Hi

I want to know, if a program has running in real mode, it use 16 bits registers. such AX, BX...

if I make the programs use 32 bits registers. such EAX, EBX..... at DOSX, what is the memory address allocate? I can use 16 bits DOS interrupt at 32 bits programs?

now, I don't understand the program how to load to memory? how to get the address of data?

last, I think the DOSX unlike win32. they are two thing? that is right?

--


regard :)


!!!!!
\*_*/
_\_/_ Your friend li.

"zhang li" <li@stands.3322.org> wrote in message news:as2a58$2hfo$1@digitaldaemon.com...
> Hi
>
> I want to know, if a program has running in real mode, it use 16 bits registers. such AX, BX...

Yes.

> if I make the programs use 32 bits registers. such EAX, EBX..... at DOSX, what is the memory address allocate? I can use 16 bits DOS interrupt at 32 bits programs?

Using DOSX will create a 32 bit program, running in 32 bit protected mode, using the 32 bit registers.

> now, I don't understand the program how to load to memory? how to get the address of data?

Just like you would normally:

    p = &x;


> last, I think the DOSX unlike win32. they are two thing? that is right?

They are two very different things, correct.

16 bits DOS direct memory address map.

-----------------  -> FFFF:0
|ROM BIOS EXPAND
|EMS MAP FRAME
|VIDEO MEMORY MAP  -> B000:0
|----640 KB------  -> A000:0
|
|User Program
|
|system data
-----------------  -> 0:0

What is 32 bits DOSX direct memory address map?


--


regard :)


!!!!!
\^_^/
_\_/_ Your friend li.

Check out the online documentation at www.dosextender.com


"zhang li" <li@stands.3322.org> wrote in message news:as497r$1qa6$1@digitaldaemon.com...
> 16 bits DOS direct memory address map.
>
> -----------------  -> FFFF:0
> |ROM BIOS EXPAND
> |EMS MAP FRAME
> |VIDEO MEMORY MAP  -> B000:0
> |----640 KB------  -> A000:0
> |
> |User Program
> |
> |system data
> -----------------  -> 0:0
>
> What is 32 bits DOSX direct memory address map?
>
>
> --
>
>
> regard :)
>
>
> !!!!!
> \^_^/
> _\_/_ Your friend li.
>
>