From: Bernard Blackham <dagobah@ucc.asn.au>
Date: Wed, 6 Aug 2003 16:16:00 +0000 (+0000)
Subject: Allow changes to individual characters
X-Git-Tag: ROMW~100
X-Git-Url: https://git.ucc.asn.au/?p=uccvend-snackrom.git;a=commitdiff_plain;h=067df52c32420b3165f2df104383da98d5b52626

Allow changes to individual characters
---

diff --git a/ROM2/display.c b/ROM2/display.c
index 85582f3..af96921 100644
--- a/ROM2/display.c
+++ b/ROM2/display.c
@@ -21,7 +21,7 @@ void display_send_byte(char c);
 void display_reset();
 void display_update();
 
-void set_msg(char* newmsg) {
+void set_msg(char* newmsg, u8 wrap) {
 	char* dest = current_message;
 	/* equivalent of a string copy */
 	/* while (dest++ = newmsg++); */
@@ -30,13 +30,15 @@ void set_msg(char* newmsg) {
 		dest++;
 		newmsg++;
 	}
+	wrap_mode = wrap;
 	scroll_point = 0;
 	display_update();
 }
 
-extern inline void set_wrap_mode(u8 new_wrap_mode) {
-	/* in theory it should be inlined anyway? */
-	wrap_mode = new_wrap_mode;
+void set_char(char c, u8 pos) {
+	/* sets a single character */
+	display_buffer[pos] = c;
+	display_update();
 }
 
 void display_send_byte(char c) {
@@ -64,7 +66,7 @@ void display_reset() {
 }
 
 void display_update() {
-	int i;
+	u8 i;
 	display_reset();
 	
 	for (i=0; i < 10; i++) {
diff --git a/ROM2/display.h b/ROM2/display.h
index c9af212..384ef8d 100644
--- a/ROM2/display.h
+++ b/ROM2/display.h
@@ -4,14 +4,16 @@
 #include "types.h"
 
 /* scrolling modes */
-#define WRAP_SCROLL_L  1  /* scroll to the left     */
-#define WRAP_SCROLL_R  2  /* scroll to the right    */
+#define WRAP_NONE      0  /* trailing chars get left off */
+#define WRAP_SCROLL_L  1  /* scroll to the left */
+#define WRAP_SCROLL_R  2  /* scroll to the right */
 #define WRAP_ALTERNATE 3  /* alternate between text */
 
 extern char current_message[256];
 
 void display_init();
-void set_msg(char* newmsg);
+void set_msg(char* newmsg, u8 wrap);
+void set_char(char c, u8 pos);
 void set_wrap_mode(u8 new_wrap_mode);
 void display_refresh();