89 lines
1.3 KiB
Text
89 lines
1.3 KiB
Text
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; "Rainbow with glitter" demo
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; for "FastLED6502"
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;
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; Runs on an Apple ][, ][+, //e, or //gs
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;
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; Supports APA102, Adafruit DotStar,
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; LPD8806, and WS2801 LED strips.
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;
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; LED strip connects to game port pins,
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; see FastLED6502.s65 for details.
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;
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; Mark Kriegsman, February 2015
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#define NUM_LEDS 100
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#define BRIGHTNESS 64
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#define CHIPSET APA102
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#define DATA_PIN 14
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#define CLOCK_PIN 5
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* = $6000
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#include "FastLED6502.s65"
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#include "AppleII.s65"
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gHue .byt 0
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gHueDelta .byt 17
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gHueSpeed .byt 7
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Setup
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lda #0
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sta gHue
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Loop
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lda gHue
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clc
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adc gHueSpeed
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sta gHue
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ldx gHue
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ldy gHueDelta
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; Fill RGB array with HSV rainbow
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jsr FastLED_FillRainbow_XY
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; Use master brightness control
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lda #BRIGHTNESS
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sta FastLED_Brightness
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CheckOpenApple
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bit OpenApple
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bpl CheckSolidApple
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; Add glitter if requested
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jsr AddGlitter
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CheckSolidApple
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bit SolidApple
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bpl DoDisplay
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; Pulse brightness if requested
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jsr PulseBrightness
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DoDisplay
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; This is where the magic happens
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jsr FastLED_Show
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jmp Loop
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AddGlitter
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ldy #3
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MaybeAdd1Glitter
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jsr FastLED_Random8
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cmp FastLED_NumPixels
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bcs SkipThis1Glitter
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tax
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lda #$FF
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sta ledsR,x
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sta ledsG,x
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sta ledsB,x
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SkipThis1Glitter
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dey
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bne MaybeAdd1Glitter
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rts
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PulseBrightness
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lda #13
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jsr FastLED_Beat8
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clc
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adc #12
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bcc PulseBright1
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lda #$FF
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PulseBright1
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sta FastLED_Brightness
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rts
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