/*
split_bytes(n)
--------------
Splits a 32-bit unsigned integer into its four bytes.
Layout (little-endian order):
byte[0] = lowest 8 bits
byte[1] = next 8 bits
byte[2] = next 8 bits
byte[3] = highest 8 bits
Uses bitwise AND and shifts:
n & 0xFF → extract lowest byte
(n >> 8) & 0xFF → extract next byte
...
*/
def split_bytes(n: Int): Array[Int] = {
Array(
n & 0xFF, // lowest byte
(n >> 8) & 0xFF,
(n >> 16) & 0xFF,
(n >> 24) & 0xFF // highest byte
)
}
/*
print_bits(label, value)
------------------------
Prints an 8-bit or 32-bit value in binary.
Uses value.toBinaryString and manual zero-padding.
*/
def print_bits(label: String, value: Int, bits: Int): Unit = {
val binary = {
val raw = value.toBinaryString
if (raw.length < bits)
"0" * (bits - raw.length) + raw
else raw
}
println(s"$label ($bits bits): $binary")
}
@main def main(): Unit = {
val value: Int = 3298312
val bytes: Array[Int] = split_bytes(value)
println("Bytes (little-endian order):")
for (i <- bytes.indices) {
println(s"byte[$i]: ${bytes(i)}")
}
println("\nBit representation:")
// Print full 32-bit value
print_bits("Full value", value, 32)
// Print each byte in binary
for (i <- bytes.indices) {
print_bits(s"byte[$i]", bytes(i), 8)
}
}
/*
run:
Bytes (little-endian order):
byte[0]: 8
byte[1]: 84
byte[2]: 50
byte[3]: 0
Bit representation:
Full value (32 bits): 00000000001100100101010000001000
byte[0] (8 bits): 00001000
byte[1] (8 bits): 01010100
byte[2] (8 bits): 00110010
byte[3] (8 bits): 00000000
*/
