From 622a9887cf6cea26006b5d4047dad450c01faf5a Mon Sep 17 00:00:00 2001
From: epetrich <epetrich@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Fri, 22 Jul 2005 22:12:41 +0000
Subject: [PATCH] * src/hc08/gen.c (genMinus): fixed bug #1241835,  
 (genModOneByte): removed needless psha/pula

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@3809 4a8a32a2-be11-0410-ad9d-d568d2c75423
---
 ChangeLog      |  5 +++++
 src/hc08/gen.c | 22 +++++++++++++++-------
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 2ff56581..8f6fbbe9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2005-07-22 Erik Petrich <epetrich AT ivorytower.norman.ok.us>
+
+	* src/hc08/gen.c (genMinus): fixed bug #1241835,
+	  (genModOneByte): removed needless psha/pula
+
 2005-07-22 Raphael Neider <rneider AT web.de>
 
 	* src/SDCCmain.c (linkEdit): initialized linkerScriptFileName,
diff --git a/src/hc08/gen.c b/src/hc08/gen.c
index f0e9853e..aab19dea 100644
--- a/src/hc08/gen.c
+++ b/src/hc08/gen.c
@@ -3440,13 +3440,22 @@ genMinus (iCode * ic)
 
   leftOp = AOP(IC_LEFT(ic));
   rightOp = AOP(IC_RIGHT(ic));
-
   sub = "sub";
   offset = 0;
+
+  if (IS_AOP_A (rightOp))
+    {
+      loadRegFromAop ( hc08_reg_a, rightOp, offset);
+      accopWithAop (sub, leftOp, offset);
+      accopWithMisc ("nega", "");
+      storeRegToAop (hc08_reg_a, AOP (IC_RESULT (ic)), offset++);
+      goto release;
+    }
+
   while (size--)
     {
       loadRegFromAop ( hc08_reg_a, leftOp, offset);
-      accopWithAop(sub, rightOp, offset);
+      accopWithAop (sub, rightOp, offset);
       storeRegToAop (hc08_reg_a, AOP (IC_RESULT (ic)), offset++);
       sub = "sbc";
     }
@@ -3913,11 +3922,10 @@ genModOneByte (operand * left,
       loadRegFromAop (hc08_reg_h, AOP (left), 1);
       loadRegFromAop (hc08_reg_a, AOP (left), 0);
       emitcode ("div", "");
-      hc08_dirtyReg (hc08_reg_a, FALSE);
-      hc08_dirtyReg (hc08_reg_h, FALSE);
-      storeRegToFullAop (hc08_reg_h, AOP (result), FALSE);
       hc08_freeReg (hc08_reg_a);
       hc08_freeReg (hc08_reg_x);
+      hc08_dirtyReg (hc08_reg_h, FALSE);
+      storeRegToFullAop (hc08_reg_h, AOP (result), FALSE);
       hc08_freeReg (hc08_reg_h);
       return;
     }
@@ -3987,8 +3995,8 @@ genModOneByte (operand * left,
   
   loadRegFromConst (hc08_reg_h, zero);
   emitcode ("div", "");
-  hc08_dirtyReg (hc08_reg_x, FALSE);
-  hc08_dirtyReg (hc08_reg_a, FALSE);
+  hc08_freeReg (hc08_reg_a);
+  hc08_freeReg (hc08_reg_x);
   hc08_dirtyReg (hc08_reg_h, FALSE);
 
   if (runtimeSign || compiletimeSign)
-- 
2.30.2