From a444d0a4296f811f8179180550f6b1e3c5be1aae Mon Sep 17 00:00:00 2001 From: kiana-S Date: Sat, 30 Apr 2022 13:35:35 -0400 Subject: [PATCH] Add include files --- with-asar/src/header.inc | 25 ++++++++++ with-asar/src/init.asm | 102 +++++++++++++++++++++++++++++++++++++++ with-asar/src/main.asm | 2 + 3 files changed, 129 insertions(+) create mode 100644 with-asar/src/header.inc create mode 100644 with-asar/src/init.asm diff --git a/with-asar/src/header.inc b/with-asar/src/header.inc new file mode 100644 index 0000000..81ce1d4 --- /dev/null +++ b/with-asar/src/header.inc @@ -0,0 +1,25 @@ +includeonce + +lorom + +org $00FFE0 + +; Native mode +dw $FFFF +dw $FFFF +dw $FFFF +dw $FFFF +dw $FFFF +dw VBlank +dw $FFFF +dw $FFFF + +; Emulation mode +dw $FFFF +dw $FFFF +dw $FFFF +dw $FFFF +dw $FFFF +dw $FFFF +dw Reset +dw $FFFF diff --git a/with-asar/src/init.asm b/with-asar/src/init.asm new file mode 100644 index 0000000..adccc03 --- /dev/null +++ b/with-asar/src/init.asm @@ -0,0 +1,102 @@ +includeonce + +macro init() + sei ; Disabled interrupts + clc ; clear carry to switch to native mode + xce ; Xchange carry & emulation bit. native mode + rep #$18 ; Binary mode (decimal mode off) + ldx #$1FFF ; set stack to $1FFF + txs + + jsr Init +endmacro + +org $008000 +Init: + 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) + stz $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 + rts diff --git a/with-asar/src/main.asm b/with-asar/src/main.asm index e69de29..30c3945 100644 --- a/with-asar/src/main.asm +++ b/with-asar/src/main.asm @@ -0,0 +1,2 @@ +incsrc header.inc +incsrc init.asm