38、汇编语言中的宏与条件汇编指令详解

汇编语言中的宏与条件汇编指令详解

1. 宏的示例程序

宏在汇编语言中是一种非常有用的工具，它可以将一系列指令封装起来，简化代码编写。下面我们通过一个名为 Wraps.asm 的示例程序来展示宏作为过程包装器的使用。

; Procedure Wrapper Macros        (Wraps.asm)
; This program demonstrates macros as wrappers
; for library procedures. Contents: mGotoxy, mWrite,
; mWriteString, mReadString, and mDumpMem.
INCLUDE Irvine32.inc
INCLUDE Macros.inc
; macro definitions
.data
array DWORD 1,2,3,4,5,6,7,8
firstName BYTE 31 DUP(?)
lastName  BYTE 31 DUP(?)
.code
main PROC
mGotoxy 0,0
mWrite <"Sample Macro Program",0dh,0ah>
; Input the user's name.
mGotoxy 0,5
mWrite "Please enter your first name: "
mReadString firstName
call Crlf
mWrite "Please enter your last name: "
mReadString lastName
call Crlf
; Display the user's name