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- Date: Mon, 30 May 94 17:13 CDT
- From: ekl@sdf.lonestar.org (Evan K. Langlois)
- To: mint@atari.archive.umich.edu
- Subject: GEMDOS re-entrancy
-
-
- ========================================================================
- Yes, that is it, indeed. But everybody sees the necessity to have such a
- TOSFS, but nobody develops it :(
- ========================================================================
-
- Why not have TOSFS lock the system, but not other drivers? I could write
- such a driver, but I REALLY don't want to. And I'm busy. And a bunch
- of other good excuses for not doing it :-)
-
- ========================================================================
- But maybe it is good, that there is still no code around, so we could wait
- for the chicago fs and implement it then all-in-one...
- ========================================================================
-
- Wait for Microsloth? What for? Do you think the chicago filesystem is
- REALLY that wonderful? I have the source for the HPFS used by OS/2. The
- code is for Linux, but it should be portable to MiNT. If anyone w⇧ants it,
- just lemme know.
-
- ========================================================================
- That is what I suggested a long time ago, but as far as I know AHDI does
- not use it. It just sets it for every access, but never checks it before
- doing so :(
- ========================================================================
-
- Don't we need a new disk driver anyway that won't block the system? I thought
- that once we called AHDI, MiNt would loose control. Someone said they had
- SCSI code. I'd be in favor of hacking up a new driver.
-
- ========================================================================
- Well, yes and no. The floppy data transfer is done via DMA, the same DMA
- channel as the ACSI HD interface uses. So it will lock out that hard disk
- access. But on a TT, there should be a chance that there can be floppy
- transfer at the same time as SCSI transfer... provided that there is the
- software to support it.
- ========================================================================
-
- That would be nice. To be formatting a floppy, saving data to the SCSI
- drive, and still be able to do serial IO (Zmodem could save a block and
- read in another at once - who needs flow control?). And you could be
- doing a ray-trace too :-) I guess I'm just dreaming.
-
- So, we replace AHDI with a real SCSI/ACSI driver and implement a new TOSFS.
- some other minor hacks (the SCSI device driver should handle
- putting processes on the wait queue and such).
-
- Anyone just gonna go for it? Not me :-)
-
-