From: frief <frief@4a8a32a2-be11-0410-ad9d-d568d2c75423>
Date: Mon, 23 Oct 2006 09:25:54 +0000 (+0000)
Subject: * support/regression/ports/mcs51/support.c: smaller _sdcc_external_startup()
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=d375c75e9c3918dff0a907ce248ed7ac7e67283d;p=fw%2Fsdcc

* support/regression/ports/mcs51/support.c: smaller _sdcc_external_startup()
* device/lib/mcs51/crtxclear.asm: don't check high byte of l_PSEG

git-svn-id: https://sdcc.svn.sourceforge.net/svnroot/sdcc/trunk/sdcc@4429 4a8a32a2-be11-0410-ad9d-d568d2c75423
---

diff --git a/ChangeLog b/ChangeLog
index e8e99404..9bd11721 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2006-10-23 Frieder Ferlemann <Frieder.Ferlemann AT web.de>
+
+	* support/regression/ports/mcs51/support.c: smaller 
+	_sdcc_external_startup()
+	* device/lib/mcs51/crtxclear.asm: don't check high byte of l_PSEG
+
 2006-10-20 Maarten Brock <sourceforge.brock AT dse.nl>
 
 	* device/lib/gbz80/crt0.s,
diff --git a/device/lib/mcs51/crtxclear.asm b/device/lib/mcs51/crtxclear.asm
index f7db6a88..5b7357ff 100644
--- a/device/lib/mcs51/crtxclear.asm
+++ b/device/lib/mcs51/crtxclear.asm
@@ -36,7 +36,6 @@
 __mcs51_genXRAMCLEAR::
 	mov	r0,#l_PSEG
 	mov	a,r0
-	orl	a,#(l_PSEG >> 8)
 	jz	00005$
 	mov	r1,#s_PSEG
 	mov	__XPAGE,#(s_PSEG >> 8)
diff --git a/support/regression/ports/mcs51/support.c b/support/regression/ports/mcs51/support.c
index 11494da9..9edef199 100644
--- a/support/regression/ports/mcs51/support.c
+++ b/support/regression/ports/mcs51/support.c
@@ -4,17 +4,9 @@
 unsigned char
 _sdcc_external_startup (void)
 {
-  /* copied from device/examples/mcs51/simple2/hi.c */
-  PCON = 0x80;  /* power control byte, set SMOD bit for serial port */
-  SCON = 0x00;  /* serial control byte, mode 0, RI _NOT_ active */
-  TMOD = 0x21;  /* timer control mode, byte operation */
-  TCON = 0;     /* timer control register, byte operation */
-
-  TH1  = 0xFF;  /* serial reload value, 57,600 baud at 11.0592 MHz */
-  TL1  = 0xFF;  /* reload asap */
-  TR1  = 1;     /* start serial timer */
-
-  TI   = 1;     /* enable transmission of first byte */
+  /* serial port mode 0 is default */
+  /* enable transmission of first byte */
+  TI = 1;
   return 0;
 }