Question & Answer: Need help coding in assembly code an SN74LS47N decoder to a seven segment display with an arduino eno 328p……

// 1 = LED on, 0 = LED off, in this order:

//                      Arduino pin: 2,3,4,5,6,7,8
byte seven_seg_digits[10][7] = { { 1,1,1,1,1,1,0 },  // = 0
{ 0,1,1,0,0,0,0 },  // = 1
{ 1,1,0,1,1,0,1 },  // = 2
{ 1,1,1,1,0,0,1 },  // = 3
{ 0,1,1,0,0,1,1 }, // = 4
{ 1,0,1,1,0,1,1 },  // = 5
{ 1,0,1,1,1,1,1 },  // = 6
{ 1,1,1,0,0,0,0 },  // = 7
{ 1,1,1,1,1,1,1 },  // = 8
{ 1,1,1,0,0,1,1 }   // = 9
};

void setup() {
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
writeDot(0); // start with the “dot” off
}

void writeDot(byte dot) {
digitalWrite(9, dot);
}

void sevenSegWrite(byte digit) {
byte pin = 2;
for (byte segCount = 0; segCount < 7; ++segCount) {
digitalWrite(pin, seven_seg_digits[digit][segCount]);
++pin;
}
}

void loop() {
for (byte count = 10; count > 0; –count) {
delay(1000);
sevenSegWrite(count – 1);
}
delay(4000);
}