the memory model being used in elks?

Hello,

Finally I tried to test the "pres" utility on elks
as opposed to elksemu.

Too bad, it reports lack of memory
and it looks like the maximum available memory is around 30K,
the console shows:

 sys_brk failed: len -32634 > end_seg 30864
 sys_brk failed: len -32632 > end_seg 30864
 sys_brk failed: len 31368 > end_seg 30864
  ...

I assumed somehow a data segment with around 60K available,
is this not the case? 

The same binary works just fine under elksemu.

Rl