mirror of
https://github.com/deater/tb1.git
synced 2024-06-14 19:29:35 +00:00
snes: opening has right colors
This commit is contained in:
Vince Weaver
parent
2c190bd88c
commit
53609b2226
|
|
@ -31,5 +31,5 @@ tools/pcx_to_tiles_8bpp:
|
|||
cd tools && make
|
||||
|
||||
clean:
|
||||
rm -f *~ *.o *.lst *.sfc *.tiles
|
||||
rm -f *~ *.o *.lst *.sfc *.tiles tbfont.inc
|
||||
cd tools && make clean
|
||||
|
|
|
|||
|
|
@ -1,2 +1,2 @@
|
|||
.word $eb68 ; Complement of checksum
|
||||
.word $1497 ; Unsigned 16-bit sum of ROM
|
||||
.word $dd2e ; Complement of checksum
|
||||
.word $22d1 ; Unsigned 16-bit sum of ROM
|
||||
|
|
|
|||
|
|
@ -19,7 +19,7 @@ display_opening:
|
|||
;
|
||||
; 1111 0000
|
||||
|
||||
lda #$f0 ; BG1 Tilemap starts at VRAM $F000
|
||||
lda #$78 ; BG1 Tilemap starts at VRAM $F000
|
||||
sta $2107 ; bg1 src
|
||||
|
||||
; we want the BG2 Tilemap to start at VRAM $F800
|
||||
|
|
@ -27,11 +27,10 @@ display_opening:
|
|||
; aaaa aass a is shifted by 10 for address
|
||||
; ss = size of screen in tiles 00 = 32x32
|
||||
;
|
||||
; 1111 0000
|
||||
|
||||
; lda #$f8 ; BG2 Tilemap starts at VRAM $F800
|
||||
; sta $2108 ; bg1 src
|
||||
; 1111 1000
|
||||
|
||||
lda #$7c ; BG2 Tilemap starts at VRAM $F800
|
||||
sta $2108 ; bg2 src
|
||||
|
||||
|
||||
; aaaa bbbb a= BG2 tiles, b= BG1 tiles
|
||||
|
|
@ -40,8 +39,7 @@ display_opening:
|
|||
; our BG1 tiles are stored starting in VRAM $0000
|
||||
; our BG2 tiles are stored starting in VRAM $e000
|
||||
|
||||
; lda #$e0
|
||||
lda #$00
|
||||
lda #$70
|
||||
sta $210b ; bg1 tile data starts at VRAM 0000
|
||||
|
||||
|
||||
|
|
@ -53,7 +51,7 @@ display_opening:
|
|||
.i16
|
||||
stz $2121 ; CGRAM color-generator read/write address
|
||||
|
||||
ldy #$0200 ; we have 256 colors / 512 bytes
|
||||
ldy #$00fe ; we have 127 colors / 512 bytes
|
||||
|
||||
ldx #$0000 ; pointer
|
||||
opening_copypal:
|
||||
|
|
@ -63,6 +61,13 @@ opening_copypal:
|
|||
dey
|
||||
bne opening_copypal
|
||||
|
||||
; make last color white
|
||||
lda #$7f
|
||||
sta $2122
|
||||
lda #$ff
|
||||
sta $2122
|
||||
|
||||
|
||||
|
||||
;=====================
|
||||
; Load Tile Data
|
||||
|
|
@ -99,26 +104,26 @@ opening_copy_tile_data:
|
|||
|
||||
; replace with DMA!
|
||||
|
||||
; rep #$20 ; set accumulator/mem to 16bit
|
||||
;.a16
|
||||
;.i16
|
||||
; lda #$7000 ;
|
||||
; sta $2116 ; set adddress for VRAM read/write
|
||||
; ; multiply by 2, so 0xe000
|
||||
;
|
||||
; ldy #$0800 ; Copy 128 tiles, which are 32 bytes each
|
||||
; ; 8x8 tile with 4bpp (four bits per pixel)
|
||||
;;; ; in 2-byte chunks, so
|
||||
; ; (128*32)/2 = 2048 = 0x0800
|
||||
;
|
||||
; ldx #$0000
|
||||
rep #$20 ; set accumulator/mem to 16bit
|
||||
.a16
|
||||
.i16
|
||||
lda #$7000 ;
|
||||
sta $2116 ; set adddress for VRAM read/write
|
||||
; multiply by 2, so 0xe000
|
||||
|
||||
ldy #$0800 ; Copy 128 tiles, which are 32 bytes each
|
||||
; 8x8 tile with 4bpp (four bits per pixel)
|
||||
; in 2-byte chunks, so
|
||||
; (128*32)/2 = 2048 = 0x0800
|
||||
|
||||
ldx #$0000
|
||||
opening_copy_font_data:
|
||||
; lda f:tb_font, x
|
||||
; sta $2118 ; write the data
|
||||
; inx ; increment by 2 (16-bits)
|
||||
; inx
|
||||
; dey ; decrement counter
|
||||
; bne opening_copy_font_data
|
||||
lda f:tb_font, x
|
||||
sta $2118 ; write the data
|
||||
inx ; increment by 2 (16-bits)
|
||||
inx
|
||||
dey ; decrement counter
|
||||
bne opening_copy_font_data
|
||||
|
||||
|
||||
;===================================
|
||||
|
|
@ -127,11 +132,14 @@ opening_copy_font_data:
|
|||
.a16
|
||||
.i16
|
||||
|
||||
|
||||
opening_clear_linear_tilemap:
|
||||
|
||||
; 6 down, 1 right = (6*32)+1 = 97 = 0xc1
|
||||
|
||||
lda #$f0c1 ; we set tilemap to be at VRAM 0xf000 earlier
|
||||
; 1111 0000 1100 0001
|
||||
lda #$78c1 ; we set tilemap to be at VRAM 0xf000 earlier
|
||||
; f0c1
|
||||
sta $2116
|
||||
|
||||
ldy #$0001 ; clear counters
|
||||
|
|
@ -177,45 +185,40 @@ opening_check_end:
|
|||
|
||||
; Write String to Background
|
||||
|
||||
;opening_put_string:
|
||||
|
||||
; lda #$fd08 ; set VRAM address
|
||||
opening_put_string:
|
||||
; 1111 1101 0000 1000
|
||||
lda #$7e44 ; set VRAM address
|
||||
; f800 = upper left
|
||||
; want 4x20, so (20 * 64) + 4*2 = 1288 = 0x508
|
||||
; fd08
|
||||
|
||||
; sta $2116 ; set VRAM r/w address
|
||||
sta $2116 ; set VRAM r/w address
|
||||
|
||||
; ldy #$000d ; length of string
|
||||
ldx #$0000 ; string index
|
||||
|
||||
|
||||
; ldx #$0000 ; string index
|
||||
|
||||
; lda #$0200 ; clear A
|
||||
; vhop ppcc cccc cccc
|
||||
lda #$1c00 ; clear A
|
||||
|
||||
opening_copy_string:
|
||||
|
||||
; sep #$20 ; set accumulator to 8 bit
|
||||
sep #$20 ; set accumulator to 8 bit
|
||||
; as we only want to do an 8-bit load
|
||||
.a8
|
||||
; lda opening_string, x ; load string character
|
||||
lda opening_string, x ; load string character
|
||||
; while leaving top 8-bits alone
|
||||
; beq opening_done_copy_string
|
||||
beq opening_done_copy_string
|
||||
|
||||
; sec
|
||||
; sbc #$20
|
||||
|
||||
; rep #$20 ; set accumulator back to 16 bit
|
||||
rep #$20 ; set accumulator back to 16 bit
|
||||
.a16
|
||||
; sta $2118 ; store to VRAM
|
||||
sta $2118 ; store to VRAM
|
||||
; the bottom 8 bits is the tile to use
|
||||
; the top 8 bits is vhopppcc
|
||||
; vert flip, horiz flip o=priority
|
||||
; p = palette, c=top bits of tile#
|
||||
|
||||
; inx ; increment string pointer
|
||||
inx ; increment string pointer
|
||||
|
||||
; bra opening_copy_string
|
||||
bra opening_copy_string
|
||||
opening_done_copy_string:
|
||||
|
||||
|
||||
|
|
@ -239,7 +242,7 @@ opening_setup_video:
|
|||
; a = object, b=BG4 c=BG3 d=BG2 e=BG1
|
||||
; lda #%00010001 ; Enable BG1
|
||||
; lda #%00000011 ; Enable BG1
|
||||
lda #%00000001 ; Enable BG1
|
||||
lda #%00000011 ; Enable BG1 & BG2
|
||||
|
||||
sta $212c
|
||||
|
||||
|
|
@ -278,7 +281,7 @@ opening_string:
|
|||
.segment "HIGHROM"
|
||||
|
||||
tb_font:
|
||||
;.include "tbfont.inc"
|
||||
.include "tbfont.inc"
|
||||
|
||||
.include "tb1_opening.tiles"
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user