
+    if (length<=MAX_COPY_LEN)
+	emit_copy(crn,"%esp",length,0);
     else {
 	printf("\tpushl %%edi\n");
 	printf("\tpushl %%esi\n");
@@ -795,13 +798,13 @@
 	printf("\tleal 12(%%esp),%%di\n");
 	if (rname[creg]!=REG_ESI)
 		printf("\tmovl %s,%%esi\n",crn);
-	printf("\tmovl $%d,%%ecx\n",e5);
+	printf("\tmovl $%d,%%ecx\n",length/size_of_int);
 	printf("\tcld\n\trep\n\tmovsl\n");
 	printf("\tpopl %%ecx\n");
 	printf("\tpopl %%esi\n");
 	printf("\tpopl %%edi\n");
     }
-    return e5/size_of_int;
+    return length/size_of_int;
 }
 
 void
@@ -1032,7 +1035,7 @@
     e2 = cadr(e1);
     e3 = cadr(e2);
     e4 = caddr(e1);
-    sz = size(cadr(e2));  /* cld rep movsb */
+    sz = cadddr(e1);  /* cld rep movsb */
     g_expr(e4);
     emit_push();
     g_expr(e2);