Can I still use Dos interrupt???

[Super2000]

I am trying to compile my program with a little
part of asm code.It looks like when I call dos
interrup,it crashed.the error message is like:
can not read that memory...
Anybody knows this?
ps:Is there anybody using dos interrupt in your c++ program?

Thanks

[Alex Fedotov]

DOS interrupts don't work in Win32 applications. Use Win32 API instead.

[fblaha]

You can't call interrupts from WIN32 directly. INT is privilege instruction ( like direct I/O access using in,out instruction....etc) To simulate an interrupt under 9x take a look to VMMcall and VDD in MSDN.

For example MSDOS function Get Version (INT 21h, Function 30h):

mov ax, 3000h
push dword ptr 21h
VMMcall Exec_VxD_Int

Result is:
in AL is major DOS version
in AH is minor DOS version


On NT you must write driver.