X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/6bd4619bee74d76a525f7def9ac56ffcf114a3f4..75ab1e9975f64989ee18450eb09b66b33ec5def8:/bootrom.asm?ds=sidebyside

diff --git a/bootrom.asm b/bootrom.asm
index 4f71d5e..4e780bf 100644
--- a/bootrom.asm
+++ b/bootrom.asm
@@ -28,14 +28,14 @@ Addr_0007:
 	LD HL,$8010		; $0024
 Addr_0027:
 	LD A,[DE]		; $0027
-	CALL $0095		; $0028
-	CALL $0096		; $002b
+	CALL a95		; $0028
+	CALL a96		; $002b
 	INC DE		; $002e
 	LD A,E		; $002f
 	CP $34		; $0030
 	JR NZ, Addr_0027	; $0032
 
-	LD DE,$00d8		; $0034  Load 8 additional bytes into Video RAM
+	LD DE,Addr_00D8		; $0034  Load 8 additional bytes into Video RAM
 	LD B,$08		; $0037
 Addr_0039:
 	LD A,[DE]		; $0039
@@ -112,8 +112,8 @@ Addr_0086:
 
 	; ==== Graphic routine ====
 
-	LD C,A		; $0095  "Double up" all the bits of the graphics data
-	LD B,$04		; $0096     and store in Video RAM
+a95:	LD C,A		; $0095  "Double up" all the bits of the graphics data
+a96:	LD B,$04		; $0096     and store in Video RAM
 Addr_0098:
 	PUSH BC		; $0098
 	RL C			; $0099
@@ -129,7 +129,7 @@ Addr_0098:
 	INC HL		; $00a6
 	RET			; $00a7
 
-Addr_00A8:
+NintendoLogo:
 	;Nintendo Logo
 	DB $CE,$ED,$66,$66,$CC,$0D,$00,$0B,$03,$73,$00,$83,$00,$0C,$00,$0D 
 	DB $00,$08,$11,$1F,$88,$89,$00,$0E,$DC,$CC,$6E,$E6,$DD,$DD,$D9,$99 
@@ -143,7 +143,7 @@ Addr_00D8:
 
 Addr_00E0:	
 	LD HL,$0104		; $00e0	; point HL to Nintendo logo in cart
-	LD DE,$00a8		; $00e3	; point DE to Nintendo logo in DMG rom
+	LD DE,NintendoLogo	; $00e3	; point DE to Nintendo logo in DMG rom
 
 Addr_00E6:
 	LD A,[DE]		; $00e6
@@ -168,3 +168,29 @@ Addr_00F4:
 
 	LD A,$01		; $00fc
 	LD [$FF50],A	; $00fe	;turn off DMG rom
+
+
+	SECTION "b",HOME[$100]
+boot:	jr .running	; $0100
+	nop		; $0102
+	nop		; $0103
+	;Nintendo Logo	; $0104
+	DB $CE,$ED,$66,$66,$CC,$0D,$00,$0B,$03,$73,$00,$83,$00,$0C,$00,$0D 
+	DB $00,$08,$11,$1F,$88,$89,$00,$0E,$DC,$CC,$6E,$E6,$DD,$DD,$D9,$99 
+	DB $BB,$BB,$67,$63,$6E,$0E,$EC,$CC,$DD,$DC,$99,$9F,$BB,$B9,$33,$3E
+	;$0134 
+	DB $00,$E7,$00,$00,$00,$00,$00,$00, $00,$00,$00,$00,$00,$00,$00,$00
+	;$0144
+	DB $00,$00,$00,$00,$00,$00,$00,$00, $00,$00,$00,$00,$00,$00,$00,$00
+.running:
+	ld a, $FF
+	ld [$FF51], A
+	ld a, $00
+	ld [$FF25], a
+.diq:	ld A, [$FF51]
+	cp 0
+	jr z, .diq
+	ld a, 0
+	LD [$FF40],A
+	jp $0000
+