diff options
Diffstat (limited to 'init.asm')
| -rw-r--r-- | init.asm | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/init.asm b/init.asm deleted file mode 100644 index bf71bde..0000000 --- a/init.asm +++ /dev/null @@ -1,95 +0,0 @@ - ; Initialise SNES - ; - sei - clc - xce - ldx #$1fff - txs - - sep #$30 ; X,Y,A are 8 bit numbers - lda #$8F ; screen off, full brightness - sta $2100 ; brightness + screen enable register - stz $2101 ; Sprite register (size + address in VRAM) - stz $2102 ; Sprite registers (address of sprite memory [OAM]) - stz $2103 ; "" "" - stz $2105 ; Mode 0, = Graphic mode register - stz $2106 ; noplanes, no mosaic, = Mosaic register - stz $2107 ; Plane 0 map VRAM location - stz $2108 ; Plane 1 map VRAM location - stz $2109 ; Plane 2 map VRAM location - stz $210A ; Plane 3 map VRAM location - stz $210B ; Plane 0+1 Tile data location - stz $210C ; Plane 2+3 Tile data location - stz $210D ; Plane 0 scroll x (first 8 bits) - stz $210D ; Plane 0 scroll x (last 3 bits) #$0 - #$07ff - lda #$FF ; The top pixel drawn on the screen isn't the top one in the tilemap, it's the one above that. - sta $210E ; Plane 0 scroll y (first 8 bits) - sta $2110 ; Plane 1 scroll y (first 8 bits) - sta $2112 ; Plane 2 scroll y (first 8 bits) - sta $2114 ; Plane 3 scroll y (first 8 bits) - lda #$07 ; Since this could get quite annoying, it's better to edit the scrolling registers to fix this. - sta $210E ; Plane 0 scroll y (last 3 bits) #$0 - #$07ff - sta $2110 ; Plane 1 scroll y (last 3 bits) #$0 - #$07ff - sta $2112 ; Plane 2 scroll y (last 3 bits) #$0 - #$07ff - sta $2114 ; Plane 3 scroll y (last 3 bits) #$0 - #$07ff - stz $210F ; Plane 1 scroll x (first 8 bits) - stz $210F ; Plane 1 scroll x (last 3 bits) #$0 - #$07ff - stz $2111 ; Plane 2 scroll x (first 8 bits) - stz $2111 ; Plane 2 scroll x (last 3 bits) #$0 - #$07ff - stz $2113 ; Plane 3 scroll x (first 8 bits) - stz $2113 ; Plane 3 scroll x (last 3 bits) #$0 - #$07ff - lda #$80 ; increase VRAM address after writing to $2119 - sta $2115 ; VRAM address increment register - stz $2116 ; VRAM address low - stz $2117 ; VRAM address high - stz $211A ; Initial Mode 7 setting register - stz $211B ; Mode 7 matrix parameter A register (low) - lda #$01 - sta $211B ; Mode 7 matrix parameter A register (high) - stz $211C ; Mode 7 matrix parameter B register (low) - stz $211C ; Mode 7 matrix parameter B register (high) - stz $211D ; Mode 7 matrix parameter C register (low) - stz $211D ; Mode 7 matrix parameter C register (high) - stz $211E ; Mode 7 matrix parameter D register (low) - sta $211E ; Mode 7 matrix parameter D register (high) - stz $211F ; Mode 7 center position X register (low) - stz $211F ; Mode 7 center position X register (high) - stz $2120 ; Mode 7 center position Y register (low) - stz $2120 ; Mode 7 center position Y register (high) - stz $2121 ; Color number register ($0-ff) - stz $2123 ; BG1 & BG2 Window mask setting register - stz $2124 ; BG3 & BG4 Window mask setting register - stz $2125 ; OBJ & Color Window mask setting register - stz $2126 ; Window 1 left position register - stz $2127 ; Window 2 left position register - stz $2128 ; Window 3 left position register - stz $2129 ; Window 4 left position register - stz $212A ; BG1, BG2, BG3, BG4 Window Logic register - stz $212B ; OBJ, Color Window Logic Register (or,and,xor,xnor) - sta $212C ; Main Screen designation (planes, sprites enable) - stz $212D ; Sub Screen designation - stz $212E ; Window mask for Main Screen - stz $212F ; Window mask for Sub Screen - lda #$30 - sta $2130 ; Color addition & screen addition init setting - stz $2131 ; Add/Sub sub designation for screen, sprite, color - lda #$E0 - sta $2132 ; color data for addition/subtraction - stz $2133 ; Screen setting (interlace x,y/enable SFX data) - stz $4200 ; Enable V-blank, interrupt, Joypad register - lda #$FF - sta $4201 ; Programmable I/O port - stz $4202 ; Multiplicand A - stz $4203 ; Multiplier B - stz $4204 ; Multiplier C - stz $4205 ; Multiplicand C - stz $4206 ; Divisor B - stz $4207 ; Horizontal Count Timer - stz $4208 ; Horizontal Count Timer MSB (most significant bit) - stz $4209 ; Vertical Count Timer - stz $420A ; Vertical Count Timer MSB - stz $420B ; General DMA enable (bits 0-7) - stz $420C ; Horizontal DMA (HDMA) enable (bits 0-7) - stz $420D ; Access cycle designation (slow/fast rom) - - cli ; Enable interrupts |