keen: update story generation

games/keen/story.s

@@ -9,6 +9,8 @@
 
 story_data	=	$7000
 
+story_end	=	$83A0
+
 keen_story_start:
 	;===================
 	; init screen
@@ -303,11 +305,11 @@ up_done:
 do_down:
 
 	lda	START_LINE_H						; 3
-	cmp	#$82							; 2
+	cmp	#>story_end						; 2
 	bne	down_ok							; 2/3
 
 	lda	START_LINE_L						; 3
-	cmp	#$48							; 2
+	cmp	#<story_end						; 2
 	beq	done_key						; 2/3
 
 down_ok:

games/keen/story/make_story.c

@@ -1,6 +1,10 @@
 #include <stdio.h>
 #include <string.h>
 
+/* If doing cycle-counted code we don't want to cross pages */
+/* in that case, skip bytes from 240-256 */
+static int dont_page_cross=1;
+
 int main(int argc, char **argv) {
 
 	char string[BUFSIZ];
@@ -8,6 +12,7 @@ int main(int argc, char **argv) {
 
 	int inverse=0;
 	int count,i,length;
+	int offset=0;
 
 	while(1) {
 
@@ -26,9 +31,11 @@ int main(int argc, char **argv) {
 
 		if (inverse) {
 			putchar(' '&0x3f);
+			offset++;
 		}
 		else {
 			putchar(' '|0x80);
+			offset++;
 		}
 
 		for(i=0;i<length;i++) {
@@ -37,21 +44,40 @@ int main(int argc, char **argv) {
 
 			if (inverse) {
 				putchar(string[i]&0x3f);
+				offset++;
 			}
 			else {
 				putchar(string[i]|0x80);
+				offset++;
 			}
 		}
 		for(i=0;i<(40-length);i++) {
 			if (inverse) {
 				putchar(' '&0x3f);
+				offset++;
 			}
 			else {
 				putchar(' '|0x80);
+				offset++;
 			}
 
 
 		}
+
+		if ((dont_page_cross) && ((offset%256)==240)) {
+			for(i=0;i<16;i++) {
+				if (inverse) {
+					putchar(' '&0x3f);
+					offset++;
+				}
+				else {
+					putchar(' '|0x80);
+					offset++;
+				}
+			}
+
+		}
+
 	}
 
 	return 0;