conversion from DOS to QNX

QNX Newsgroups (Archives) comp.os.qnx
1

We have a program written in C language under DOS and we want to compile it
and run it under QNX.
The problem is the following:
the program is using the library: dos.h and in particular the
macros:_disable, _enable, _dos_getvect, _dos_setvect.

What are the equivalent of these macros in QNX?

Danielle

2

Previously, Charles K. wrote in comp.os.qnx:

We have a program written in C language under DOS and we want to compile it
and run it under QNX.
The problem is the following:
the program is using the library: dos.h and in particular the
macros:_disable, _enable, _dos_getvect, _dos_setvect.

What are the equivalent of these macros in QNX?

_disable → _disable(),
_enable → _enable(),
_dos_setvect → qnx_hint_attach()

There is not equivalent to _dos_getvect, nor is one needed.

–
Mitchell Schoenbrun --------- maschoen@pobox.com

3

Oppse,

Did you mean QNX4 or NTO? My answer was for QNX4.




Previously, Mitchell Schoenbrun wrote in comp.os.qnx:

Previously, Charles K. wrote in comp.os.qnx:

We have a program written in C language under DOS and we want to compile it
and run it under QNX.
The problem is the following:
the program is using the library: dos.h and in particular the
macros:_disable, _enable, _dos_getvect, _dos_setvect.

What are the equivalent of these macros in QNX?

_disable → _disable(),
_enable → _enable(),
_dos_setvect → qnx_hint_attach()

There is not equivalent to _dos_getvect, nor is one needed.

–
Mitchell Schoenbrun --------- > maschoen@pobox.com

\

–
Mitchell Schoenbrun --------- maschoen@pobox.com

4

Charles K. <kha@proxyma.net> wrote:

We have a program written in C language under DOS and we want to compile it
and run it under QNX.
The problem is the following:
the program is using the library: dos.h and in particular the
macros:_disable, _enable, _dos_getvect, _dos_setvect.

What are the equivalent of these macros in QNX?

Which QNX?

Under QNX4:

Read the docs for qnx_hint_attach() for handling an interrupt – but
the method of handling is a lot different, the OS handles the interrupt
vector, register save/restores, issuing the EOI, etc.

For the enable/disable – grab /usr/include/sys/inline.h – it has
enable() and disable() macros in it.

Under QNX Neutrino (QNX 6 / QNX RTP):
Look at InterruptAttach() in the docs. See notes on qnx_hint_attach().
For enable/disable, look at InterruptLock() and InterruptUnlock().

-David

QNX Training Services
dagibbs@qnx.com