ootw: intro: this might just work

deater · Mar 2, 2019 · 7acf18c · 7acf18c
1 parent 7587668
commit 7acf18c
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Showing 5 changed files with 53 additions and 3 deletions.
diff --git a/linker_scripts/apple2_9000.inc b/linker_scripts/apple2_9000.inc
@@ -0,0 +1,12 @@
+MEMORY {
+       ZP: start = $00, size = $1A, type = rw;
+       RAM: start = $9000, size = $3000, file = %O;
+}
+
+SEGMENTS {
+CODE: load = RAM, type = ro, align=$100;
+RODATA: load = RAM, type = ro;
+DATA: load = RAM, type = rw;
+BSS: load = RAM, type = bss, define = yes;
+ZEROPAGE: load = ZP, type = zp;
+}
diff --git a/ootw/Makefile b/ootw/Makefile
@@ -91,11 +91,26 @@ intro.o:	intro.s \
 	intro_graphics/09_tunnel/intro_tunnel1.inc \
 	intro_graphics/09_tunnel/intro_tunnel2.inc \
 	intro_graphics/10_gone/intro_zappo.inc \
-	intro_graphics/10_gone/intro_gone.inc
+	intro_graphics/10_gone/intro_gone.inc \
+	intro_data_01.lz4
 	ca65 -o intro.o intro.s -l intro.lst
 
 ####
 
+
+
+intro_data_01.lz4:	intro_data_01
+	lz4 -f -16 intro_data_01
+	truncate -s-8 intro_data_01.lz4
+
+intro_data_01:	intro_data_01.o
+	ld65 -o intro_data_01 intro_data_01.o -C ../linker_scripts/apple2_9000.inc
+
+intro_data_01.o:	intro_data_01.s
+	ca65 -o intro_data_01.o intro_data_01.s -l intro_data_01.lst
+
+####
+
 LOADER:	loader.o
 	ld65 -o LOADER loader.o -C ../linker_scripts/apple2_1400.inc
 

diff --git a/ootw/README b/ootw/README
@@ -65,6 +65,9 @@ Memory squeeze!
 	20000+2000=
 
 
+Let's take a 10k region of memory = $3000
+	$C000 - $3000 = starting at $9000
+
 
 ID1 =	1461		2143\
 ID2 =   1759		2687|

diff --git a/ootw/intro.s b/ootw/intro.s
@@ -32,6 +32,17 @@ intro:
 ;===============================
 ;===============================
 
+	;==================================
+	; Uncompress the data
+	;==================================
+	lda	#<intro1_data_lz4
+	sta	LZ4_SRC
+	lda	#>intro1_data_lz4
+	sta	LZ4_SRC+1
+
+	lda	#$90		; load to $9000
+
+	jsr	lz4_decode
 
 	;==================================
 	; draw the car driving up
@@ -1923,4 +1934,14 @@ plot_particle:
 .endif
 
 
-.include "intro_data.s"
+;.include "intro_data.s"
+
+DATA_LOCATION	=	$9000
+
+; intro1
+building_sequence =	$9840
+
+intro1_data_lz4:
+	.word (intro1_data_lz4_end-intro1_data_lz4)
+	.incbin "intro_data_01.lz4",11
+intro1_data_lz4_end:
diff --git a/ootw/zp.inc b/ootw/zp.inc
@@ -3,7 +3,6 @@
 ;; LZ4 addresses
 
 LZ4_SRC		= $00
-;LZ4_SRC		= $26
 LZ4_DST		= $02
 LZ4_END		= $04
 WHICH_LOAD	= $05