var bufferList = new Arm64InstructionBufferByList();
var asm = new Arm64Assembler(bufferList);

// // Main entry point
// _start:
var labelStart = asm.CreateLabelId("_start");
asm.BindLabel(labelStart);
//     mov     x0, #5         // Call sum_loop(5)
asm.MOVZ(X0, 5);
//     bl      sum_loop       // Call the function, result in x0
var labelSumLoop = asm.CreateLabelId("sum_loop");
asm.BL(labelSumLoop);
// 
//     // Do something with result (for now, just returning)
//     ret                    // Return from _start (normally would return to a caller)
asm.RET();
// 
// 
// // Function: sum_loop(x0)
// // - Takes x0 as the loop limit
// // - Returns the sum in x0
// sum_loop:
asm.BindLabel(labelSumLoop);
//     mov     x1, #0         // Accumulator (sum)
asm.MOVZ(X1, 0);
//     mov     x2, #0         // Counter
asm.MOVZ(X2, 0);
// 
// loop_start:
var labelLoopStart = asm.CreateLabelId("loop_start");
asm.BindLabel(labelLoopStart);
//     add     x1, x1, x2     // Add counter (x2) to sum (x1)
asm.ADD(X1, X1, X2);
//     add     x2, x2, #1     // Increment counter
asm.ADD(X2, X2, 1);
// 
//     cmp     x2, x0         // Compare counter with limit
asm.CMP(X2, X0);
//     blt     loop_