Search found 1447 matches

by Jubatian
Sun Jun 21, 2020 12:42 pm
Forum: Games & Demos
Topic: Tempest is possible
Replies: 579
Views: 89854

Re: Tempest is possible

That's pretty reasonable what you mention about CRC and speed! Your game is a different use case than what the Bootloader API targets: it is streaming of raw data where an occasional hiccup does nothing ill. You can still use the Bootloader API of course to save space by not having the SDHC / FAT fi...
by Jubatian
Sun Jun 21, 2020 12:35 pm
Forum: Uzebox Emulator
Topic: CUzeBox - The new official Uzebox emulator
Replies: 243
Views: 78416

Re: CUzeBox - The new official Uzebox emulator

Hi Artcfox, Taking a look at the Windows Audio issue, trying to understand the causes and why the particular solution would solve it. Do I get it right that the introduction of WASAPI support is the culprit? https://discourse.libsdl.org/t/sdl-2-0-8-released/23957 Which is introduced in 2.0.8, and in...
by Jubatian
Tue Jun 16, 2020 7:23 pm
Forum: New to Uzebox? Start here!
Topic: Several newb questions
Replies: 33
Views: 1366

Re: Several newb questions

I had forgot to mention Flight of a dragon in the shortlist of most impressive games. I have seen a video of it and it looks great but after building the source it isn't running under uzem for me - I just get a load a garbled mess instead. It does work fine under the browser so not sure where I'm g...
by Jubatian
Tue Jun 09, 2020 9:36 pm
Forum: Games & Demos
Topic: Tempest is possible
Replies: 579
Views: 89854

Re: Tempest is possible

Glad it works in the end! Also of course it is pretty much a thing that this is the first time I could play it myself on real HW, only having a single 8Gb SDHC which is sufficiently fast to do this!
by Jubatian
Tue Jun 09, 2020 9:31 pm
Forum: Programming & Software
Topic: New bootloader
Replies: 143
Views: 49933

Re: New bootloader

Those fuses indeed might need some thought, seems to me you (Artcfox) are leaning towards keeping it safe (selecting longer startup delays and adding the BOD), which in fact is a good idea! Especially due to the thing being overclocked. On normal Uzeboxes (using the DIP ATmega) either the 644 or the...
by Jubatian
Sun Jun 07, 2020 12:24 pm
Forum: Programming & Software
Topic: New bootloader
Replies: 143
Views: 49933

Re: New bootloader

This was quite a mess. Thank you, with the repro case I could start actually hunting this down and locate it. It wasn't anywhere near the SD / FS initialization or however parts of the FS are laid out. The root directory listing got stuck due to that I apparently misread how special cluster values a...
by Jubatian
Sat Jun 06, 2020 9:52 am
Forum: Programming & Software
Topic: New bootloader
Replies: 143
Views: 49933

Re: New bootloader

I am totally at loss at this. I reproduced the filesystem structure on an SDHC card (first partition at 0x400000, count of reserved sectors 0x18A0, FAT located accordingly, the SD Association Card formatter ended up producing this for my card), and for me the thing doesn't fail, the bootloader reads...
by Jubatian
Sun May 31, 2020 10:12 pm
Forum: Programming & Software
Topic: New bootloader
Replies: 143
Views: 49933

Re: New bootloader

By what you had sent I suspect it wasn't the empty space which ticked the bootloader off. I analyzed the hex (sent reply by e-mail), and in that one, at the 0x40000E - 0x40000F location the (Little Endian) value 0x18A0 occurs. This pair of bytes stores the count of reserve (logical) sectors before t...
by Jubatian
Sun May 31, 2020 10:14 am
Forum: Programming & Software
Topic: New bootloader
Replies: 143
Views: 49933

Re: New bootloader

Bootloader faults with some SD cards ( discovered during Tempest SDHC tests ). Some information on this, as far as I see, general limitations of the SD library which might happen to be stressed in this case (if so, I really can't grasp why such formattings are even used): The first partition must st...
by Jubatian
Sun May 31, 2020 9:38 am
Forum: Games & Demos
Topic: Tempest is possible
Replies: 579
Views: 89854

Re: Tempest is possible

Wow, nice progress here, I could finally play Tempest on real HW! Unfortunately I had absolutely zero luck reproducing the bootloader issue. No matter what card I used, what filesystem I formatted it with (FAt-16 or FAT32), it just worked. Including things like putting Tempest and its level file on ...