From: bernhardheld <bernhardheld@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Sun, 2 Dec 2001 20:27:50 +0000 (+0000)
Subject: (genFunction): avoid excess "inc sp"
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=0f56d12998f229e0397c9b0198e23a8a00ebc6d1;p=fw%2Fsdcc

(genFunction): avoid excess "inc sp"


git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@1657 4a8a32a2-be11-0410-ad9d-d568d2c75423
---

diff --git a/ChangeLog b/ChangeLog
index 5a546548..d7f3d45a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2001-12-02  Bernhard Held  <bernhard@bernhardheld.de>
+
+	* src/mcs51/gen.c (genFunction): avoid excess "inc sp"
+
 2001-11-25  Michael Hope  <michaelh@juju.net.nz>
 	* support/regression/tests/bug-485362.c: Added.
 
diff --git a/src/mcs51/gen.c b/src/mcs51/gen.c
index 7a2c5f30..d91f0d4c 100644
--- a/src/mcs51/gen.c
+++ b/src/mcs51/gen.c
@@ -2416,6 +2416,18 @@ genFunction (iCode * ic)
 	  emitcode ("add", "a,#0x%02x", ((char) sym->stack & 0xff));
 	  emitcode ("mov", "sp,a");
 
+	}
+      else if (i > 5)
+	{
+
+	  /* ISRs will be handled by the code above, because they
+	     can't have parameters. Therefore it's save to use r0 */
+	  emitcode ("mov", "r0,a");
+	  emitcode ("mov", "a,sp");
+	  emitcode ("add", "a,#0x%02x", ((char) sym->stack & 0xff));
+	  emitcode ("mov", "sp,a");
+	  emitcode ("mov", "a,r0");
+
 	}
       else
 	while (i--)