[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [MiNT] MiNT 1.19 and malloc size limitation?



Sorry again, this is my mistake: found the bug in a wrong variable name (if you want to understand, mxalloc! <> mx_alloc!).

I'll have to verify all my softwares.

Rajah


Le 23/03/2015 23:54, Miro Kropáček a écrit :
Rajah,

that source is unnecessarily complex. Could you provide a simple, straightforward prg which prints free memory and then allocates let's say half of it?

On Mon, Mar 23, 2015 at 11:08 PM, Rajah <rajah@triplea.fr> wrote:
FireBee+MiNT 1.19, about 13 376 000 bytes
Aranym+MagiC 6, about 14 240 000 bytes

This looks suspiciously close to ST RAM size. Especially this code used for calculation of the Mxalloc() memory type:

> FUNCTION mx_mask 
  $F%
  IF GEMDOS(68,L:-1,0)=-32
    RETURN 0
  ELSE IF GEMDOS(290,-1)=-32
    RETURN 3
  ENDIF
  RETURN -1
ENDFUNC

  IF mx_mask%<>0
    mx_mode&=OR(mx_mode&,&X100000)
    RETURN GEMDOS(68,L:mx_len%,W:mx_mode& AND mx_mask%)
  ENDIF
  RETURN GEMDOS(72,L:mx_len%)
ENDFUNC

looks really creepy. What about a test case with simple Mxalloc(size, 3).

--
MiKRO / Mystic Bytes
http://mikro.atari.org