mirror of
https://github.com/deater/tb1.git
synced 2024-06-14 19:29:35 +00:00
snes: have opening splash partially implemented
This commit is contained in:
Vince Weaver
parent
aedf6ea385
commit
2c190bd88c
|
|
@ -8,8 +8,8 @@ all: checksum.inc
|
|||
tb1_snes.sfc: tb1_snes.o snes-hirom.cfg
|
||||
$(LD) -o tb1_snes.sfc --config snes-hirom.cfg --obj tb1_snes.o
|
||||
|
||||
tb1_snes.o: tb1_snes.s snes_init.s title_screen.s \
|
||||
tb1_title.tiles tb1_opening.tiles
|
||||
tb1_snes.o: tb1_snes.s snes_init.s opening.s title_screen.s \
|
||||
tb1_title.tiles tb1_opening.tiles tbfont.inc
|
||||
$(AS) -t none -o tb1_snes.o -l tb1_snes.lst -c tb1_snes.s
|
||||
|
||||
tb1_opening.tiles: graphics/vmw_logo.pcx ./tools/pcx_to_tiles_8bpp
|
||||
|
|
@ -21,6 +21,9 @@ tb1_title.tiles: graphics/tb1_title.pcx ./tools/pcx_to_tiles_8bpp
|
|||
checksum.inc: ./tools/snes_checksum tb1_snes.sfc
|
||||
./tools/snes_checksum < tb1_snes.sfc > checksum.inc
|
||||
|
||||
tbfont.inc: ./tools/tbfont.tb1 ./tools/convert_font_4bpp
|
||||
./tools/convert_font_4bpp < ./tools/tbfont.tb1 > tbfont.inc
|
||||
|
||||
tools/snes_checksum:
|
||||
cd tools && make
|
||||
|
||||
|
|
|
|||
|
|
@ -1,2 +1,2 @@
|
|||
.word $cacf ; Complement of checksum
|
||||
.word $3530 ; Unsigned 16-bit sum of ROM
|
||||
.word $eb68 ; Complement of checksum
|
||||
.word $1497 ; Unsigned 16-bit sum of ROM
|
||||
|
|
|
|||
284
tb_snes/opening.s
Normal file
284
tb_snes/opening.s
Normal file
|
|
@ -0,0 +1,284 @@
|
|||
.segment "STARTUP"
|
||||
|
||||
|
||||
display_opening:
|
||||
|
||||
rep #$10 ; X/Y = 16 bit
|
||||
.i16
|
||||
sep #$20 ; mem/A = 8 bit
|
||||
.a8
|
||||
|
||||
;==========================
|
||||
; Setup Backgrounds
|
||||
;==========================
|
||||
|
||||
; we want the BG1 Tilemap to start at VRAM $F000 (60k)
|
||||
; Format is
|
||||
; aaaa aass a is shifted by 10 for address
|
||||
; ss = size of screen in tiles 00 = 32x32
|
||||
;
|
||||
; 1111 0000
|
||||
|
||||
lda #$f0 ; BG1 Tilemap starts at VRAM $F000
|
||||
sta $2107 ; bg1 src
|
||||
|
||||
; we want the BG2 Tilemap to start at VRAM $F800
|
||||
; Format is
|
||||
; aaaa aass a is shifted by 10 for address
|
||||
; ss = size of screen in tiles 00 = 32x32
|
||||
;
|
||||
; 1111 0000
|
||||
|
||||
; lda #$f8 ; BG2 Tilemap starts at VRAM $F800
|
||||
; sta $2108 ; bg1 src
|
||||
|
||||
|
||||
|
||||
; aaaa bbbb a= BG2 tiles, b= BG1 tiles
|
||||
; bbbb<<13
|
||||
; 0000 0000
|
||||
; our BG1 tiles are stored starting in VRAM $0000
|
||||
; our BG2 tiles are stored starting in VRAM $e000
|
||||
|
||||
; lda #$e0
|
||||
lda #$00
|
||||
sta $210b ; bg1 tile data starts at VRAM 0000
|
||||
|
||||
|
||||
|
||||
;==============
|
||||
; Load Palettes
|
||||
;==============
|
||||
.a8
|
||||
.i16
|
||||
stz $2121 ; CGRAM color-generator read/write address
|
||||
|
||||
ldy #$0200 ; we have 256 colors / 512 bytes
|
||||
|
||||
ldx #$0000 ; pointer
|
||||
opening_copypal:
|
||||
lda f:vmw_logo_palette, x ; load byte of palette
|
||||
sta $2122 ; store to color generator
|
||||
inx
|
||||
dey
|
||||
bne opening_copypal
|
||||
|
||||
|
||||
;=====================
|
||||
; Load Tile Data
|
||||
;=====================
|
||||
|
||||
; replace with DMA!
|
||||
|
||||
|
||||
rep #$20 ; set accumulator/mem to 16bit
|
||||
.a16
|
||||
.i16
|
||||
lda #$0020 ;
|
||||
sta $2116 ; set adddress for VRAM read/write
|
||||
; multiply by 2, so 0x0000
|
||||
|
||||
ldy #$2580 ; Copy 300 tiles, which are 64 bytes each
|
||||
; 8x8 tile with 8bpp (four bits per pixel)
|
||||
; in 2-byte chunks, so
|
||||
; (300*64)/2 = 9600 = 0x2580
|
||||
|
||||
ldx #$0000
|
||||
opening_copy_tile_data:
|
||||
lda f:vmw_logo_tile_data, x
|
||||
sta $2118 ; write the data
|
||||
inx ; increment by 2 (16-bits)
|
||||
inx
|
||||
dey ; decrement counter
|
||||
bne opening_copy_tile_data
|
||||
|
||||
|
||||
;=====================
|
||||
; Load TB_FONT 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
|
||||
opening_copy_font_data:
|
||||
; lda f:tb_font, x
|
||||
; sta $2118 ; write the data
|
||||
; inx ; increment by 2 (16-bits)
|
||||
; inx
|
||||
; dey ; decrement counter
|
||||
; bne opening_copy_font_data
|
||||
|
||||
|
||||
;===================================
|
||||
; clear background to linear tilemap
|
||||
;===================================
|
||||
.a16
|
||||
.i16
|
||||
|
||||
opening_clear_linear_tilemap:
|
||||
|
||||
; 6 down, 1 right = (6*32)+1 = 97 = 0xc1
|
||||
|
||||
lda #$f0c1 ; we set tilemap to be at VRAM 0xf000 earlier
|
||||
sta $2116
|
||||
|
||||
ldy #$0001 ; clear counters
|
||||
; 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#
|
||||
|
||||
ldx #$0001
|
||||
|
||||
; 8-bit color so ppp is 0
|
||||
; and we have a linear tilemap
|
||||
; 0000 0000
|
||||
; vhop ppcc cccc cccc
|
||||
|
||||
.a16
|
||||
.i16
|
||||
|
||||
opening_fill_screen_loop:
|
||||
|
||||
cpx #31
|
||||
bne opening_not_thirty
|
||||
|
||||
stz $2118
|
||||
stz $2118
|
||||
ldx #$0000
|
||||
bra opening_check_end
|
||||
|
||||
opening_not_thirty:
|
||||
tya
|
||||
|
||||
sta $2118
|
||||
|
||||
iny
|
||||
|
||||
opening_check_end:
|
||||
inx
|
||||
|
||||
cpy #$0140 ; (10*32) = 0x140
|
||||
|
||||
bne opening_fill_screen_loop
|
||||
|
||||
; Write String to Background
|
||||
|
||||
;opening_put_string:
|
||||
|
||||
; lda #$fd08 ; set VRAM address
|
||||
; f800 = upper left
|
||||
; want 4x20, so (20 * 64) + 4*2 = 1288 = 0x508
|
||||
; fd08
|
||||
|
||||
; sta $2116 ; set VRAM r/w address
|
||||
|
||||
; ldy #$000d ; length of string
|
||||
|
||||
|
||||
; ldx #$0000 ; string index
|
||||
|
||||
; lda #$0200 ; clear A
|
||||
|
||||
opening_copy_string:
|
||||
|
||||
; 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
|
||||
; while leaving top 8-bits alone
|
||||
; beq opening_done_copy_string
|
||||
|
||||
; sec
|
||||
; sbc #$20
|
||||
|
||||
; rep #$20 ; set accumulator back to 16 bit
|
||||
.a16
|
||||
; 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
|
||||
|
||||
; bra opening_copy_string
|
||||
opening_done_copy_string:
|
||||
|
||||
|
||||
opening_setup_video:
|
||||
|
||||
sep #$20 ; set accumulator to 8 bit
|
||||
; as we only want to do an 8-bit load
|
||||
.a8
|
||||
.i16
|
||||
|
||||
|
||||
; Enable sprite
|
||||
; sssnnbbb
|
||||
; ss = size (8x8 in our case)
|
||||
; nn = name
|
||||
; bb = base selection, VRAM >> 14
|
||||
; lda #%00000010 ; point at 0x4000 in VRAM
|
||||
; sta $2101
|
||||
|
||||
; 000abcde
|
||||
; a = object, b=BG4 c=BG3 d=BG2 e=BG1
|
||||
; lda #%00010001 ; Enable BG1
|
||||
; lda #%00000011 ; Enable BG1
|
||||
lda #%00000001 ; Enable BG1
|
||||
|
||||
sta $212c
|
||||
|
||||
; disable subscreen
|
||||
stz $212d
|
||||
|
||||
; abcd efff
|
||||
; abcd = 8 (0) or 16 width for BG1234
|
||||
; e = priority for BG3
|
||||
; fff = background mode
|
||||
lda #$03
|
||||
sta $2105 ; set Mode 3
|
||||
|
||||
; a000 bbbb
|
||||
; a = screen on/off (0=on), ffff = brightness
|
||||
|
||||
lda #$0f
|
||||
sta $2100 ; Turn on screen, full Brightness
|
||||
|
||||
|
||||
; lda #$81 ; Enable NMI (VBlank Interrupt) and joypads
|
||||
; sta $4200 ;
|
||||
|
||||
|
||||
less:
|
||||
|
||||
; repeat forever
|
||||
; stp?
|
||||
|
||||
bra less
|
||||
|
||||
|
||||
opening_string:
|
||||
.asciiz "A VMW SOFTWARE PRODUCTION"
|
||||
|
||||
.segment "HIGHROM"
|
||||
|
||||
tb_font:
|
||||
;.include "tbfont.inc"
|
||||
|
||||
.include "tb1_opening.tiles"
|
||||
|
||||
|
|
@ -1,385 +0,0 @@
|
|||
;
|
||||
; tb1_snes.s -- Tom Bombem SNES in 65c816 Assembly v 0.1
|
||||
;
|
||||
; by Vince Weaver <vince _at_ deater.net>
|
||||
|
||||
|
||||
; Page zero locations
|
||||
|
||||
.define EQU =
|
||||
;LOGOB EQU $FA
|
||||
;LOGOH EQU $F9
|
||||
|
||||
.setcpu "65816"
|
||||
|
||||
.segment "STARTUP"
|
||||
|
||||
; Called at Reset (Startup) Time
|
||||
Reset:
|
||||
|
||||
; Run the initialization code
|
||||
; as the hardware state is unknown at reset
|
||||
|
||||
.include "snes_init.s"
|
||||
|
||||
;================================
|
||||
; Get Ready to Go
|
||||
;================================
|
||||
|
||||
phk ;make sure Data Bank = Program Bank
|
||||
plb
|
||||
|
||||
cli ;enable interrupts
|
||||
|
||||
|
||||
|
||||
;==============================================
|
||||
;==============================================
|
||||
; DONE INITIALIZATION
|
||||
;==============================================
|
||||
;==============================================
|
||||
|
||||
start_program:
|
||||
|
||||
rep #$10 ; X/Y = 16 bit
|
||||
.i16
|
||||
sep #$20 ; mem/A = 8 bit
|
||||
.a8
|
||||
|
||||
|
||||
;===============================================
|
||||
;===============================================
|
||||
; Display to the screen
|
||||
;===============================================
|
||||
;===============================================
|
||||
|
||||
;==========================
|
||||
; Setup Backgrounds
|
||||
;==========================
|
||||
|
||||
; we want the BG1 Tilemap to start at VRAM $F000 (60k)
|
||||
; Format is
|
||||
; aaaa aass a is shifted by 10 for address
|
||||
; ss = size of screen in tiles 00 = 32x32
|
||||
;
|
||||
; 1111 0000
|
||||
|
||||
lda #$f0 ; BG1 Tilemap starts at VRAM $F000
|
||||
sta $2107 ; bg1 src
|
||||
|
||||
; we want the BG2 Tilemap to start at VRAM $F800
|
||||
; Format is
|
||||
; aaaa aass a is shifted by 10 for address
|
||||
; ss = size of screen in tiles 00 = 32x32
|
||||
;
|
||||
; 1111 0000
|
||||
|
||||
lda #$f8 ; BG2 Tilemap starts at VRAM $F800
|
||||
sta $2108 ; bg1 src
|
||||
|
||||
|
||||
|
||||
; aaaa bbbb a= BG2 tiles, b= BG1 tiles
|
||||
; bbbb<<13
|
||||
; 0000 0000
|
||||
; our BG1 tiles are stored starting in VRAM $0000
|
||||
; our BG2 tiles are stored starting in VRAM $e000
|
||||
|
||||
lda #$e0
|
||||
sta $210b ; bg1 tile data starts at VRAM 0000
|
||||
|
||||
|
||||
|
||||
;==============
|
||||
; Load Palettes
|
||||
;==============
|
||||
.a8
|
||||
.i16
|
||||
stz $2121 ; CGRAM color-generator read/write address
|
||||
|
||||
ldy #$0200 ; we have 256 colors / 512 bytes
|
||||
|
||||
ldx #$0000 ; pointer
|
||||
copypal:
|
||||
lda f:opening_palette, x ; load byte of palette
|
||||
sta $2122 ; store to color generator
|
||||
inx
|
||||
dey
|
||||
bne copypal
|
||||
|
||||
|
||||
;=====================
|
||||
; Load Tile Data
|
||||
;=====================
|
||||
|
||||
; replace with DMA!
|
||||
|
||||
|
||||
rep #$20 ; set accumulator/mem to 16bit
|
||||
.a16
|
||||
.i16
|
||||
lda #$0020 ;
|
||||
sta $2116 ; set adddress for VRAM read/write
|
||||
; multiply by 2, so 0x0000
|
||||
|
||||
ldy #$2580 ; Copy 300 tiles, which are 64 bytes each
|
||||
; 8x8 tile with 8bpp (four bits per pixel)
|
||||
; in 2-byte chunks, so
|
||||
; (300*64)/2 = 9600 = 0x2580
|
||||
|
||||
ldx #$0000
|
||||
copy_tile_data:
|
||||
lda f:opening_tile_data, x
|
||||
sta $2118 ; write the data
|
||||
inx ; increment by 2 (16-bits)
|
||||
inx
|
||||
dey ; decrement counter
|
||||
bne copy_tile_data
|
||||
|
||||
|
||||
;=====================
|
||||
; Load TB_FONT 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
|
||||
copy_font_data:
|
||||
lda f:tb_font, x
|
||||
sta $2118 ; write the data
|
||||
inx ; increment by 2 (16-bits)
|
||||
inx
|
||||
dey ; decrement counter
|
||||
bne copy_font_data
|
||||
|
||||
|
||||
;===================================
|
||||
; clear background to linear tilemap
|
||||
;===================================
|
||||
.a16
|
||||
.i16
|
||||
|
||||
clear_linear_tilemap:
|
||||
|
||||
; 6 down, 1 right = (6*32)+1 = 97 = 0xc1
|
||||
|
||||
lda #$f0c1 ; we set tilemap to be at VRAM 0xf000 earlier
|
||||
sta $2116
|
||||
|
||||
ldy #$0001 ; clear counters
|
||||
; 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#
|
||||
|
||||
ldx #$0001
|
||||
|
||||
; 8-bit color so ppp is 0
|
||||
; and we have a linear tilemap
|
||||
; 0000 0000
|
||||
; vhop ppcc cccc cccc
|
||||
|
||||
.a16
|
||||
.i16
|
||||
|
||||
fill_screen_loop:
|
||||
|
||||
cpx #31
|
||||
bne not_thirty
|
||||
|
||||
stz $2118
|
||||
stz $2118
|
||||
ldx #$0000
|
||||
bra check_end
|
||||
|
||||
not_thirty:
|
||||
tya
|
||||
|
||||
sta $2118
|
||||
|
||||
iny
|
||||
|
||||
check_end:
|
||||
inx
|
||||
|
||||
cpy #$0140 ; (10*32) = 0x140
|
||||
|
||||
bne fill_screen_loop
|
||||
|
||||
; Write String to Background
|
||||
|
||||
put_string:
|
||||
|
||||
lda #$fd08 ; set VRAM address
|
||||
; f800 = upper left
|
||||
; want 4x20, so (20 * 64) + 4*2 = 1288 = 0x508
|
||||
; fd08
|
||||
|
||||
sta $2116 ; set VRAM r/w address
|
||||
|
||||
ldy #$000d ; length of string
|
||||
|
||||
|
||||
ldx #$0000 ; string index
|
||||
|
||||
lda #$0200 ; clear A
|
||||
|
||||
copy_string:
|
||||
|
||||
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
|
||||
; while leaving top 8-bits alone
|
||||
beq done_copy_string
|
||||
|
||||
sec
|
||||
sbc #$20
|
||||
|
||||
rep #$20 ; set accumulator back to 16 bit
|
||||
.a16
|
||||
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
|
||||
|
||||
bra copy_string
|
||||
done_copy_string:
|
||||
|
||||
|
||||
setup_video:
|
||||
|
||||
sep #$20 ; set accumulator to 8 bit
|
||||
; as we only want to do an 8-bit load
|
||||
.a8
|
||||
.i16
|
||||
|
||||
|
||||
; Enable sprite
|
||||
; sssnnbbb
|
||||
; ss = size (8x8 in our case)
|
||||
; nn = name
|
||||
; bb = base selection, VRAM >> 14
|
||||
; lda #%00000010 ; point at 0x4000 in VRAM
|
||||
; sta $2101
|
||||
|
||||
; 000abcde
|
||||
; a = object, b=BG4 c=BG3 d=BG2 e=BG1
|
||||
; lda #%00010001 ; Enable BG1
|
||||
lda #%00000011 ; Enable BG1
|
||||
|
||||
sta $212c
|
||||
|
||||
; disable subscreen
|
||||
stz $212d
|
||||
|
||||
; abcd efff
|
||||
; abcd = 8 (0) or 16 width for BG1234
|
||||
; e = priority for BG3
|
||||
; fff = background mode
|
||||
lda #$03
|
||||
sta $2105 ; set Mode 3
|
||||
|
||||
; a000 bbbb
|
||||
; a = screen on/off (0=on), ffff = brightness
|
||||
|
||||
lda #$0f
|
||||
sta $2100 ; Turn on screen, full Brightness
|
||||
|
||||
|
||||
; lda #$81 ; Enable NMI (VBlank Interrupt) and joypads
|
||||
; sta $4200 ;
|
||||
|
||||
|
||||
overflowing:
|
||||
|
||||
; repeat forever
|
||||
; stp?
|
||||
|
||||
bra overflowing
|
||||
|
||||
|
||||
;============================================================================
|
||||
|
||||
wram_fill_byte:
|
||||
.byte $00
|
||||
|
||||
opening_string:
|
||||
.asciiz "A VMW SOFTWARE PRODUCTION"
|
||||
|
||||
.segment "HIGHROM"
|
||||
|
||||
tb_font:
|
||||
.include "tbfont.inc"
|
||||
|
||||
.include "tb1_opening.tiles"
|
||||
|
||||
.segment "BSS"
|
||||
|
||||
fx:
|
||||
.res 1
|
||||
fy:
|
||||
.res 1
|
||||
offset:
|
||||
.res 1
|
||||
tile_offset:
|
||||
.res 2
|
||||
logo_pointer:
|
||||
.res 2
|
||||
|
||||
screen_byte:
|
||||
.res 8*4 ; 8 bytes, times four
|
||||
|
||||
output:
|
||||
.res 4096
|
||||
|
||||
.segment "CARTINFO"
|
||||
.byte "TOM BOMBEM 1 " ; Game Title (21 bytes)
|
||||
.byte $21 ; ROM Layout
|
||||
; 0x20:LowRom
|
||||
; 0x21:HiRom
|
||||
; 0x30/0x31:FastRom
|
||||
.byte $00 ; Cartridge Type (00 == only ROM)
|
||||
.byte $09 ; ROM Size (2^N KB)
|
||||
.byte $00 ; RAM Size
|
||||
.byte $01 ; Country Code (1=NTSC,2=PAL)
|
||||
.byte $00 ; License Code (0=unassigned)
|
||||
.byte $00 ; Version
|
||||
.include "checksum.inc"
|
||||
.word $0,$0 ; unknown?
|
||||
|
||||
; Interrupt Vectors!
|
||||
|
||||
.word $0000 ; Native:COP
|
||||
.word $0000 ; Native:BRK
|
||||
.word $0000 ; Native:ABORT
|
||||
.word $0000 ; Native:NMI
|
||||
.word $0000 ;
|
||||
.word $0000 ; Native:IRQ
|
||||
|
||||
.word $0000 ;
|
||||
.word $0000 ;
|
||||
|
||||
.word $0000 ; Emulation:COP
|
||||
.word $0000 ;
|
||||
.word $0000 ; Emulation:ABORT
|
||||
.word $0000 ; Emulation:NMI
|
||||
.word .LOWORD(Reset) ; Emulation:RESET
|
||||
.word $0000 ; Emulation:IRQ/BRK
|
||||
|
||||
|
|
@ -39,10 +39,13 @@ Reset:
|
|||
|
||||
start_program:
|
||||
|
||||
jsr display_opening
|
||||
|
||||
jsr display_title
|
||||
|
||||
|
||||
.include "title_screen.s"
|
||||
.include "opening.s"
|
||||
|
||||
;============================================================================
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user