NES Game

    .inesprg 1 ; 1 bank of PRG data
    .ineschr 1 ; 1 bank of CHR data
    .inesmap 0 ; mapper 0
    .inesmir 1 ; VRAM mirroring bank, Idk what that means, so it's set to 1

    .rsset $0000
    .include "constants.asm"
    .include "important.asm"
    .include "macros.asm"

    ; Bank 0 starts at $8000, where our main code will go
    .bank 0
    .org $8000

RESET:
    lda #%10000000
    sta PPU_CTRL
    lda #%00011000
    sta PPU_MASK

    lda #1
    sta ballDown
    sta ballRight

    lda #0
    sta ballUp
    sta ballLeft

LoadPalette:
    lda PPU_STATUS
    lda #$3F
    sta PPU_ADDR
    lda #$00
    sta PPU_ADDR
    ldx #$00
LoopPalette:
    lda MainPalette, x
    sta PPU_DATA
    inx
    cpx #$20
    bne LoopPalette
LoadSprites:
    ldx #$00
LoopSprites:
    lda Sprites, x
    sta $0200, x
    inx
    cpx #44
    bne LoopSprites

readjoy:
    lda #$01
    sta JOYPAD1
    sta buttons1
    lsr a
    sta JOYPAD1
loop:
    lda JOYPAD1
    lsr a
    rol buttons1
    bcc loop
    rts

Forever:
    jmp Forever

NMI:
    lda #$00
    sta OAM_ADDR
    lda #$02
    sta OAM_DMA

    jsr readjoy
    jsr UpPressed1
    jsr DownPressed1
    jsr UpPressed2
    jsr DownPressed2

    jsr MoveBall

    rti

UpPressed1:
    Test_Button buttons1, BUTTON_UP
    beq UpDone1
    ldx $0214
    cpx #$08
    beq UpDone1
    dec $0204
    dec $0208
    dec $020C
    dec $0210
    dec $0214
UpDone1:
    rts
DownPressed1:
    Test_Button buttons1, BUTTON_DOWN
    beq DownDone1
    ldx $0214
    cpx #$E0
    beq DownDone1
    inc $0204
    inc $0208
    inc $020C
    inc $0210
    inc $0214
DownDone1:
    rts
UpPressed2:
    Test_Button buttons2, BUTTON_UP
    beq UpDone2
    dec $0218
    dec $021C
    dec $0220
    dec $0224
    dec $0228
UpDone2:
    rts
DownPressed2:
    Test_Button buttons2, BUTTON_DOWN
    beq DownDone2
    inc $0218
    inc $021C
    inc $0220
    inc $0224
    inc $0228
DownDone2:
    rts

MoveBall:
    lda $0200
    adc ballDown
    sbc ballUp
    sta $0200
    ldx $0200
    cpx #$E0
    beq FlipBallUp
    cpx #$08
    beq FlipBallDown

    lda $0203
    adc ballRight
    sbc ballLeft
    sta $0203
    ldx $0203
    cpx #$F8
    beq FlipBallLeft
    cpx #$08
    beq FlipBallRight

    rts

FlipBallUp:
    lda #0
    sta ballDown
    lda #1
    sta ballUp
    rts

FlipBallDown:
    lda #1
    sta ballDown
    lda #0
    sta ballUp
    rts

FlipBallLeft:
    lda #0
    sta ballRight
    lda #1
    sta ballLeft
    rts

FlipBallRight:
    lda #1
    sta ballRight
    lda #0
    sta ballLeft
    rts


    ; $E000 is where we put our color palette and our sprites
    .bank 1
    .org $E000
MainPalette:
    .db $0F,$20,$10,$00, $0F,$0F,$0F,$0F, $0F,$0F,$0F,$0F, $0F,$0F,$0F,$0F ; Background Palette
    .db $0F,$1C,$2B,$3A, $0F,$20,$10,$00, $0F,$0F,$0F,$0F, $0F,$0F,$0F,$0F ; Sprite Palette
Sprites:
    .include "sprites.asm"

    ; Bank 1 starts at $FFFA, where our interrupt vectors will go
    .org $FFFA
    .dw NMI   ; NMI vector
    .dw RESET ; Reset vector
    .dw 0     ; IRQ vector

    ; Bank 2 starts at $0000, where our background and sprite data will go
    .bank 2
    .org $0000
    .incbin "graphics.chr"