From cc0a348394f70ed485db2615b5f2bed4509efd05 Mon Sep 17 00:00:00 2001
From: Vince Weaver <vincent.weaver@maine.edu>
Date: Tue, 11 Jun 2024 12:56:11 -0400
Subject: [PATCH] fish: add flashing text for spacebar message

---
 games/sb/fish/fish.s       | 13 +++++++++----
 games/sb/fish/text_print.s | 19 +++++++++++++++----
 2 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/games/sb/fish/fish.s b/games/sb/fish/fish.s
index 725ae237..08e66627 100644
--- a/games/sb/fish/fish.s
+++ b/games/sb/fish/fish.s
@@ -18,9 +18,11 @@
 
 
 ; NOTES
-;	page1= $2000-$5fff
-;	code = $6000-$bfff
-
+;	hgr page1= $2000-$3fff
+;	hgr page2= $4000-$5fff
+;	code     = $4000-$bfff
+;		note we have to be done with the code in page2 before
+;		we over-write it by playing the game
 
 div7_table     = $400
 mod7_table     = $500
@@ -130,12 +132,15 @@ wait_at_tile:
 
 	jsr	set_normal		; normal text
 
-	ldx	#9
+	ldx	#7
 print_help:
 	jsr	move_and_print
 	dex
 	bne	print_help
 
+	jsr	set_flash		; have the "press spacebar" flash
+	jsr	move_and_print
+
 wait_at_directions:
 	lda	KEYPRESS
 	bpl	wait_at_directions
diff --git a/games/sb/fish/text_print.s b/games/sb/fish/text_print.s
index 34bae3db..95f0cff4 100644
--- a/games/sb/fish/text_print.s
+++ b/games/sb/fish/text_print.s
@@ -60,25 +60,36 @@ done_print_string:
 
 	rts
 
-	; set normal text
+	; set normal text ($80-$ff)
 set_normal:
 	lda	#$80
 	sta	ps_smc1+1
 
-	lda	#09             ; ora
+	lda	#$09		; ora
 	sta	ps_smc1
 
 	rts
 
-	; restore inverse text
+	; restore inverse text ($00-$3f)
 set_inverse:
-	lda	#$29
+	lda	#$29		; and
 	sta	ps_smc1
 	lda	#$3f
 	sta	ps_smc1+1
 
 	rts
 
+	; set flashing text ($40-$7f)
+set_flash:
+	lda	#$40
+	sta	ps_smc1+1
+
+	lda	#$09		; ora
+	sta	ps_smc1
+
+	rts
+
+
 
 	;================================
 	; move and print a list of lines