/*
Combine two 32-bit values into one 64-bit value.
- The high 32 bits are shifted left by 32 positions.
- The low 32 bits are OR'ed in.
TypeScript uses JavaScript's BigInt type to safely handle 64-bit integers.
*/
// ------------------------------------------------------------
// Function that combines two 32-bit integers into a 64-bit BigInt
// ------------------------------------------------------------
function combineTwo32bit(high: number, low: number): bigint {
// Convert both values to BigInt before shifting
const high64: bigint = BigInt(high);
const low64: bigint = BigInt(low);
// Shift the high part left by 32 bits and OR with the low part
const result: bigint = (high64 << 32n) | low64;
return result;
}
// ------------------------------------------------------------
// Function that prints a 64-bit BigInt in hex with leading zeros
// ------------------------------------------------------------
function printHex64(value: bigint): void {
// Convert to hex string and pad to 16 bytes (64 bits)
const hex: string = value.toString(16).toUpperCase().padStart(16, "0");
console.log("0x" + hex);
}
// ------------------------------------------------------------
// Main program logic
// ------------------------------------------------------------
function main(): void {
const high: number = 0x11223344; // Example high 32 bits
const low: number = 0x55667788; // Example low 32 bits
const combined: bigint = combineTwo32bit(high, low);
console.log("High 32 bits: 0x" + high.toString(16).toUpperCase().padStart(8, "0"));
console.log("Low 32 bits: 0x" + low.toString(16).toUpperCase().padStart(8, "0"));
// Replaced process.stdout.write with console.log
console.log("Combined 64-bit value:");
printHex64(combined);
}
main();
/*
run:
High 32 bits: 0x11223344
Low 32 bits: 0x55667788
Combined 64-bit value:
0x1122334455667788
*/
