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Move wide with zero moves an optionally-shifted 16-bit immediate value to a register.

用零移动宽值将可选移位的16位即时值移动到寄存器。即把立即数移动寄存器前先把寄存器清零。

32-bit variant
    MOVZ <Wd>, #<imm>{, LSL #<shift>}

64-bit variant
    MOVZ <Xd>, #<imm>{, LSL #<shift>}

Operation
    bits(datasize) result; 
    result = Zeros(); 
    result<pos+15:pos> = imm16; 
    X[d] = result; 

/* msg.s */

        .data
msg:
        .ascii "hello asm!\n"
len = . - msg

        .text
        .global _start

_start:
        movz x8, #64
        movz x0, #0
        ldr x1, =msg
        ldr x2, =len
        #movz x2, #13
        svc #0

# aarch64-linux-gcc msg.s -o msg -nostdlib