;
; Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
;
; SPDX-License-Identifier: BSD-3-Clause
;

.program multi_pwm
.side_set 1

.wrap_target
    ;pull side 0                    ; Pull in the next DWord containing the pin states, and time counter
    ;out pins, 16 side 1            ; Immediately set the pins to their new state
    ;out y, 16 [1] side 0           ; Set the counter

    pull side 0                    ; Pull in the next DWord containing the pin states, and time counter
    out pins, 32 side 1            ; Immediately set the pins to their new state
    pull side 0
    out y, 32 side 0           ; Set the counter
count_check:
    jmp y-- delay side 0           ; Check if the counter is 0, and if so wrap around. If not decrement the counter and jump to the delay
.wrap

delay:
    jmp count_check [3] side 1     ; Wait a few cycles then jump back to the loop