Activity

From 10/07/2018 to 11/05/2018

08:57 PM Feature #76: Merge down to trunk: Easy part done, merged down.
For now I branched firmware into firmware_eclairexl and firmware_legacy (for other pl... foft
08:32 PM Feature #76 (In Progress): Merge down to trunk: Made an svn copy of existing trunk (branches/releases/trunk_20181013_premerge)
Also made a backup of lots of random ... foft

09:45 PM Bug #33 (Closed): Wizard of Wor: I modeled this by adding a 1 cycle delay on sel9bitpoly going high. The game then works! foft
09:04 PM Bug #33: Wizard of Wor: The high bit of audctl is sel9bitpoly. In the original chip is is delayed and then combined with itself. So I need a ... foft
08:44 PM Bug #33: Wizard of Wor: Altirra has two massive poly tables and selects between them with this flag. So, not really much help since here we a... foft
08:34 PM Bug #33: Wizard of Wor: I think the 17/9 bit lsfr is based on the decap schematics, so this is probably down to the number of cycles to delay... foft
08:33 PM Bug #33: Wizard of Wor: I set them to nop ... then the game works and no longer crashes! foft
08:19 PM Bug #33: Wizard of Wor: easier to set memory on xex or atx version...
36FD: A9 8F LDA #$8F
36FF: 8D 08 D2 STA AUDCTL... foft
08:10 PM Bug #33: Wizard of Wor: Will try nopping these to see (on cart!!)
A0BB: A9 8F LDA #$8F
A0BD: 8D 08 D2 STA AUDCTL
A0... foft
08:03 PM Bug #33: Wizard of Wor: With 8f for only ... 6 cycles foft
07:57 PM Bug #33: Wizard of Wor: It writes 8f and 00 often to audctl. This switches the shift register from 17 bit to 9 bit and back. Could there be s... foft
07:45 PM Bug #33: Wizard of Wor: No Pokey IRQs
Reads pots, writes potgo
Reads random
Reads skstat
+ plays some music
Nothing out of the ordinar... foft

09:41 PM Bug #33: Wizard of Wor: I put my real pokey back in the 600Xl to confirm. Definitely works properly with real pokey and definitely fails with... foft
09:34 PM Bug #33: Wizard of Wor: Nope, fails with pokeymax in mono mode too!
So, the issue seems to be with pokey. OK, getting closer! Will check w... foft
09:25 PM Bug #33: Wizard of Wor: I'm trying it on my 600XL. I'm getting similar crashes, when running with PokeyMAX. So could be a Pokey bug, or incom... foft
08:10 PM Bug #33: Wizard of Wor: Crashes in the same way with T65, so... I guess its not a cpu bug! foft
08:04 PM Bug #33: Wizard of Wor: I think its a CPU bug, trying to wire up T65 to see if that works. If it does, I'll run the CPUs against each other a... foft

08:55 PM Bug #33: Wizard of Wor: Disables them at $a535 then never re-enables... (this address is normal, I see this call on Altirra) foft
08:44 PM Bug #33: Wizard of Wor: One of the common crashes is when it ends up with the character set in the bottom half. In this state there are no NM... foft
07:39 PM Bug #33: Wizard of Wor: Tried shifting the dli, seems to then work.
Tried removing my cpu hack, no change.
Updated to latest cpu core, chan... foft

08:01 AM Bug #33: Wizard of Wor: I have a feeling I did a cpu patch that I wasn’t certain about to fix the Irq blocking nmi acid test. I expect that i... foft

09:03 PM Bug #33: Wizard of Wor: Planning to shift the dli so it does not overlap, to see if that fixes it. foft
08:29 PM Bug #33: Wizard of Wor: 9c0c: pla on 2nd dli is when 3rd dli fires. This could be shifted by a few cycles on 'events', which could be when it... foft
08:16 PM Bug #33: Wizard of Wor: First dli, seems to reposition player and missiles - for map?
Second dli, wsync, change charset
Third dli, was ente... foft
08:00 PM Bug #33: Wizard of Wor: So, taking another look in Altirra:
Altirra> .dumpdlist
2110: x3 blank 8
2113: mode D @ 3500
2116:... foft
07:25 PM Bug #33: Wizard of Wor: Nope, I was just too rubbish and kept dying before it failed :-) foft
07:19 PM Bug #33: Wizard of Wor: Just testing it and ... tried the atx version and the cart version. They both work now! I guess due to a fix in the l... foft
03:32 PM Bug #33: Wizard of Wor: This one annoys me, raising the priority and going to take another look... foft
03:30 PM Feature #76: Merge down to trunk: This will probably break many (other platform) core builds on trunk in the short term... foft
03:30 PM Feature #76: Merge down to trunk: Keen to get this work back on the mainline. foft
03:04 PM Bug #54 (Closed): GTIA issue when Turbo > 4X: There is a signal that tells gtia when to read the memory from the bus, correctly that signal's generation to allow f... foft

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EclaireXL