cyeokpeng Posted October 19, 2005 Share Posted October 19, 2005 Hi, I am now doing a project to write a 16-bit DOS piano program to play the 12 notes in an octave, which I have completed. But this program must also be able to "talk" to another computer through null modem R2-232 connection so that the note played on the local PC is also played on the terminal PC. I have a severe problem accessing the COM1 port on the Window XP platform, due to protected rights of accessing the I/O ports in Windows NT and higher operating systems, even when I am using the 16-bit DOS emulator program NTVDM.exe. Is there any quick solution to this problem, how am I going to bypass the Privilege level access of I/O ports (COM1 port) with my written software program? (For example, adding a few assembly codes? How?) Thanks Link to comment Share on other sites More sharing options...
meL Posted October 28, 2005 Share Posted October 28, 2005 forthsoft.com pay only if it works for you and you want to. . . . Link to comment Share on other sites More sharing options...
KFC Posted March 19, 2006 Share Posted March 19, 2006 This Will Help: http://webster.cs.ucr.edu/Page_win32/WindowsAsmPgm/html/WinAsmPgm.html Link to comment Share on other sites More sharing options...
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