美元结尾的字符串 [英] dollar-terminated strings

问题描述

在我的汇编语言课，我们的第一项任务是写一个程序，打印出DOS简单美元结尾的字符串。它看起来是这样的：

In my assembly language class, our first assignment was to write a program to print out a simple dollar-terminated string in DOS. It looked something like this:

BITS 32
    global _main

section .data
    msg db "Hello, world!", 13, 10, ’$’

section .text
_main:
mov ah, 9
mov edx, msg
int 21h
ret

据我了解，$符号用于像空确实在C.但我做，如果我想提出一个美元符号的字符串（如我想打印出它的成本$ 30什么终止刺痛）？这似乎是一个简单的问题，但我的教授不知道答案，似乎我不使用谷歌搜索来找到它。

As I understand it, the $ sign serves to terminate the sting like null does in C. But what do I do if I want to put a dollar sign in the string (like I want to print out "it costs $30")? This seems like a simple question, but my professor didn't know the answer and I don't seem to find it using a google search.

推荐答案

您不能使用DOS的×09 服务以显示 $ 的迹象，你需要使用 0×02 。请参见这里。

You can't use DOS's 0x09 service to display $ signs, you'll need to use 0x02. See here.

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