Improvements to bank loader

Makefile

@@ -21,9 +21,9 @@ all: loader $(PGM)
 
 
 $(PGM):
-	@PATH=$(PATH):/usr/local/bin; $(CL65) -t apple2enh --cpu 65816 --start-addr $(ADDR) -l$(PGM).lst $(PGM).s
+	@PATH=$(PATH):/usr/local/bin; $(CL65) -t apple2enh --cpu 65816 --start-addr 0000 -l$(PGM).lst $(PGM).s
 	java -jar $(AC) -d $(PGM).2mg CODEBANK
-	java -jar $(AC) -p $(PGM).2mg CODEBANK BIN 0x$(ADDR) < $(PGM)
+	java -jar $(AC) -p $(PGM).2mg CODEBANK BIN 0x0000 < $(PGM)
 	java -jar $(AC) -d $(PGM).2mg SPRITEBANK00
 	java -jar $(AC) -p $(PGM).2mg SPRITEBANK00 BIN 0x0000 < Art/spritebank00.bin
 	rm -f $(PGM)

gscats.s

@@ -8,7 +8,7 @@
 .include "macros.s"
 .include "equates.s"
 
-.org $800
+.org $0000
 
 
 mainBank2:

loader.s

@@ -11,7 +11,7 @@
 
 LOADBUFFER = $1000		; Clear of this loader code
 BUFFERSIZE = $8200		; About max size we can fit between buffer and this loader code
-MAINENTRY = $020800
+MAINENTRY = $020000
 
 .org $800
 
@@ -27,29 +27,46 @@ main:
 	; Load the code into bank 0
 	jsr PRODOS
 	.byte $ca
-	.addr fileReadCode
+	.addr fileRead
 	bne ioError
 
 	; Close the file
 	jsr PRODOS
 	.byte $cc
-	.addr fileCloseCode
+	.addr fileClose
 
 	NATIVE
 
 	; Copy code into bank 2
-mainCopyStart:
-	ldx #0
+	ldx fileReadLen
+	lda #2
+	jsr copyBytes
 
-mainCopyLoop:
-	lda LOADBUFFER,x
+	EMULATION
 
-mainCopyDest:
-	sta MAINENTRY,x
-	inx
-	inx
-	cpx #LOADBUFFER+BUFFERSIZE
-	bne mainCopyLoop
+	; Open the sprite bank file
+	jsr PRODOS
+	.byte $c8
+	.addr fileOpenSprites
+	bne ioError
+
+	; Load the compiled sprites into bank 0
+	jsr PRODOS
+	.byte $ca
+	.addr fileRead
+	bne ioError
+
+	; Close the file
+	jsr PRODOS
+	.byte $cc
+	.addr fileClose
+
+	NATIVE
+
+	; Copy sprites into bank 3
+	ldx fileReadLen
+	lda #3
+	jsr copyBytes
 
 	; Set up a long jump into bank 2, and
 	; a way for game code to get back here to exit
@@ -66,6 +83,37 @@ returnToProDOS:
 ioError:
 	brk
 
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; copyBytes
+; Copy data from read buffer in bank 0 to
+; bottom of any other bank. Must be in native mode.
+;
+; X = Length of data in bytes
+; A = Bank number of destination
+;
+copyBytes:
+	phx
+	BITS8
+	sta copyBytesDest+3
+	BITS16
+	plx
+	dex
+	dex
+
+copyBytesLoop:
+	lda LOADBUFFER,x
+
+copyBytesDest:
+	sta $010000,x
+	dex
+	dex
+	bpl copyBytesLoop
+	rts
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
 fileOpenCode:
 	.byte 3
 	.addr codePath
@@ -73,16 +121,26 @@ fileOpenCode:
 	.byte 0					; Result (file handle)
 	.byte 0					; Padding
 
-fileReadCode:
+fileRead:
 	.byte 4
 	.byte 1					; File handle (we know it's gonna be 1)
 	.addr LOADBUFFER
 	.word BUFFERSIZE
+fileReadLen:
 	.word 0					; Result (bytes read)
 
-fileCloseCode:
+fileClose:
 	.byte 1
 	.byte 1					; File handle (we know it's gonna be 1)
 
+fileOpenSprites:
+	.byte 3
+	.addr spritePath
+	.addr $9200				; 1k below BASIC.SYSTEM
+	.byte 0					; Result (file handle)
+	.byte 0					; Padding
+
 codePath:
 	pstring "/GSAPP/CODEBANK"
+spritePath:
+	pstring "/GSAPP/SPRITEBANK00"