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From 08/21/2018 to 09/19/2018

09/13/2018

09:38 PM Bug #74: Mounted disks don't always load
I'd added a 2ms delay temporarily to stop some fast/slow flip flopping. That actually breaks USB keyboard when in tha... foft

09/03/2018

09:31 AM Bug #74: Mounted disks don't always load
Ok good. That’s as I hoped. I still need to make switching from slow to fast sio and back more reliable, I just fixed... foft

09/02/2018

10:01 PM Bug #74: Mounted disks don't always load
It doesn't seem to be happening as much although I did run into some weirdness a couple of times that might be relate... Farb
09:53 PM Bug #74: Mounted disks don't always load
Farb, are you still running into this with the latest builds? foft
10:00 PM Feature #73: Implement ATX disk image support
Ok, I just checked in a couple more changes. Your patch file should get pretty small now :-D Farb
09:37 PM Feature #73: Implement ATX disk image support
So this is what I ended up with as a patch to atx.c.
I'm updating gTrackInfo on every disk change or access to dif...
foft
09:44 PM Core v28
* atx support, thanks to Farb
* fixed disk change sio ack bug (swap file read before ack led to failed reads on disk...
foft

09/01/2018

04:40 PM Feature #73: Implement ATX disk image support
That's great, thanks. foft
04:09 PM Feature #73: Implement ATX disk image support
Ok, done and checked into v09 branch. Farb
01:44 PM Feature #73: Implement ATX disk image support
Could it be changed somehow like this? i.e. move the avr parts to another file and add byte swapping? foft

08/31/2018

11:08 PM Feature #73: Implement ATX disk image support
Oh, and let me know if there are things I can do in the atx.h/c code to make it easier for you to consume :-) Farb
11:07 PM Feature #73: Implement ATX disk image support
I just updated to atxv5 and confirmed that 107 all passes and the few games I tested worked great. Fantastic work!! Farb
09:47 PM Feature #73: Implement ATX disk image support
I put this up as atxv5.
So 107 all passes, but 107 track35 seems to have a lot of NOKs...
foft
09:39 PM Feature #73: Implement ATX disk image support
Updated to the v9 code.
I need to split out the eclaireXL changes to make this easier to update. I was going to m...
foft

08/28/2018

09:45 PM Bug #74: Mounted disks don't always load
Added more structure to the command handling (common ack/nak etc) and looking much better. More to do though... foft
09:57 AM Bug #74: Mounted disks don't always load
I guess a disk revolution at 288rpm is 200ms, so it must be ok timing wise to do the ack first. foft

08/27/2018

09:34 PM Bug #74: Mounted disks don't always load
The time spent on iii is in pf_open, the fat file system open. I guess this must do some work.
Perhaps if I ack fi...
foft
09:22 PM Bug #74: Mounted disks don't always load
So 3 problems...
i) Sometimes bad checksum, must be a sync issue with pokey clock I guess.
ii) Flip flopping betwee...
foft

08/26/2018

09:41 PM Bug #74: Mounted disks don't always load
Hmmm, gets a failed checksum on the first sector read and switches to high speed sio. Then takes a while to resync.
...
foft
08:45 PM Bug #74: Mounted disks don't always load
Setting up the logic analyser to check the cause of the first few fails on the scanalyzer... foft
08:51 AM Feature #73: Implement ATX disk image support
Thanks. It loaded more on the 400/800 rom (but not that far) and stopped early on the XL/XE. I think I have the patch... foft

08/25/2018

06:00 PM Feature #73: Implement ATX disk image support
I just tried it with SDrive Max and Eclaire in XL/XE mode. It loaded and I got to the point that the plane was on the... Farb
05:31 PM Feature #73: Implement ATX disk image support
Hmm, will check the timing some more.
Does flight sim II work on the max? I remember that being time sensitive and...
foft
03:58 PM Feature #73: Implement ATX disk image support
I just tested Bandits with SDrive Max and Eclaire XL in 800 mode. It works fine. You need to wait until the full game... Farb
08:41 AM Feature #73: Implement ATX disk image support
Hmm, Bandits just worked with no change. Perhaps related to the other sector error issue. foft
08:31 AM Feature #73: Implement ATX disk image support
I'll put it up as atxv4 shortly.
Tested the few you sent. They all seem to work, except Bandits still does not pla...
foft
12:02 AM Feature #73: Implement ATX disk image support
Fantastic! :-D Farb

08/24/2018

09:42 PM Feature #73: Implement ATX disk image support
Now M.U.L.E. works:-) + Bruce Lee. foft
09:41 PM Feature #73: Implement ATX disk image support
Ooops, had the subtraction backwards in waitForAngularPosition, doh. foft

08/23/2018

08:40 PM Bug #74: Mounted disks don't always load
Probably about time I fix this, might be impacting some atx loading too. foft

08/22/2018

12:56 PM Feature #73: Implement ATX disk image support
Here's further info about those two disks:
http://a8preservation.com/#/software/dump/82
http://a8preservation.com...
Farb
12:55 PM Feature #73: Implement ATX disk image support
I believe phantom and duplicate sector are synonymous. Yes, multiple sectors with the same number on a track. Both Ag... Farb
12:50 PM Feature #73: Implement ATX disk image support
What is a phantom sector? Same sector number and valid/crc error/weak on same track? Do you have examples for one on ... foft
08:50 AM Feature #73: Implement ATX disk image support
I quickly confirmed that changing $F7 to $EF didn't break any of the images I ran the Scanalyzer test and it returns ... Farb
07:19 AM Feature #73: Implement ATX disk image support
Hmm, good point. The status bits are active low which would make $F7=11110111 and $EF=11101111. Bit 4 represents reco... Farb
07:03 AM Feature #73: Implement ATX disk image support
Why does the code default to 0xf7? It says that means ‘data crc or weak sector’ in the hardware manual. The comment i... foft
06:22 AM Feature #73: Implement ATX disk image support
As you have already surmised, the status byte returned from loadAtxSector contains the FDC status bits. Are you takin... Farb

08/21/2018

11:27 PM Feature #73: Implement ATX disk image support
Ok, I tested v3 and saw a few things:
1. Agent U.S.A. and Goonies successfully loaded. Woohoo!
2. Bandits success...
Farb
09:17 PM Feature #73: Implement ATX disk image support
OK, have to call it a day for today. I'll put up v3 with the latest anyway, though I suspect not much really helped y... foft
09:15 PM Feature #73: Implement ATX disk image support
OK, can reproduce the same results in the linux sim... Which is good. So its not a missed byte swap (there is no byte... foft
09:05 PM Feature #73: Implement ATX disk image support
Yeah I wired status up right after building atxv2. I am getting back 0xf7 though. Its not finding the sector in the l... foft
09:03 PM Feature #73: Implement ATX disk image support
Glad it is making progress. I did wonder if bug 74 had something to do with what I was seeing. Are you using the stat... Farb
08:33 PM Feature #73: Implement ATX disk image support
OK, little better. Now getting 247 on 19,20,... and 28,32. Investigating why the status is not 239 now. foft
08:26 PM Feature #73: Implement ATX disk image support
I think the first few errors may be related to the bug 74 you raised.
I do see failure on those sectors though I w...
foft
07:00 PM Feature #73: Implement ATX disk image support
If it’s that broken I wonder why air strike, Bruce Lee and lode runner work.
I’ll try that tool...
foft
07:28 AM Feature #73: Implement ATX disk image support
I did some further testing and something definitely seems quite wrong. I can understand timing problems causing dupli... Farb
 

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