What to do with a glitch in Hook?

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BrunoWeinberger
Posts: 3
Joined: Sun Jan 02, 2022 10:26 am

What to do with a glitch in Hook?

Post by BrunoWeinberger »

I don't know why and how but after a while, the first cutscene just starts showing those Q squares, green and sometime red ones. What causes that glitch and how to fix that?
Image
Last edited by BrunoWeinberger on Sun Mar 12, 2023 6:00 am, edited 1 time in total.
Fiskbit
Posts: 891
Joined: Sat Nov 18, 2017 9:15 pm

Re: What to do with a glitch in Hook?

Post by Fiskbit »

Your image isn't showing, so I've attached it to this post.

Edit: It sounds like the image may show for some people but not others. I suspect this may be along the lines of the forum issue discussed here, though the target image is on an https domain, so I'm not sure. Anyway, I'm leaving it attached here for those like me who can't see it above.
Attachments
Hook Qs.jpg
93143
Posts: 1717
Joined: Fri Jul 04, 2014 9:31 pm

Re: What to do with a glitch in Hook?

Post by 93143 »

It shows fine for me.
BrunoWeinberger
Posts: 3
Joined: Sun Jan 02, 2022 10:26 am

Re: What to do with a glitch in Hook?

Post by BrunoWeinberger »

Fiskbit wrote: Sun Mar 12, 2023 3:57 am Your image isn't showing, so I've attached it to this post.

Edit: It sounds like the image may show for some people but not others. I suspect this may be along the lines of the forum issue discussed here, though the target image is on an https domain, so I'm not sure. Anyway, I'm leaving it attached here for those like me who can't see it above.
I've changed a link so I hope it will work
Pokun
Posts: 2681
Joined: Tue May 28, 2013 5:49 am
Location: Hokkaido, Japan

Re: What to do with a glitch in Hook?

Post by Pokun »

Nope doesn't work for me.
Sour
Posts: 891
Joined: Sun Feb 07, 2016 6:16 pm

Re: What to do with a glitch in Hook?

Post by Sour »

The answer is in my old notes here:
https://snes.nesdev.org/wiki/Tricky-to-emulate_games

Basically, this problem occurs if you're allowing writes to VRAM while the screen is being drawn (e.g outside of vblank/forced blank)
93143
Posts: 1717
Joined: Fri Jul 04, 2014 9:31 pm

Re: What to do with a glitch in Hook?

Post by 93143 »

BrunoWeinberger wrote: Sun Mar 12, 2023 6:01 amI've changed a link so I hope it will work
It's broken now.
BrunoWeinberger
Posts: 3
Joined: Sun Jan 02, 2022 10:26 am

Re: What to do with a glitch in Hook?

Post by BrunoWeinberger »

Sour wrote: Sun Mar 12, 2023 7:32 am The answer is in my old notes here:
https://snes.nesdev.org/wiki/Tricky-to-emulate_games

Basically, this problem occurs if you're allowing writes to VRAM while the screen is being drawn (e.g outside of vblank/forced blank)
Thanks, this helped
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