List of lists code example

Does anybody have a working example code using dos int 52h to know all
program in memory in dos? I´ve been trying to use it unsucesfully for
quite a time

Everytime I try to search for "how mem.exe works" or something like
that I end up with "you need to use int21h/52h to get list-of-lists
and walk through the MCB chain" Well, I tried this:

#include "dos.h"
#include "mem.h"

struct mcb
{
char flag;
unsigned owner;
unsigned length;
char junk[3];
char name[8];
};

void main(void)
{
union REGS inregs, outregs;
struct SREGS sregs;
struct mcb mcb;
unsigned char far *p, *addr;

inregs.h.al = 0x00;
inregs.h.ah = 0x52;

intdosx(&inregs, &outregs, &sregs);
p = MK_FP(_DS, _BX-2);
memcpy(&mcb, p, sizeof(mcb));
}

Sorry if this looks absurd someway, but I´ve tried A LT of things
before that
Watching mcb var never returns the 'M' signature I would see if the
first MCB was pointed correctly I tried using *p, $p, p in every
situations (sorry about it, but i am desesperated already)
What am I doing wrong?

gerotica wrote:

Everytime I try to search for "how mem.exe works" or something like
that I end up with "you need to use int21h/52h to get list-of-lists
and walk through the MCB chain" Well, I tried this:

Why not get source code for FreeDS' MEM?

--
Robert Riebisch
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