* src/hc08/gen.c (genPointerGetSetOfs): correctly handle 1 byte array

offsets (fixes bug #923936)

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3279 4a8a32a2-be11-0410-ad9d-d568d2c75423

diff --git a/ChangeLog b/ChangeLog
index cac9f928b8a25f6e8b89d03e06b2bea40ca0b8aa..54f042f891ff78c8d34ab2d51f1e2c38f7a49335 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2004-03-28 Erik Petrich <epetrich AT ivorytower.norman.ok.us>
+
+       * src/hc08/gen.c (genPointerGetSetOfs): correctly handle 1 byte array
+       offsets (fixes bug #923936)
+
 2004-03-26 Bernhard Held <bernhard AT bernhardheld.de>
 
        * device/lib/small/Makefile: fixed parallel execution by

diff --git a/src/hc08/gen.c b/src/hc08/gen.c
index b515ed79b6d035f4dbf165c3e058aa478265407f..c02688b51c81908a554bf101150ee77ffaeb10fd 100644 (file)
--- a/src/hc08/gen.c
+++ b/src/hc08/gen.c
@@ -4239,6 +4239,7 @@ genPointerGetSetOfs (iCode *ic)
   if (!sym->remat)
     return FALSE;
     
+  
   if (pget)
     {
       D(emitcode (";     genPointerGetOfs",""));
@@ -4248,9 +4249,27 @@ genPointerGetSetOfs (iCode *ic)
       
       aopOp (IC_RIGHT(ic), ic, FALSE);
       aopOp (IC_RESULT(lic), lic, FALSE);
-      
 
-      loadRegFromAop (hc08_reg_hx, AOP (IC_RIGHT (ic)), 0);
+      if (AOP_SIZE (IC_RIGHT (ic)) == 1)
+        {
+          if (SPEC_USIGN (getSpec (operandType (IC_RIGHT (ic)))))
+            {
+              loadRegFromAop (hc08_reg_x, AOP (IC_RIGHT (ic)), 0);
+              loadRegFromConst (hc08_reg_h, zero);
+            }
+          else
+            {
+              loadRegFromAop (hc08_reg_a, AOP (IC_RIGHT (ic)), 0);
+              transferRegReg (hc08_reg_a, hc08_reg_x, FALSE);
+              emitcode ("rola","");
+              emitcode ("clra","");
+              emitcode ("sbc", "#0");
+              hc08_useReg (hc08_reg_a);
+              transferRegReg (hc08_reg_a, hc08_reg_h, FALSE);
+           }
+        }
+      else
+        loadRegFromAop (hc08_reg_hx, AOP (IC_RIGHT (ic)), 0);
       size = AOP_SIZE (IC_RESULT(lic));
       derefaop->size = size;
       offset=0;
@@ -4284,8 +4303,26 @@ genPointerGetSetOfs (iCode *ic)
       aopOp (IC_RIGHT(ic), ic, FALSE);
       aopOp (IC_RIGHT(lic), lic, FALSE);
       
-
-      loadRegFromAop (hc08_reg_hx, AOP (IC_RIGHT (ic)), 0);
+      if (AOP_SIZE (IC_RIGHT (ic)) == 1)
+        {
+          if (SPEC_USIGN (getSpec (operandType (IC_RIGHT (ic)))))
+            {
+              loadRegFromAop (hc08_reg_x, AOP (IC_RIGHT (ic)), 0);
+              loadRegFromConst (hc08_reg_h, zero);
+            }
+          else
+            {
+              loadRegFromAop (hc08_reg_a, AOP (IC_RIGHT (ic)), 0);
+              transferRegReg (hc08_reg_a, hc08_reg_x, FALSE);
+              emitcode ("rola","");
+              emitcode ("clra","");
+              emitcode ("sbc", "#0");
+              hc08_useReg (hc08_reg_a);
+              transferRegReg (hc08_reg_a, hc08_reg_h, FALSE);
+           }
+        }
+      else
+        loadRegFromAop (hc08_reg_hx, AOP (IC_RIGHT (ic)), 0);
       size = AOP_SIZE (IC_RIGHT(lic));
       derefaop->size = size;
       offset=0;