我的第一个汇编程序

功能：定义不定长参数子程序MyPrint，使用printf打印输出到控制台

实现：获取参数的个数，我是通过字符串中'%'字符个数确定的

 

;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; 使用 nmake 或下列命令进行编译和链接:; ml /c /coff Test.asm; rc Test.rc; Link /subsystem:console Test.obj Test.res;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.386.model flat,stdcalloption casemap:none;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; Include 文件定义;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>includewindows.incincludeuser32.incincludelibuser32.libincludekernel32.incincludelibkernel32.libincludelib msvcrt.lib printf PROTO C :ptr sbyte, :vararg ;DbgPrint PROTO C :ptr sbyte, :vararg ;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; 数据段;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.constszMsgdb 'yes', 0szFormatdb'ISR messageID %d %s (serviced=0x%2x)', 0;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; 代码段;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.codemain proc;local@iMsgID dd 0;local@szMsg:db 'yes', 0;local@iServiced:dd 1;local@szFormat:db 'ISR messageID %d %s (serviced=0x%2x)', 0pushebpmov ebp, espmovecx, 0 ;iMsgIDmovedx, 1 ;iServicedpushedxpushoffset szMsgpushecxpushoffset szFormatcallMyPrint addesp, 10hpop ebp retmain endpMyPrint procpushebpmovebp, espsubesp, 04hmoveax, dword ptr [ebp+08h]movecx, 1hL10:cmpbyte ptr [eax], 0jeL30cmpbyte ptr [eax], 025hjeL20inceaxjmpL10L20:incecxinceaxjmpL10L30:movedx, ecxL40:movebx, ecxdecebxshlebx, 2addebx, 08hmoveax, dword ptr [ebp+ebx]pusheaxdececxcmp ecx, 0jneL40shledx, 2mov[ebp-04h], edxcallprintfaddesp, [ebp-04h]addesp, 04hpop ebpretMyPrint endpstart:call maininvokeExitProcess,NULL;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>endstart;import printf