samples/vic2.asm at master · c128lib/samples · GitHub

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#importonce
.segmentdef Vic2 [start=$1c01]
.segment Vic2

c128lib_BasicUpstart128($1c10)

.label SCREEN_RAM = $0400
.label COMMODORE_PTR = SCREEN_RAM + $3f8

.namespace Vic2 {
* = $1c10 "Entry"
Entry: {
    SetupInterrupt()

// Clean screen
    jsr c128lib.Kernal.CINT

// Changing border/bg color
    c128lib_SetBorderAndBackgroundColor(BLACK, BLACK)

// Setting up sprite 0
    lda #SPRITES_OFFSET.COMMODORE
    sta COMMODORE_PTR

    c128lib_SpriteColor(0, RED)

    c128lib_SpriteMultiColor0(BLUE)
    c128lib_SpriteMultiColor1(DARK_GRAY)

    c128lib_SpriteEnableMulticolor(c128lib.Vic2.SPRITE_MASK_0 | c128lib.Vic2.SPRITE_MASK_1)

// Positioning sprite 0
    c128lib_SetSpritePositionWithShadow(0, 100, 100)

    c128lib_SpriteEnable(c128lib.Vic2.SPRITE_MASK_0)

    IsReturnPressedAndReleased()

// Moving sprite 0
    c128lib_SpriteMove(0, 4, c128lib.Vic2.SPRITE_MAIN_DIR_RIGHT, $7f00, $0000)

    IsReturnPressedAndReleased()

// Setting up sprite 1
    lda #SPRITES_OFFSET.COMMODORE
    sta COMMODORE_PTR + 1

    c128lib_SpriteColor(1, YELLOW)

// Positioning sprite 1
    c128lib_SetSpritePositionWithShadow(1, 110, 110)

    c128lib_SpriteEnable(c128lib.Vic2.SPRITE_MASK_1)

    IsReturnPressedAndReleased()

// Moving sprite 1
    c128lib_SpriteMove(1, 3, c128lib.Vic2.SPRITE_MAIN_DIR_LEFT, $7f00, $0000)

    rts
}

CollisionIrq: {
    lda c128lib.Vic2.IRR
    sta c128lib.Vic2.IRR

    lda c128lib.Vic2.SPRITE_2S_COLLISION
    beq !Done+
    inc $d020
  !Done:
    jmp $fa65
}

.macro SetupInterrupt() {
    sei
    lda #$7f
    sta c128lib.Cia.CIA1_IRQ_CONTROL
    lda #<CollisionIrq
    sta $0314
    lda #>CollisionIrq
    sta $0315

    lda #$30
    sta c128lib.Vic2.RASTER
    lda c128lib.Vic2.CONTROL_1
    and #$7f
    sta c128lib.Vic2.CONTROL_1

    lda #$05
    sta c128lib.Vic2.IMR
    sta c128lib.Vic2.IRR
    cli
}

#import "keyboard-helper.asm"

* = $2000 "Sprites"
SPRITES:
.import binary "./assets/sprites.bin"

SPRITES_OFFSET: {
  .label COMMODORE = (SPRITES / 64)
}

}

#import "./common/lib/common-global.asm"
#import "./common/lib/kernal.asm"
#import "./chipset/lib/cia.asm"
#import "./chipset/lib/sprites-global.asm"
#import "./chipset/lib/vic2.asm"
#import "./chipset/lib/vic2-global.asm"