bulb

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; bulb - BlinkenArea ultimate logo board
; version 1.1.0 date 2012-06-10
; Copyright (C) 2011-2012 Stefan Schuermans <stefan@blinkenarea.org>
; Copyleft: GNU public license - http://www.gnu.org/copyleft/gpl.html
; ATtiny2313A, clock frequency: 8 MHz (internal oscillator)
; PA0: unused
; PA1: unused
; PA2: reset
; PB0: column 0 output (output, low)
; PB1: column 1 output (output, low)
; PB2: column 2 output (output, low)
; PB3: column 3 output (output, low)
; PB4: column 4 output (output, low)
; PB5: column 5 output (output, low)
; PB6: column 6 output (output, low)
; PB7: unused (input, pull-up enabled)
; PD0: row 0 output (output, high)
; PD1: row 1 output (output, high)
; PD2: row 2 output (output, high)
; PD3: row 3 output (output, high)
; PD4: row 4 output (output, high)
; PD5: row 5 output (output, high)
; PD6: mode switch (input, pull-up enabled)
.INCLUDE        "tn2313def.inc"
; IO pins
.equ    COL_PORT                =       PORTB   ; column outputs
.equ    ROW_PORT                =       PORTD   ; row outputs
.equ    MODE_SW_PIN             =       PIND
.equ    MODE_SW_BIT             =       6
; general purpose registers
.def    TMP                     =       r16
.def    CNT                     =       r17
.def    DATA                    =       r18
; current mode
.def    MODE                    =       r19
.equ    MODE_ALL                =       0       ; play all animations
.equ    MODE_SINGLE             =       1       ; play single animation only
.equ    MODE_UNKNOWN            =       0xFF    ; unknown mode
 
 
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