fixed sign extension bug

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@280 4a8a32a2-be11-0410-ad9d-d568d2c75423

diff --git a/src/mcs51/gen.c b/src/mcs51/gen.c
index 602ffba0590ac43bb93e5223d12f3a00f5b36e63..d26aa0c832776a3b264e5fea5372bb00188dfb2d 100644 (file)
--- a/src/mcs51/gen.c
+++ b/src/mcs51/gen.c
@@ -7153,6 +7153,7 @@ static void genCast (iCode *ic)
 {
     operand *result = IC_RESULT(ic);
     link *ctype = operandType(IC_LEFT(ic));
+    link *rtype = operandType(IC_RIGHT(ic));
     operand *right = IC_RIGHT(ic);
     int size, offset ;
 
@@ -7225,20 +7226,6 @@ static void genCast (iCode *ic)
            else {
                /* we have to go by the storage class */
                p_type = PTR_TYPE(SPEC_OCLS(etype));
-
-/*             if (SPEC_OCLS(etype)->codesp )  */
-/*                 p_type = CPOINTER ;  */
-/*             else */
-/*                 if (SPEC_OCLS(etype)->fmap && !SPEC_OCLS(etype)->paged) */
-/*                     p_type = FPOINTER ; */
-/*                 else */
-/*                     if (SPEC_OCLS(etype)->fmap && SPEC_OCLS(etype)->paged) */
-/*                         p_type = PPOINTER; */
-/*                     else */
-/*                         if (SPEC_OCLS(etype) == idata ) */
-/*                             p_type = IPOINTER ; */
-/*                         else */
-/*                             p_type = POINTER ; */
            }
                
            /* the first two bytes are known */
@@ -7300,10 +7287,10 @@ static void genCast (iCode *ic)
         offset++;
     }
 
-    /* now depending on the sign of the destination */
+    /* now depending on the sign of the source && destination */
     size = AOP_SIZE(result) - AOP_SIZE(right);
     /* if unsigned or not an integral type */
-    if (SPEC_USIGN(ctype) || !IS_SPEC(ctype)) {
+    if (SPEC_USIGN(rtype) || !IS_SPEC(rtype)) {
         while (size--)
             aopPut(AOP(result),zero,offset++);
     } else {