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dissident · 29 August 2018, 18:48

Hi,

is there a way to turn off FAST memory so the system can't allocate it any more apart from this very common technique?

Code:

  CNOP 0,4
rd_turn_off_FAST_memory
  move.l  #MEMF_FAST+MEMF_LARGEST,d1 ;Get largest FAST-memory block
  jsr     -216(a6)                   ;AvailMem()
  tst.l   d0                         ;Still FAST memory ?
  beq.s   rd_no_more_FAST_memory     ;No -> skip
  move.l  #MEMF_FAST+MEMF_LARGEST,d1 ;Get largest FAST-memory block
  jsr     -198(a6)                   ;AllocMem()
  bra.s   rd_turn_off_FAST_memory    ;Loop
  CNOP 0,4
rd_no_more_FAST_memory
  rts

If I do it this way, it's a one-way street. The FAST memory is irreversible lost. I want a solution like NoFastMem of the WB 1.2/1.3 does. Switching FAST memory off and on again.

Does anyone know a smarter way in assembler?

29 August 2018, 18:48	#1
dissident Registered User Join Date: Sep 2015 Location: Germany Posts: 260	Temporary turning FAST memory off Hi, is there a way to turn off FAST memory so the system can't allocate it any more apart from this very common technique? Code: CNOP 0,4 rd_turn_off_FAST_memory move.l #MEMF_FAST+MEMF_LARGEST,d1 ;Get largest FAST-memory block jsr -216(a6) ;AvailMem() tst.l d0 ;Still FAST memory ? beq.s rd_no_more_FAST_memory ;No -> skip move.l #MEMF_FAST+MEMF_LARGEST,d1 ;Get largest FAST-memory block jsr -198(a6) ;AllocMem() bra.s rd_turn_off_FAST_memory ;Loop CNOP 0,4 rd_no_more_FAST_memory rts If I do it this way, it's a one-way street. The FAST memory is irreversible lost. I want a solution like NoFastMem of the WB 1.2/1.3 does. Switching FAST memory off and on again. Does anyone know a smarter way in assembler?