气体中断 [英] Interrupt On GAS

问题描述

我正在尝试将我的简单程序从Intel语法转换为AT& T(以使用GAS进行编译).我已经成功转换了我的应用程序的很大一部分，但是int(中断)仍然出现错误.我的功能是这样的:

I'm trying to convert my simple program from Intel syntax to the AT&T(to compile it with GAS). I've successfully converted a big part of my application, but I'm still getting an error with the int(the interrupts). My function is like this:

printf:
    mov $0x0e, %ah
    mov $0x07, %bl

    nextchar:
       lodsb
       or %al, %al
       jz return
       int 10
       jmp nextchar

    return:
       ret

msg db "Welcome To Track!", 0Ah

但是当我编译它时，我得到了:

But when I compile it, I got this:

hello.S:汇编程序消息:
hello.S:13:错误:int'
hello.S:19: Error: no such instruction: msg db"Hello，World！"，0Ah'

hello.S: Assembler messages:
hello.S:13: Error: operand size mismatch for int'
hello.S:19: Error: no such instruction:msg db "Hello, World!",0Ah'

我需要做什么?

推荐答案

在GAS中，常量需要一个$.将该行更改为:

In GAS, constants need a $. Change that line to:

int $10

您的信息应该是:

msg: .byte "Welcome to Track!", 0x0a

甚至更好:

msg: .asciiz "Welcome to Track!\n" 

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