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#1
C
Other retro / Re: Imogen, a hidden gem of th...
Last post by cwpab - Today at 19:06
Some thoughts:

- I must clarify that in my first message, "I'm tempted to try it" means "try the game", not "porting it". I only know some Visual Basic!

- I don't recommend watching the whole video about the game I linked because the guy, which seems nice and a BBC Micro expert, spoils all the puzzles, it's basically a guide instead of a review.

- Instead, I recommend checking his playlist where he plays all BBC Micro games and ranks them. Imogen is #2, Elite is #1.

- About the Atari 8 bit port, I'm glad it exists, but the 2004 Green Day song (while being a nice chiptune cover) feels totally out of place. They could have chosen one of the multiple 1986 hits instead, like Walk This Way from Aerosmith/Run DMC or Venus from Bananarama! (Both more suited to the game theme):
#2
Quote from: vasilisk on Today at 15:15Apparently, ulifac handles the dsk in a different way compared to gotek. Since the same dsk loads without problem in the gotek
Indeed, you see:
- Flash floppy firmware of a Gotek Drive only emulates disk drive functions, and in case of CPC, requires the presence of 765 Floppy Disk Controller.

- ULIfAC/USIfAC II Emulates the 765 Floppy Disk Controller ITSELF, in order to access dsk images (that's why using USIfAC II/ULIfAC you can access dsk images even on a CPC 464, buy you can connect a gotek drive only to a CPC 664/6128).

For the most part, both approaches work the same way, except for two differences:
1) 765 FDC emulation in ULIfAC/USIfAC II, works "as fast as it gets" e.g. without keeping the various delays of a real disk drive (like setup times, moving head to track, or wait dozens of us for response), as gotek drive does. Thus image access using USIfAC II/ULIfAC is practically ~10-20% faster compared to a disk/gotek drive.
2) 765 FDC emulation in ULIfAC/USIfAC II implements the 765 FDC functions that are needed for normal disk drive operation, where flash floppy, implements ALL disk drive functions that are needed even for..."abnormal" operations. That's why gotek drive can load some "original"/ copy protected dsk images but ULIfAC/USIfAC II can't. The current 765 FDC emulation was a hell of time consuming and difficult task to achieve, but since all copy protected game images are "thing from the past", and also, all of these copy protected games can be found nowadays in cracked/"normal" dsk image versions, i don't think it matters anymore :)  (btw, 765 FDC emulation can handle many "abnormalities" in a dsk image, like having different number/type/size of sectors on each track, but it can't read data from GAP#3 a typical copy protection method of the time)

In any case, the specific problem we discuss here, has nothing to do with the handling of the dsk image from ULIfAC's 765 FDC emulation, but it's a "hiccup" of the CH376 USB host module itself.
#3
avatar_MaV
Programming / Re: interesting walkthrough vi...
Last post by MaV - Today at 16:28
Quote from: BSC on Yesterday at 20:08For audio that is supposed to be consumed by humans (and not dogs or bats, for example) 44 Khz is sufficent.
You can lower the value even by a considerable amount if you consider the age of your audience.  :laugh:
#4
Thank you!!
#5
J
Games / Re: Turrican (128K)
Last post by jackic - Today at 15:34
Thanks! You are making a good game into an amazing one! Almost better than the sequel!
#6
Hi , found at CPCRULEZ website..
#7
Apparently, ulifac handles the dsk in a different way compared to gotek. Since the same dsk loads without problem in the gotek 
#8
With Anthony's DSK all looks normal. PROGD has a valid amsdos header and it ends part way through track 39. The disk also looks standard 40 track AMSDOS based disc.

With ikonsgr's dsk the files are arranged differently due to formatting and copying and data goes up to track 23.

So the only difference I believe is where on the dsk PROGD ends in this case.

#9
Well I don't know that I did anything unusual! Certainly wasn't trying to be tricky. Compiled files with WinApe. Compressed with ZX0. Used ManageDSK for file transfer.

Just a magical ability to make a cursed file I suppose. 
#10
avatar_Brundij
Games / Re: Adapting loading screens t...
Last post by Brundij - Today at 13:35
Something like this and then recolour with a new mindset, but I'm done with this one at least for now. Maybe I'll get it up some other time.
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