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neopixel.pio
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neopixel.pio
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; MIT License
;
; Copyright (c) 2023-2024 awawa-dev
;
; https://github.com/awawa-dev/HyperSerialPico
;
; Permission is hereby granted, free of charge, to any person obtaining a copy
; of this software and associated documentation files (the "Software"), to deal
; in the Software without restriction, including without limitation the rights
; to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
; copies of the Software, and to permit persons to whom the Software is
; furnished to do so, subject to the following conditions:
;
; The above copyright notice and this permission notice shall be included in all
; copies or substantial portions of the Software.
;
; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
; IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
; FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
; AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
; LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
; SOFTWARE.
.program neopixel
.side_set 1
.wrap_target
bitloop:
out x, 1 side 0 [4]
jmp !x do_zero side 1 [2]
do_one:
jmp bitloop side 1 [3]
do_zero:
nop side 0 [3]
.wrap
.program neopixel_parallel
.wrap_target
out x, 8
mov pins, !null [2]
mov pins, x [3]
mov pins, null [3]
.wrap