From c7213e51f3526a7559d03919d64907ccc0b25aa7 Mon Sep 17 00:00:00 2001
From: johanknol <johanknol@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Tue, 21 Aug 2001 11:58:34 +0000
Subject: [PATCH] fixed bug #451453

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@1159 4a8a32a2-be11-0410-ad9d-d568d2c75423
---
 src/SDCC.lex    |  2 +-
 src/ds390/gen.c | 13 +++++++++----
 src/mcs51/gen.c | 13 +++++++++----
 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/src/SDCC.lex b/src/SDCC.lex
index 425508ad..cc81d1ec 100644
--- a/src/SDCC.lex
+++ b/src/SDCC.lex
@@ -547,7 +547,7 @@ int process_pragma(char *s)
     }
 
     if (strncmp(cp,PRAGMA_NOLOOPREV,strlen(PRAGMA_NOLOOPREV)) == 0) {
-	doPragma(P_EXCLUDE,NULL);
+	doPragma(P_LOOPREV,NULL);
 	return 0;
     }
 
diff --git a/src/ds390/gen.c b/src/ds390/gen.c
index a9cf9567..21315fde 100644
--- a/src/ds390/gen.c
+++ b/src/ds390/gen.c
@@ -3841,12 +3841,17 @@ genMinus (iCode * ic)
       else
 	{
 	  /* first add without previous c */
-	  if (!offset)
-	    emitcode ("add", "a,#0x%02x",
-		      (unsigned int) (lit & 0x0FFL));
-	  else
+	  if (!offset) {
+	    if (!size && lit==-1) {
+	      emitcode ("dec", "a");
+	    } else {
+	      emitcode ("add", "a,#0x%02x",
+			(unsigned int) (lit & 0x0FFL));
+	    }
+	  } else {
 	    emitcode ("addc", "a,#0x%02x",
 		      (unsigned int) ((lit >> (offset * 8)) & 0x0FFL));
+	  }
 	}
 
       if (pushResult)
diff --git a/src/mcs51/gen.c b/src/mcs51/gen.c
index ccaacd08..408e9116 100644
--- a/src/mcs51/gen.c
+++ b/src/mcs51/gen.c
@@ -3251,12 +3251,17 @@ genMinus (iCode * ic)
       else
 	{
 	  /* first add without previous c */
-	  if (!offset)
-	    emitcode ("add", "a,#0x%02x",
-		      (unsigned int) (lit & 0x0FFL));
-	  else
+	  if (!offset) {
+	    if (!size && lit==-1) {
+	      emitcode ("dec", "a");
+	    } else {
+	      emitcode ("add", "a,#0x%02x", 
+			(unsigned int) (lit & 0x0FFL));
+	    }
+	  } else {
 	    emitcode ("addc", "a,#0x%02x",
 		      (unsigned int) ((lit >> (offset * 8)) & 0x0FFL));
+	  }
 	}
       aopPut (AOP (IC_RESULT (ic)), "a", offset++);
     }
-- 
2.39.5