Jartza

/*
 * Common bit handling macros for AVR (avr-gcc)
 *
 * Examples:
 *
 * #define LED_DIR BITP(DDRB, PB4) // LED_DIR is "variable" pointing to single bit (PB4) in DDRB
 * #define LED_STATE BITP(PORTB, PB4) // LED_STATE points to single bit (PB4) in PORTB
 * LED_DIR = DIR_OUT; // Set pin as output
 * LED_STATE = LEVEL_HIGH; // Switch LED on
 * 

Jartza

/*
 * Struct to handle bits in registers
 */
typedef struct {
	uint8_t b0:1;
	uint8_t b1:1;
	uint8_t b2:1;
	uint8_t b3:1;
	uint8_t b4:1;
	uint8_t b5:1;

Jartza

OBJECTS    = main.o task.o
DEVICE     = attiny85
CLOCK      = 8000000
PROGRAMMER = -c usbasp
FUSES      = -U lfuse:w:0xe2:m	 -U hfuse:w:0xDF:m -U efuse:w:0xFF:m -B 12
AVRDUDE = avrdude $(PROGRAMMER) -p $(DEVICE)
COMPILE = avr-gcc -Wall -Os -DF_CPU=$(CLOCK) -mmcu=$(DEVICE)

all:	main.hex

Jartza

t=require('fs').readFileSync("triangle.txt","utf8").trim().split("\n");for(f in t)i=t[f]=t[f--].split(" ");for(;1+f;)for(s in w=t[f--])i[s]=+w[s]+Math.max(i[s],i[++s]);console.log(i[0])

Jartza

/* Name: uart.c
 * Author: Jari Tulilahti
 *
 * UART TEST
 */

#include <avr/io.h>
#include <avr/interrupt.h>

/* Helpers */

Jartza

#include <avr/io.h>

start:
    sbi _SFR_IO_ADDR(DDRB), 4

blink:
    sbi _SFR_IO_ADDR(PINB), 4
    ldi ZH, 20

loop:

Jartza

t=require('fs').readFileSync("tree.txt","utf8").split("\n");for(f in t)i=t[f]=t[f--].split(" ");for(;f;)for(s in w=t[f--])i[s]=+w[s]+Math.max(i[s],i[++s]);console.log(i[0])