From 029963cc94fbb47560118b5de73c537e2c14ed7c Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Wed, 25 Mar 2009 00:50:02 -0700
Subject: [PATCH] Eliminate array walking

---
 target/serial/serial.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/target/serial/serial.c b/target/serial/serial.c
index 1c352831..ebe7e2fc 100644
--- a/target/serial/serial.c
+++ b/target/serial/serial.c
@@ -207,7 +207,7 @@ usart_init(void)
 		 UxUCR_D9_ODD_PARITY |
 		 UxUCR_BIT9_8_BITS |
 		 UxUCR_PARITY_DISABLE |
-		 UxUCR_SPB_1_STOP_BIT |
+		 UxUCR_SPB_2_STOP_BITS |
 		 UxUCR_STOP_HIGH |
 		 UxUCR_START_LOW);
 }
@@ -219,7 +219,15 @@ usart_out_byte(uint8_t byte)
 	while (!UTX1IF)
 		;
 	UTX1IF = 0;
-	delay(1);
+}
+
+void
+usart_out_string(uint8_t *string)
+{
+	uint8_t	b;
+
+	while (b = *string++)
+		usart_out_byte(b);
 }
 
 uint8_t
@@ -233,12 +241,8 @@ usart_in_byte(void)
 	return b;
 }
 
-static char string[] = "hello world\r\n";
-
 main ()
 {
-	uint8_t i;
-
 	P1DIR |= 2;
 	CLKCON = 0;
 	while (!(SLEEP & SLEEP_XOSC_STB))
@@ -247,8 +251,7 @@ main ()
 	usart_init();
 
 	for (;;) {
-		for (i = 0; i < sizeof(string) - 1; i++)
-			usart_out_byte(string[i]);
+		usart_out_string("hello world\r\n");
 		delay(5);
 		P1 ^= 2;
 	}
-- 
2.30.2