Search found 17 matches
- Sun Oct 29, 2023 6:23 pm
- Forum: Games/Software
- Topic: Chase HQ Sinclair User demo
- Replies: 1
- Views: 188
Re: Chase HQ Sinclair User demo
Yeah it's tough!
- Thu May 18, 2023 5:05 pm
- Forum: Announcements
- Topic: Chase H.Q. disassembly
- Replies: 9
- Views: 865
Re: Chase H.Q. disassembly
The sprites look like straight copies to me, rectangular with no masking, and placed horizontally (at least) to 8-pixel character positions. A straight 'blit', if the Spectrum had a blitter chip! I can imagine roadblock signs working the same way; are the dust clouds like that too? Unmasked? I'm cu...
- Thu May 18, 2023 4:58 pm
- Forum: Announcements
- Topic: Chase H.Q. disassembly
- Replies: 9
- Views: 865
Re: Chase H.Q. disassembly
I can explain the "SHOCKED" text at $EE30. This is a cheat mode: redefine the keys as SHOCKED and you get a special cheat menu. By the way, it's odd to me that you put "© 1989 Ocean Software Ltd" at the bottom of your disassembly. Yes, they own the code, but your disassembly inv...
- Thu May 18, 2023 1:22 am
- Forum: Announcements
- Topic: Chase H.Q. disassembly
- Replies: 9
- Views: 865
Re: Chase H.Q. disassembly
Here's the current disassembly output: https://dpt.github.io/ChaseHQ/index.html
- Sun May 07, 2023 7:36 pm
- Forum: Games/Software
- Topic: Speedup POKEs
- Replies: 4
- Views: 207
Re: Speedup POKEs
The Great Escape has a delay loop you can disable: POKE 41109,201
See https://dpt.github.io/The-Great-Escape/asm/A095.html
It only affects indoor scenes though.
See https://dpt.github.io/The-Great-Escape/asm/A095.html
It only affects indoor scenes though.
- Fri Apr 14, 2023 5:10 pm
- Forum: Announcements
- Topic: Chase H.Q. disassembly
- Replies: 9
- Views: 865
Re: Chase H.Q. disassembly
It's really not much of a slow down. They're just sprites however. If they were 'real' cars then I imagine the game would get bogged down quite quickly.
- Fri Apr 14, 2023 4:29 pm
- Forum: Announcements
- Topic: Chase H.Q. disassembly
- Replies: 9
- Views: 865
- Wed Mar 22, 2023 1:31 pm
- Forum: Games/Software
- Topic: Ephemera included with games
- Replies: 14
- Views: 451
Re: Ephemera included with games
I appreciated Carrier Command's extra music tape, and the 720 degrees soundtrack too.
Last Ninja 2 was supposed to arrive with a ninja mask and a rubber shuriken but my shuriken didn't show up in the box. Miffed.
D.
Last Ninja 2 was supposed to arrive with a ninja mask and a rubber shuriken but my shuriken didn't show up in the box. Miffed.
D.
- Tue Mar 21, 2023 4:23 pm
- Forum: Announcements
- Topic: Spectrum Analyser release thread
- Replies: 15
- Views: 1217
Re: Spectrum Analyser release thread
- Mon Mar 20, 2023 10:02 am
- Forum: Announcements
- Topic: Chase H.Q. disassembly
- Replies: 9
- Views: 865
Chase H.Q. disassembly
Spec chums, I've started pulling Chase H.Q. apart. Hopefully I can find the time to reverse engineer it to a similar level as my disassembly of The Great Escape. It's early days so it's the 48K version first. So far I've mapped out the strings, a lot of the graphics and some of the routines related ...
- Fri Mar 17, 2023 4:10 pm
- Forum: Announcements
- Topic: Spectrum Analyser release thread
- Replies: 15
- Views: 1217
Re: Spectrum Analyser release thread
And here's a video of me doing just that:
D.
D.
- Fri Mar 17, 2023 1:25 pm
- Forum: Announcements
- Topic: Spectrum Analyser release thread
- Replies: 15
- Views: 1217
Re: Spectrum Analyser release thread
Amazing stuff. I have it running on macOS now. I needed to make some small changes to get it going, which I'll feed back. I amended the graphics viewer to let me see Chase H.Q.'s back buffer. That combined with slowing the game down to a tiny percentage of its original speed lets me watch the screen...
- Wed Mar 15, 2023 6:24 pm
- Forum: Announcements
- Topic: SkoolKit 8.9
- Replies: 6
- Views: 220
Re: SkoolKit 8.9
I tried out --sim-load on a tape of Chase H.Q. last night and ended up starting another project... https://github.com/dpt/ChaseHQ
D.
D.
- Wed Mar 15, 2023 4:22 pm
- Forum: Announcements
- Topic: SkoolKit 8.9
- Replies: 6
- Views: 220
- Wed Mar 15, 2023 12:52 pm
- Forum: Sinclair Miscellaneous
- Topic: Spinal Tap
- Replies: 4
- Views: 181
- Wed Dec 20, 2017 1:12 am
- Forum: Programming
- Topic: Reverse engineered game code
- Replies: 16
- Views: 5226
Re: Reverse engineered game code
Closest I can offer is "Cannonball": the reconstructed OutRun engine: https://github.com/djyt/cannonball/wiki
- Sun Dec 17, 2017 10:39 pm
- Forum: Programming
- Topic: Reverse engineered game code
- Replies: 16
- Views: 5226
Re: Reverse engineered game code
I discovered a Head Over Heels disassembly the other week on github which I'd not previously spotted: https://github.com/simon-frankau/head-over-heels