Fix the UART, and set it to 19k2 for more stable operation. Make the downloader a...

[fpgaboy.git] / diag.asm

diff --git a/diag.asm b/diag.asm
index 668452decb47fea864ee0715b5b6649a189d4b43..780f5c2b452df06e5da55f2c4d1d9cb932058dfb 100644 (file)
--- a/diag.asm
+++ b/diag.asm
@@ -1,6 +1,3 @@
-       section "end",HOME[1024]
-       nop
-
        SECTION "a",HOME[$00]
 
 start: jp main
@@ -14,6 +11,19 @@ start: jp main
        section "tmro",HOME[$50]
        jp tmro
 
+       SECTION "b",HOME[$100]
+boot:  jr main         ; $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
+
 main:
        ld a, $FF
        ld c, $51
@@ -91,6 +101,9 @@ tiles:
        db %00000000
 
 putscreen:
+       LD A,$fc                ; $001d  Setup BG palette
+       LD [$FF47],A    ; $001f
+
        ; Wait for vblank
        call .vblwait
 
@@ -318,8 +331,8 @@ waitsw:
        ld a,[c]
        cp $0
        jr z,.loop1
-.loop2:
-       ld a,[c]
+
+.loop2:        ld a,[c]
        cp $0
        jr nz,.loop2
        ret