🚀 go-pugleaf

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Matt Arnold (marnold@netcom.com) wrote:
: forster@liverpool.ac.uk (Mr R. Forster) writes:

: >I have posted this recently in the group comp.lang.c,

: >I need a algorithm to find the quickest way to establish the maximum amount
: >of dynamic memory that can be allocated using C.

: >Using DOS and the function MALLOC.

A better way to do it would be:

unsigned long MemAvail()
// Assuming Borlandc but it should be available in other compilers
{
 REGS r;
 r.h.ah=0x48;
 r.x.bx=0xffff;  // Try and allocate 1MB or RAM - it will fail
 int86( 0x21, &r, &r ); // Call DOS
 return( r.x.bx ); // This call failed and it returns to max mem avail in BX 
}

Hope this helps. It should be easier and faster to implement. Under 
borlandc there is the commands coreleft and farcoreleft which does the same
type thing.
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