lib/memory  --  Memory allocation                                                                                               XXXX  obtain           Obtain 512*XXXX bytes of memory          XXXX  release          Release 512*XXXX bytes of memory         XXXX  heap             Obtain 512*XXXX bytes of memory and set                         as the heap.                                                                                                                                                             here last @                                                     : cleanup literal last ! literal h0 ! ;                         : windows cleanup 2 s e ;                                       : linux   cleanup 3 s e ;                                       : generic cleanup ." lib/memory is not supported yet" cr ;                                                                                                                                                                                                      loc:                                                              from kernel32.dll                                               2 import GlobalAlloc     1 import GlobalFree                    : obtain 512 * 0 swap GlobalAlloc ;                             : release 1 GlobalFree drop ;                                   ' obtain  ' release                                           ;loc  alias release  alias obtain                               : heap obtain h0 ! ;                                            loc:                                                              : brk 1 45 syscall ;                                            : obtain 512 * 0 brk tuck + dup brk <>if drop 0 then ;          ' obtain                                                      ;loc  alias obtain                                              : release negate obtain ;                                       : heap obtain h0 ! ;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                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