Peer
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Sorry, couldn’t do any testing so far. We left for Munich last Friday night, and we will go back next weekend. I will start playing once we have returned.
Cheers,
PeerSorry for being silent for a while. I was occupied by another Vectrex-related project which is currently being done by four of my students. I like the “drunken steering”, I think that would be a nice and mean little addition to VB 🙂 No particular things on my wish list right now, but I could certainly think up some. Do you still want new ideas?
Cheers,
PeerBut doesn’t this perfectly match the symptoms? Bank screen, cut-off sound continuing to play ever on? Remember, we had this “endless loop theory”, but did not know any possible cause. Judging from what Chris wrote, this piece would fit and complete the puzzle. Or at least one part of the puzzle.
Congratulations!!! No matter what the outcome, this is great!!!
Level 474? I take a deep bow to your persistence in hunting down this bug. And after all the attempts of the past weeks I am soooo curious now what the reason of the crash is…
Eagerly looking forward to your next post!
Many cheery Cheers,
Peer… provided I play each level in less than 60 seconds …
Why the rush?
There are 4 buttons, so a complete button state requires just one nible, and you can store 2 frames in one byte. If you need just the fire button, then 8 frames can by compressed in one byte. Joystick x can also be compressed. The ship cannot “jump” from 50 to 100. So you can store just the delta (which basically is the joy left/middle/right information). Again one byte can store at least 2 frames. This of course requires some encoding/decoding bit-fiddling infrastructure, but that shouldn’t be too complicated.
Just a though, but this should give you more than 60 seconds, or the possibility to store some additional useful information?
Bother – I have to work today…
Yeah, same here, annoying distraction from the really important things… 😉
Cheers,
PeerAre you sure that you don’t want/need it?
I would have included some more Vectorblade Power-Ups in the package 😉
Cool idea!
But sometimes it not only rains – it pours. As of this hour my Eprom programmer is broken – it does not work.
Umbrella: I can send you my eprom programmer, so that you can continue to work while claiming warranty for yours. I have lectures all morning and our local post office is closed this afternoon, but I can do this tomorrow, so the package might reach you before the upcoming weekend. I have the model that vtk recommended when VB beta testing started. Would that suffice?
Cheers,
PeerI don’t want to hear any “I told you so …”
I would never say that. That is not in my nature.
And I too think that it is still too early to conclude anything. If it really is Voldemort, then what magic spell does Vide use to keep him at bay?
… an afterthought…
… and there is the small thing, that the actual crash NEVER yet happened while playing in Vide!
Yes, precisely. So even if Voldemort is responsible for some evil, that would not explain why he is not doing the same evil in Vide. Unless Vide is some sort of sanctuary where certain evil spells do not work.
Which brings me to the following (hopefully not already asked) question:
What exactly happens, when
- – a write to a ROM location occurs?
- – a read or write to the unmapped(?) memory between $CC00 – $CFFF, $D800 – $DFFF occurs?
I read that some parts of the memory are shadowed.
But again, what excactly happens in such situations on the real hardware, and how does Vide handle those things? Any chance of some mismatched behavior here?
Cheers,
PeerThe “ever” increasing “what is not to be named” I actually totally rule out. Remember? – First thing in my game round that thing is always reinitated to a fixed base value…
Yeah, memory failure on my side. Too much stuff inside my head…
The thing is I used the “what is not to be named” in game quite frequently for other things – than pure “storing intermediate data”.
Another memory failure. You also told me about that before. I should run some diagnostics on my higher brain functions…
Any chance that those “other things” might conflict with some jsr/rts/rti like instructions that at the same time want to use Voldemort in the regular way?
Or have I already also asked that before, and already gotten an answer to that from you?
Cheers,
PeerI do not want to hear the word “stack ever again”
This is a STACK test bin.
Shush, don’t say the word! Don’t wake it! The beast who shall not be named will grow beyond any limit when spoken of! 😉
What about re-using that brilliant idea of yours of adding a special watch-dog to Vide (there already is something like that, isn’t it?): Checking and recording the maximum growth (with respect to its base in VB) of the beast after each single emulated processor instruction, and let Vide go into break-point mode if a certain limit is exceeded?
If the crash does not happen – it’s a <censored> thing!
Always the devil’s advocate: Yes, likely, but keep in mind, that if the crash does still happen, then this does not rule out the beast as root of all evil. It could still be an ever-increasing it-who-we-dont-speak-of thing…
Cheers,
PeerPS: New fighter look, cool!
