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- Path: ifi.uio.no!usenet
- From: ludvigp@ifi.uio.no (Ludvig Pedersen)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: QBlit() waits for blitter to finish... ??
- Date: 25 Jan 1996 11:36:21 GMT
- Organization: Dept. of Informatics, University of Oslo, Norway
- Message-ID: <1045.6597T1237T861@ifi.uio.no>
- References: <4c1v3q$hhs@wumpus.cc.uow.edu.au> <1046.6575T1156T2713@ifi.uio.no><38231832@kone.fipnet.fi>
- <525.6596T951T2024@ifi.uio.no> <755.6597T286T1993@login.eunet.no>
- NNTP-Posting-Host: gymir.ifi.uio.no
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP)
-
- >>>> I had the same problem myself. Later I found out that there is a bug in
- >>>> FasterBlitter (FBL) made by Arthur Hagen.
- >>>> If you har using the FBL-patch, remove it or use the "SLOW" option.
- >>>What kind of bug? What this program does anyway?
- >>It replaces some library fuctions in gfx.library which uses the blitter with
- >>optimised CPU routines.
- >Hi Ludde.
- >It also triger the NASTY BLIT, so any SHIT-ram accsess freezes the CPU.
- Your right about the "blitter nasty".
-
- >>For some unexpected reason, QBlit wont return untill all the blits are
- >>finished.
- >Chip-RAM accsess. Maby with VBR and Exec-Library in fast will do?
- >Have you tested it after we installed FastExec?
-
- I tried our routine again, but *nope*, QBlit didnt work any better after
- installing FastExec.
-
- Hard to say if that is the cause, but maybe...
-
- BTW:
-
- I tried
-
- move.w #1<<10,$dff096 ;))
-
- But it didnt work because the system is restoring DMA control register.
-
-
- <sb>Ludde - Amiga Demo Coder
- <sb>Virtual Reality & Official Be developer
- <sb>ludvigp@ifi.uio.no
-
-