Binary to Decimal

A null-terminated string at x5000 contains only '0' and '1' characters representing a binary number (e.g., "1101"). Convert this to its decimal value and store the result at x6000. The binary number will be at most 8 bits (value 0-255).

Requirements:
• The string contains only ASCII '0' (x30) and '1' (x31) characters

• Convert the binary representation to its integer value

• Store the result at x6000

Algorithm: Process left to right. For each digit:

result = result * 2 + digit

Example: "1101"
• Start: result = 0

• Read '1': result = 0 * 2 + 1 = 1

• Read '1': result = 1 * 2 + 1 = 3

• Read '0': result = 3 * 2 + 0 = 6

• Read '1': result = 6 * 2 + 1 = 13

Key insight: Multiplication by 2 is just ADD R0, R0, R0 (adding a number to itself).