/*
Combine two 32‑bit integers into one 64‑bit integer.
- The high 32 bits are shifted left by 32 positions.
- The low 32 bits are OR'ed into the lower half.
*/
object Combine32To64 {
// Function that combines two 32‑bit integers into a 64‑bit integer.
//
// Explanation:
// - Convert both values to Long (Scala's 64‑bit signed integer).
// - Shift the high part left by 32 bits.
// - OR the low part into the lower 32 bits.
def combineTwo32bit(high: Int, low: Int): Long = {
(high.toLong << 32) | (low.toLong & 0xFFFFFFFFL)
}
// Function that prints a 64‑bit value in uppercase hexadecimal
// with leading zeros.
def printHex64(value: Long): Unit = {
println(f"0x$value%016X")
}
def main(args: Array[String]): Unit = {
val high: Int = 0x11223344 // Example high 32 bits
val low: Int = 0x55667788 // Example low 32 bits
val combined: Long = combineTwo32bit(high, low)
println(f"High 32 bits: 0x$high%08X")
println(f"Low 32 bits: 0x$low%08X")
print("Combined 64-bit value: ")
printHex64(combined)
}
}
/*
run:
High 32 bits: 0x11223344
Low 32 bits: 0x55667788
Combined 64-bit value: 0x1122334455667788
*/
