886 lines
18 KiB
Plaintext
886 lines
18 KiB
Plaintext
EVENT__start = 1
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EVENT__postframe = 1
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EVENT__preframe = 1
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EVENT__kernel = 1
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EVENT__scanline = 1
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EVENT__joyleft = 1
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EVENT__joyright = 1
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EVENT__joyup = 1
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EVENT__joydown = 1
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EVENT__prekernel = 1
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EVENT__SetHorizPos = 1
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EVENT__AddBCD4 = 1
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EVENT__AddBCD2 = 1
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EVENT__SubBCD2 = 1
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.scope Main
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.zeropage
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Sprite_bitmap_b0:
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.res 1
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.res 1
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.res 1
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.res 1
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HasColormap_colormap_b0:
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.res 1
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.res 1
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.res 1
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.res 1
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HasXpos_xpos_b0:
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.res 1
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.res 1
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.res 1
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.res 1
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HasYpos_ypos_b0:
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.res 1
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.res 1
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.res 1
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.res 1
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SpriteSlot_sprite_b0:
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.res 1
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.res 1
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.res 1
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.res 1
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BCDScore6_digits_b0:
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.res 1
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BCDScore6_digits_b8:
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.res 1
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BCDScore6_digits_b16:
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.res 1
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TEMP:
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Kernel2Sprite__2__tmp:
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Joystick__3__tmp:
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SpriteHider__9__tmp:
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.res 1
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SpriteShuffler__8__tmp:
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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Kernel6Digit__10__tmp:
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.res 1
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.code
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PFColor_pfcolor_b0:
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.byte 60
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BGColor_bgcolor_b0:
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.byte 2
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.byte 160
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KernelSection_lines_b0:
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.byte 168
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Bitmap_bitmapdata_b0:
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.byte <(Bitmap_bitmapdata_e2_b0+31)
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.byte <(Bitmap_bitmapdata_e3_b0+31)
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.byte <(Bitmap_bitmapdata_e4_b0+31)
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.byte <(Bitmap_bitmapdata_e5_b0+31)
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.byte <(Bitmap_bitmapdata_e6_b0+31)
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Bitmap_bitmapdata_b8:
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.byte >(Bitmap_bitmapdata_e2_b0+31)
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.byte >(Bitmap_bitmapdata_e3_b0+31)
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.byte >(Bitmap_bitmapdata_e4_b0+31)
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.byte >(Bitmap_bitmapdata_e5_b0+31)
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.byte >(Bitmap_bitmapdata_e6_b0+31)
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Bitmap_bitmapdata_e2_b0:
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.byte 85
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.byte 119
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.byte 126
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.byte 124
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.byte 120
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.byte 112
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.byte 96
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.byte 64
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Bitmap_height_b0:
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.byte 7
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.byte 12
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.byte 12
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.byte 8
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.byte 8
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Colormap_colormapdata_b0:
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.byte <(Colormap_colormapdata_e2_b0+31)
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.byte <(Colormap_colormapdata_e3_b0+31)
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.byte <(Colormap_colormapdata_e4_b0+31)
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.res 1
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.res 1
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.byte <(Colormap_colormapdata_e7_b0+31)
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Colormap_colormapdata_b8:
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.byte >(Colormap_colormapdata_e2_b0+31)
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.byte >(Colormap_colormapdata_e3_b0+31)
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.byte >(Colormap_colormapdata_e4_b0+31)
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.res 1
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.res 1
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.byte >(Colormap_colormapdata_e7_b0+31)
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Colormap_colormapdata_e2_b0:
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.byte 24
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.byte 30
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.byte 28
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.byte 26
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.byte 24
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.byte 22
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.byte 20
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.byte 18
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Bitmap_bitmapdata_e3_b0:
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.byte 60
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.byte 126
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.byte 255
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.byte 195
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.byte 255
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.byte 255
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.byte 255
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.byte 187
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.byte 153
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.byte 255
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.byte 126
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.byte 60
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.byte 24
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Colormap_colormapdata_e3_b0:
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.byte 74
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.byte 76
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.byte 78
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.byte 78
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.byte 78
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.byte 78
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.byte 78
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.byte 78
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.byte 78
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.byte 78
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.byte 76
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.byte 74
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.byte 72
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Bitmap_bitmapdata_e4_b0:
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.byte 60
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.byte 126
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.byte 231
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.byte 219
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.byte 255
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.byte 255
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.byte 255
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.byte 153
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.byte 153
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.byte 255
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.byte 126
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.byte 60
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.byte 24
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Colormap_colormapdata_e4_b0:
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.byte 74
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.byte 76
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.byte 78
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.byte 78
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.byte 78
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.byte 78
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.byte 206
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.byte 206
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.byte 206
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.byte 142
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.byte 76
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.byte 74
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.byte 72
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Bitmap_bitmapdata_e5_b0:
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.byte 1
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.byte 1
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.byte 3
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.byte 7
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.byte 15
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.byte 31
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.byte 63
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.byte 255
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Bitmap_bitmapdata_e6_b0:
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.byte 24
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.byte 62
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.byte 255
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.byte 255
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.byte 255
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.byte 255
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.byte 62
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.byte 24
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Colormap_colormapdata_e7_b0:
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.byte 6
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.byte 3
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.byte 6
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.byte 9
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.byte 12
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.byte 14
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.byte 31
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.byte 63
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Sprite_plyrflags_b0:
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.byte 0
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.byte 3
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.byte 0
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.byte 0
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Main__INITDATA:
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.byte 1
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.byte 2
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.byte 0
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.byte 0
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.byte 1
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.byte 2
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.byte 0
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.byte 0
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.byte 50
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.byte 100
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.byte 80
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.byte 40
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.byte 150
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.byte 60
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.byte 90
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.byte 150
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.byte 0
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.byte 1
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.byte 2
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.byte 3
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.byte 0
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.byte 0
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.byte 0
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__Start:
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;;; start action Init__main_init__1
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.include "vcs-ca65.h"
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.macpack longbranch
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.define PAL 0
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.segment "STARTUP"
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__NMI:
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__Reset:
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__BRK:
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CLEAN_START
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ldy #23
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: lda Main__INITDATA-1,y
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sta Sprite_bitmap_b0-1,y
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dey
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bne :-
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;;; start action FrameLoop__start__3
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FrameLoop__start__4__NextFrame:
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FRAME_END
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FRAME_START
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;;; start action Kernel2Sprite__preframe__5
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; TODOO: can store KLINES in memory?
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.define KLINES #168
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.define KPAD 32
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; set height to zero in case no sprites
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lda #0
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sta Kernel2Sprite__2__tmp+8
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sta Kernel2Sprite__2__tmp+9
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;;; end action Kernel2Sprite__preframe__5
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;;; start action Kernel2Sprite__preframe__8
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ldy #0
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Kernel2Sprite__preframe__9____each:
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ldx SpriteSlot_sprite_b0,y
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; set player object flags
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lda Sprite_plyrflags_b0,x
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sta NUSIZ0,y
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sta REFP0,y
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; calculate screen height - ypos
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lda KLINES
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clc
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adc KPAD
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sec
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sbc HasYpos_ypos_b0,x
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sta Kernel2Sprite__2__tmp+11
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; calculate bitmap pointer
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stx Kernel2Sprite__2__tmp+12 ; save X (Sprite index)
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lda Sprite_bitmap_b0,x ; deref bitmap
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tax
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lda Bitmap_bitmapdata_b0,x
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sec
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sbc Kernel2Sprite__2__tmp+11
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sta Kernel2Sprite__2__tmp+0,y ; Y = sprite slot index
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lda Bitmap_bitmapdata_b8,x
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sbc #0
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sta Kernel2Sprite__2__tmp+2,y
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; get bitmap height
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lda Bitmap_height_b0,x
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sta Kernel2Sprite__2__tmp+8,y
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; calculate colormap pointer
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ldx Kernel2Sprite__2__tmp+12 ; restore X
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lda HasColormap_colormap_b0,x ; deref colormap
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tax
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lda Colormap_colormapdata_b0,x
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sec
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sbc Kernel2Sprite__2__tmp+11
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sta Kernel2Sprite__2__tmp+4,y
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lda Colormap_colormapdata_b8,x
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sbc #0
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sta Kernel2Sprite__2__tmp+6,y
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; save ypos
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ldx Kernel2Sprite__2__tmp+12 ; restore X
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lda HasYpos_ypos_b0,x
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sta Kernel2Sprite__2__tmp+10,y
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iny
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cpy #2
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jne Kernel2Sprite__preframe__9____each
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Kernel2Sprite__preframe__9____exit:
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;;; end action Kernel2Sprite__preframe__8
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;;; start action Kernel2Sprite__preframe__11
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; shuffle pointers into (MSB, LSB) byte order
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; L0 L1 H0 H1 -> L0 H0 L1 H1
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lda Kernel2Sprite__2__tmp+1
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ldy Kernel2Sprite__2__tmp+2
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sty Kernel2Sprite__2__tmp+1
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sta Kernel2Sprite__2__tmp+2
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lda Kernel2Sprite__2__tmp+5
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ldy Kernel2Sprite__2__tmp+6
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sty Kernel2Sprite__2__tmp+5
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sta Kernel2Sprite__2__tmp+6
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;;; end action Kernel2Sprite__preframe__11
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;;; start action Kernel2Sprite__preframe__13
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lda #160
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sta COLUBK
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;;; end action Kernel2Sprite__preframe__13
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;;; start action Kernel2Sprite__preframe__16
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;;; end action Kernel2Sprite__preframe__16
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;;; start action SetXPos__preframe__17
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ldy #0
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SetXPos__preframe__18____each:
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ldx SpriteSlot_sprite_b0,y
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lda HasXpos_xpos_b0,x
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jsr SetHorizPos__SetHorizPos__20
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iny
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cpy #2
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jne SetXPos__preframe__18____each
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SetXPos__preframe__18____exit:
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;;; end action SetXPos__preframe__17
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;;; start action SetXPos__preframe__22
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;;; end action SetXPos__preframe__22
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;;; start action Kernel6Digit__preframe__23
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Digit0 = Kernel6Digit__10__tmp+0
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Digit1 = Kernel6Digit__10__tmp+2
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Digit2 = Kernel6Digit__10__tmp+4
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Digit3 = Kernel6Digit__10__tmp+6
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Digit4 = Kernel6Digit__10__tmp+8
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Digit5 = Kernel6Digit__10__tmp+10
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Kernel6Digit__preframe__25__BCD0 = Kernel6Digit__10__tmp+12
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Kernel6Digit__preframe__25__BCD1 = Kernel6Digit__10__tmp+13
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Kernel6Digit__preframe__25__BCD2 = Kernel6Digit__10__tmp+14
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lda BCDScore6_digits_b0
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sta Kernel6Digit__preframe__25__BCD0
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lda BCDScore6_digits_b8
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sta Kernel6Digit__preframe__25__BCD1
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lda BCDScore6_digits_b16
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sta Kernel6Digit__preframe__25__BCD2
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ldx #0 ; leftmost bitmap
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ldy #2 ; start from most-sigificant BCD value
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Kernel6Digit__preframe__25__Loop:
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lda Kernel6Digit__preframe__25__BCD0,y ; get BCD value
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and #$f0 ; isolate high nibble (* 16)
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lsr ; shift right 1 bit (* 8)
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clc
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adc #<FontTable
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sta Digit0,x ; store pointer lo byte
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lda #>FontTable
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adc #0
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sta Digit0+1,x ; store pointer hi byte
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inx
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inx ; next bitmap pointer
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lda Kernel6Digit__preframe__25__BCD0,y ; get BCD value (again)
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and #$f ; isolate low nibble
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asl
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asl
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asl ; * 8
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clc
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adc #<FontTable
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sta Digit0,x ; store pointer lo byte
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lda #>FontTable
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adc #0
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sta Digit0+1,x ; store pointer hi byte
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inx
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inx ; next bitmap pointer
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dey ; next BCD value
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bpl Kernel6Digit__preframe__25__Loop ; repeat until < 0
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;;; end action Kernel6Digit__preframe__23
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;;; start action SetXPos__prekernel__26
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sta WSYNC
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sta HMOVE
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SLEEPR 24
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sta HMCLR
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;;; end action SetXPos__prekernel__26
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KERNEL_START
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;;; start action Kernel2Sprite__kernel__28
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ldy #0
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sty VDELP0
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iny
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sty VDELP1
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;;; end action Kernel2Sprite__kernel__28
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jsr Kernel2Sprite__kernel__31
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;;; start action Kernel2Sprite__kernel__40
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lda #0
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sta GRP0
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sta GRP1
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sta GRP0
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sta GRP1
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;;; end action Kernel2Sprite__kernel__40
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;;; start action Kernel6Digit__kernel__42
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lda #60
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sta COLUP0
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sta COLUP1
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lda #3
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sta NUSIZ0
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sta NUSIZ1
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; set horizontal position of player objects
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sta WSYNC
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sta HMCLR
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SLEEPR 24
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sta RESP0
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sta RESP1
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lda #$10
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sta HMP1
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sta WSYNC
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sta HMOVE
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SLEEPR 24 ; wait 24 cycles between write to HMOVE and HMxxx
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sta HMCLR
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lda #1
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sta VDELP0
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sta VDELP1
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;;; end action Kernel6Digit__kernel__42
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jsr Kernel6Digit__kernel__45
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KERNEL_END
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;;; start action FrameLoop__postframe__48
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lsr SWCHB ; test Game Reset switch
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bcs FrameLoop__postframe__49__NoStart
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FrameLoop__postframe__49__NoStart:
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;;; end action FrameLoop__postframe__48
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;;; start action Joystick__postframe__50
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; 2 control inputs share a single byte, 4 bits each
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lda SWCHA
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sta Joystick__3__tmp+0
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;;; end action Joystick__postframe__50
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;;; start action Joystick__postframe__52
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ldx #0
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Joystick__postframe__53____each:
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asl Joystick__3__tmp+0
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.ifdef EVENT__joyright
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bcs Joystick__postframe__54__SkipMoveRight
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;;; start action MoveJoyX__joyright__55
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lda HasXpos_xpos_b0,x
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clc
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adc #1
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cmp #150
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bcs MoveJoyX__joyright__57__nomove
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sta HasXpos_xpos_b0,x
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MoveJoyX__joyright__57__nomove:
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;;; end action MoveJoyX__joyright__55
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Joystick__postframe__54__SkipMoveRight:
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.endif
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asl Joystick__3__tmp+0
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.ifdef EVENT__joyleft
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bcs Joystick__postframe__54__SkipMoveLeft
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;;; start action MoveJoyX__joyleft__58
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lda HasXpos_xpos_b0,x
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sec
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sbc #1
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bcc MoveJoyX__joyleft__60__nomove
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sta HasXpos_xpos_b0,x
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MoveJoyX__joyleft__60__nomove:
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;;; end action MoveJoyX__joyleft__58
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Joystick__postframe__54__SkipMoveLeft:
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.endif
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asl Joystick__3__tmp+0
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.ifdef EVENT__joydown
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bcs Joystick__postframe__54__SkipMoveDown
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;;; start action MoveJoyY__joydown__61
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lda HasYpos_ypos_b0,x
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clc
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adc #1
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cmp #220
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bcs MoveJoyY__joydown__63__nomove
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sta HasYpos_ypos_b0,x
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MoveJoyY__joydown__63__nomove:
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;;; end action MoveJoyY__joydown__61
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Joystick__postframe__54__SkipMoveDown:
|
|
.endif
|
|
asl Joystick__3__tmp+0
|
|
.ifdef EVENT__joyup
|
|
bcs Joystick__postframe__54__SkipMoveUp
|
|
|
|
;;; start action MoveJoyY__joyup__64
|
|
|
|
lda HasYpos_ypos_b0,x
|
|
sec
|
|
sbc #1
|
|
bcc MoveJoyY__joyup__66__nomove
|
|
sta HasYpos_ypos_b0,x
|
|
MoveJoyY__joyup__66__nomove:
|
|
|
|
;;; end action MoveJoyY__joyup__64
|
|
|
|
Joystick__postframe__54__SkipMoveUp:
|
|
.endif
|
|
|
|
inx
|
|
cpx #2
|
|
jne Joystick__postframe__53____each
|
|
Joystick__postframe__53____exit:
|
|
|
|
;;; end action Joystick__postframe__52
|
|
|
|
;;; start action SpriteShuffler__postframe__67
|
|
|
|
; load two sprite slots at left side of array
|
|
lda SpriteSlot_sprite_b0
|
|
sta SpriteShuffler__8__tmp+0
|
|
lda SpriteSlot_sprite_b0+1
|
|
sta SpriteShuffler__8__tmp+1
|
|
; move two slots to the left
|
|
ldx #0
|
|
SpriteShuffler__postframe__69__loop:
|
|
lda SpriteSlot_sprite_b0+2,x
|
|
sta SpriteSlot_sprite_b0,x
|
|
inx
|
|
cpx #4-2
|
|
bne SpriteShuffler__postframe__69__loop
|
|
; store two sprite slots at right side of array
|
|
lda SpriteShuffler__8__tmp+0
|
|
sta SpriteSlot_sprite_b0+4-2
|
|
lda SpriteShuffler__8__tmp+1
|
|
sta SpriteSlot_sprite_b0+4-1
|
|
|
|
;;; end action SpriteShuffler__postframe__67
|
|
|
|
;;; start action SpriteHider__postframe__70
|
|
|
|
lda #4-1
|
|
sta SpriteHider__9__tmp+0
|
|
|
|
;;; end action SpriteHider__postframe__70
|
|
|
|
;;; start action SpriteHider__postframe__73
|
|
|
|
ldy #0
|
|
SpriteHider__postframe__74____each:
|
|
ldx SpriteSlot_sprite_b0,y
|
|
|
|
lda HasYpos_ypos_b0,x
|
|
cmp #192
|
|
bcc SpriteHider__postframe__75__skip
|
|
; swap this sprite slot with slot at end of array
|
|
lda SpriteSlot_sprite_b0,y
|
|
pha
|
|
ldx SpriteHider__9__tmp+0 ; clobbers X, but no longer used
|
|
lda SpriteSlot_sprite_b0,x
|
|
sta SpriteSlot_sprite_b0,y
|
|
pla
|
|
sta SpriteSlot_sprite_b0,x
|
|
dec SpriteHider__9__tmp+0
|
|
SpriteHider__postframe__75__skip:
|
|
|
|
iny
|
|
cpy #2
|
|
jne SpriteHider__postframe__74____each
|
|
SpriteHider__postframe__74____exit:
|
|
|
|
;;; end action SpriteHider__postframe__73
|
|
|
|
;;; start action JoyButton__postframe__76
|
|
|
|
ldx #0
|
|
JoyButton__postframe__77____each:
|
|
|
|
lda INPT4,x ;read button input
|
|
bmi JoyButton__postframe__78__NotPressed
|
|
|
|
JoyButton__postframe__78__NotPressed:
|
|
|
|
inx
|
|
cpx #2
|
|
jne JoyButton__postframe__77____each
|
|
JoyButton__postframe__77____exit:
|
|
|
|
;;; end action JoyButton__postframe__76
|
|
|
|
;;; start action Enemies__postframe__79
|
|
|
|
ldx #0
|
|
Enemies__postframe__80____each:
|
|
|
|
inc HasYpos_ypos_b0+2,x
|
|
; inc HasYpos_ypos_b0+2,x
|
|
|
|
inx
|
|
cpx #2
|
|
jne Enemies__postframe__80____each
|
|
Enemies__postframe__80____exit:
|
|
|
|
;;; end action Enemies__postframe__79
|
|
|
|
jmp FrameLoop__start__4__NextFrame ; loop to next frame
|
|
|
|
;;; end action FrameLoop__start__3
|
|
; start main routine
|
|
.segment "VECTORS"
|
|
ZeroByte: .byte $00
|
|
Return: .byte $60
|
|
VecNMI:
|
|
VecReset: .word __Reset
|
|
VecBRK: .word __BRK
|
|
.code
|
|
|
|
;;; end action Init__main_init__1
|
|
.rodata
|
|
__ALIGNORIGIN:
|
|
.rodata
|
|
SetHorizPos__SetHorizPos__20:
|
|
|
|
; SetHorizPos routine
|
|
; A = X coordinate
|
|
; Y = player number (0 or 1)
|
|
sec ; set carry flag
|
|
sta WSYNC ; start a new line
|
|
:
|
|
sbc #15 ; subtract 15
|
|
bcs :- ; branch until negative
|
|
eor #7 ; calculate fine offset
|
|
asl
|
|
asl
|
|
asl
|
|
asl
|
|
sta HMP0,y ; set fine offset
|
|
sta RESP0,y ; fix coarse position
|
|
sta WSYNC ; won't overrun if X < 150
|
|
|
|
rts
|
|
|
|
.assert >(SetHorizPos__SetHorizPos__20) = >(*), error, "SetHorizPos__SetHorizPos__20 crosses a page boundary!"
|
|
|
|
.assert (* - SetHorizPos__SetHorizPos__20) <= 22, error, .sprintf("SetHorizPos__SetHorizPos__20 does not fit in 22 bytes, it took %d!", (* - SetHorizPos__SetHorizPos__20))
|
|
.rodata
|
|
Kernel2Sprite__kernel__31:
|
|
|
|
ldy #168
|
|
Kernel2Sprite__kernel__33__LVScan:
|
|
|
|
;;; start action Kernel2Sprite__scanline__34
|
|
|
|
; draw player 0
|
|
lda Kernel2Sprite__2__tmp+8 ; height
|
|
dcp Kernel2Sprite__2__tmp+10 ; ypos
|
|
bcs Kernel2Sprite__scanline__35__DoDraw1
|
|
lda #0
|
|
.byte $2C
|
|
Kernel2Sprite__scanline__35__DoDraw1:
|
|
lda (Kernel2Sprite__2__tmp+0),y
|
|
; .if 0 = 0 ; TODO: configurable?
|
|
sta WSYNC
|
|
; .endif
|
|
sta GRP0
|
|
lda (Kernel2Sprite__2__tmp+4),y
|
|
sta COLUP0
|
|
; draw player 1
|
|
lda Kernel2Sprite__2__tmp+9 ; height
|
|
dcp Kernel2Sprite__2__tmp+11 ; ypos
|
|
bcs Kernel2Sprite__scanline__35__DoDraw2
|
|
lda #0
|
|
.byte $2C
|
|
Kernel2Sprite__scanline__35__DoDraw2:
|
|
lda (Kernel2Sprite__2__tmp+2),y
|
|
sta GRP1
|
|
lda (Kernel2Sprite__2__tmp+6),y
|
|
sta COLUP1
|
|
|
|
;;; end action Kernel2Sprite__scanline__34
|
|
|
|
;;; start action Kernel2Sprite__scanline__36
|
|
|
|
;;; end action Kernel2Sprite__scanline__36
|
|
|
|
dey ; next scanline
|
|
|
|
;;; start action Kernel2Sprite__scanline__37
|
|
|
|
; draw player 0
|
|
lda Kernel2Sprite__2__tmp+8 ; height
|
|
dcp Kernel2Sprite__2__tmp+10 ; ypos
|
|
bcs Kernel2Sprite__scanline__38__DoDraw1
|
|
lda #0
|
|
.byte $2C
|
|
Kernel2Sprite__scanline__38__DoDraw1:
|
|
lda (Kernel2Sprite__2__tmp+0),y
|
|
; .if 1 = 0 ; TODO: configurable?
|
|
sta WSYNC
|
|
; .endif
|
|
sta GRP0
|
|
lda (Kernel2Sprite__2__tmp+4),y
|
|
sta COLUP0
|
|
; draw player 1
|
|
lda Kernel2Sprite__2__tmp+9 ; height
|
|
dcp Kernel2Sprite__2__tmp+11 ; ypos
|
|
bcs Kernel2Sprite__scanline__38__DoDraw2
|
|
lda #0
|
|
.byte $2C
|
|
Kernel2Sprite__scanline__38__DoDraw2:
|
|
lda (Kernel2Sprite__2__tmp+2),y
|
|
sta GRP1
|
|
lda (Kernel2Sprite__2__tmp+6),y
|
|
sta COLUP1
|
|
|
|
;;; end action Kernel2Sprite__scanline__37
|
|
|
|
;;; start action Kernel2Sprite__scanline__39
|
|
|
|
;;; end action Kernel2Sprite__scanline__39
|
|
|
|
dey ; next scanline
|
|
bne Kernel2Sprite__kernel__33__LVScan ; repeat until out of lines
|
|
|
|
rts
|
|
|
|
.assert >(Kernel2Sprite__kernel__31) = >(*), error, "Kernel2Sprite__kernel__31 crosses a page boundary!"
|
|
|
|
.if <(* - __ALIGNORIGIN) > 256-72
|
|
.align $100
|
|
.endif
|
|
.rodata
|
|
Kernel6Digit__kernel__45:
|
|
|
|
; Display the resulting 48x8 bitmap
|
|
; using the Digit0-5 pointers.
|
|
Kernel6Digit__kernel__47__LoopCount = Kernel6Digit__10__tmp+12
|
|
Kernel6Digit__kernel__47__Temp = Kernel6Digit__10__tmp+13
|
|
|
|
lda #2
|
|
sta WSYNC
|
|
sta COLUBK
|
|
lda #7
|
|
sta Kernel6Digit__kernel__47__LoopCount
|
|
SLEEPR 20 ; TODO?
|
|
:
|
|
ldy Kernel6Digit__kernel__47__LoopCount ; counts backwards
|
|
lda (Digit0),y ; load B0 (1st sprite byte)
|
|
sta GRP0 ; B0 -> [GRP0]
|
|
lda (Digit1),y ; load B1 -> A
|
|
sta GRP1 ; B1 -> [GRP1], B0 -> GRP0
|
|
sta WSYNC ; sync to next scanline
|
|
lda (Digit2),y ; load B2 -> A
|
|
sta GRP0 ; B2 -> [GRP0], B1 -> GRP1
|
|
lda (Digit5),y ; load B5 -> A
|
|
sta Kernel6Digit__kernel__47__Temp ; B5 -> temp
|
|
lda (Digit4),y ; load B4
|
|
tax ; -> X
|
|
lda (Digit3),y ; load B3 -> A
|
|
ldy Kernel6Digit__kernel__47__Temp ; load B5 -> Y
|
|
sta GRP1 ; B3 -> [GRP1]; B2 -> GRP0
|
|
stx GRP0 ; B4 -> [GRP0]; B3 -> GRP1
|
|
sty GRP1 ; B5 -> [GRP1]; B4 -> GRP0
|
|
sta GRP0 ; ?? -> [GRP0]; B5 -> GRP1
|
|
dec Kernel6Digit__kernel__47__LoopCount ; go to next line
|
|
bpl :- ; repeat until < 0
|
|
|
|
lda #0 ; clear the sprite registers
|
|
sta WSYNC
|
|
sta GRP0
|
|
sta GRP1
|
|
sta GRP0
|
|
sta GRP1
|
|
sta COLUBK
|
|
|
|
rts
|
|
|
|
.assert >(Kernel6Digit__kernel__45) = >(*), error, "Kernel6Digit__kernel__45 crosses a page boundary!"
|
|
|
|
.assert (* - Kernel6Digit__kernel__45) <= 72, error, .sprintf("Kernel6Digit__kernel__45 does not fit in 72 bytes, it took %d!", (* - Kernel6Digit__kernel__45))
|
|
FontTable:
|
|
|
|
;;; start action FontTable__FontTable__82
|
|
|
|
; Font table for digits 0-9 (8x8 pixels)
|
|
;;{w:8,h:8,count:10,brev:1,flip:1};;
|
|
.byte $00,$3c,$66,$66,$76,$6e,$66,$3c,$00,$7e,$18,$18,$18,$38,$18,$18
|
|
.byte $00,$7e,$60,$30,$0c,$06,$66,$3c,$00,$3c,$66,$06,$1c,$06,$66,$3c
|
|
.byte $00,$06,$06,$7f,$66,$1e,$0e,$06,$00,$3c,$66,$06,$06,$7c,$60,$7e
|
|
.byte $00,$3c,$66,$66,$7c,$60,$66,$3c,$00,$18,$18,$18,$18,$0c,$66,$7e
|
|
.byte $00,$3c,$66,$66,$3c,$66,$66,$3c,$00,$3c,$66,$06,$3e,$66,$66,$3c
|
|
|
|
;;; end action FontTable__FontTable__82
|
|
|
|
.endscope
|
|
Main__Start = Main::__Start |