Search found 407 matches

by SkoolKid
Mon Apr 15, 2024 12:18 pm
Forum: Announcements
Topic: SkoolKit 9.2b1
Replies: 3
Views: 198

Re: SkoolKit 9.2b1

I've used #SIM a lot for my Booty disassembly and can confirm that everything appears to work identically to the 9.1 version. I don't see any differences, and the build time is roughly a third less. Glad to hear it. SkoolKit - saving energy and the planet since version 9.2. :D For my own part, I'm ...
by SkoolKid
Fri Apr 12, 2024 9:11 pm
Forum: Announcements
Topic: SkoolKit 9.2b1
Replies: 3
Views: 198

Re: SkoolKit 9.2b1

In case anyone wants to keep using SkoolKit 9.2b1 for a bit, the (updated) manual can be found here . I should have mentioned that the new Z80 simulator is used by default wherever the old one was, so it's not only trace.py that's faster now - tap2sna.py , #AUDIO and #SIM also get a speed boost. Try...
by SkoolKid
Fri Apr 12, 2024 7:24 pm
Forum: Announcements
Topic: SkoolKit 9.2b1
Replies: 3
Views: 198

SkoolKit 9.2b1

I don't usually announce pre-releases of SkoolKit anywhere - mainly because I don't usually publish pre-releases of SkoolKit - but I'm making an exception for 9.2b1 because, unlike all previous versions, this one contains C extension modules (for faster Z80 simulation), and I'd like to make sure the...
by SkoolKid
Sat Mar 30, 2024 6:47 pm
Forum: Games/Software
Topic: What are the speech samples saying, in Auf Wiedersehen Monty?
Replies: 12
Views: 596

Re: What are the speech samples saying, in Auf Wiedersehen Monty?

Two other games where the RZX has inexplicable waiting are Robin of The Wood and Hungry Horace . Having watched the Hungry Horace RZX replay dozens of times recently (while developing the RZX player that will appear in the next version of SkoolKit), I don't think the waiting is inexplicable. <pedan...
by SkoolKid
Tue Feb 20, 2024 10:22 pm
Forum: ZXDB Discussion
Topic: Questions about "scheme types"
Replies: 3
Views: 159

Re: Questions about "scheme types"

martingzzz wrote: Mon Feb 19, 2024 11:03 am Around 60% (7369 out of 12329) of the "undetermined" downloads are tap files, meaning they have standard loaders.
Not necessarily. Some games in TAP files have custom loaders that happen to use the standard ROM timings. Removal Deluxe is a good example.
by SkoolKid
Tue Feb 13, 2024 12:46 pm
Forum: ZXDB Discussion
Topic: New Database Model ZXDB
Replies: 536
Views: 108597

Re: New Database Model ZXDB

Another ZXDB version is available! This version fails to build the database from ZXDB_sqlite.sql. It gives the following error: Parse error near line 565472: near "CHARACTER": syntax error TABLE IF NOT EXISTS prefixes ( text varchar(10) CHARACTER SET utf8 COLLATE u error here ---^ Parse e...
by SkoolKid
Fri Feb 09, 2024 5:37 pm
Forum: ZXDB Discussion
Topic: New Database Model ZXDB
Replies: 536
Views: 108597

Re: New Database Model ZXDB

Let me know if that works for you! Thanks! I've converted that for SQLite thus, which seems to work (though I need to do some further checking): create table libraries ( title varchar(300), library_title varchar(300) ); insert into libraries select title, '' from entries group by title; insert into...
by SkoolKid
Fri Feb 09, 2024 1:43 pm
Forum: ZXDB Discussion
Topic: New Database Model ZXDB
Replies: 536
Views: 108597

Re: New Database Model ZXDB

IMPORTANT: Columns "entries.library_title" and "aliases.library_title" are now removed in this release... Ouch! I've been bitten by that change. What's the quickest way to get "library_title" back (for software only, if that makes it easier) in a lookup table? I'm usin...
by SkoolKid
Mon Feb 05, 2024 10:07 pm
Forum: Programming
Topic: A library of tap2sna.py recipes
Replies: 87
Views: 3279

Re: A library of tap2sna.py recipes

Fairlight 1 and 2 (128k versions) load and run on emulators but not on real hardware. 8BitSC , presumably you opened an issue on GitHub? I'm afraid I have no idea how the DIVMMC Enjoy Pro loads Z80 snapshots, so I can't even guess what's going wrong. Perhaps someone who has knowledge of that hardwa...
by SkoolKid
Sat Feb 03, 2024 1:12 pm
Forum: Announcements
Topic: SkoolKit 9.1
Replies: 0
Views: 180

SkoolKit 9.1

SkoolKit 9.1 has been released . TL;DR version for the initiated: Improved support for 128K disassemblies, plus simulated memory and I/O contention. For the uninitiated: SkoolKit is a suite of tools that can be used to create a disassembly of a Spectrum game (or any other piece of software), in HTM...
by SkoolKid
Tue Jan 30, 2024 3:24 pm
Forum: ZX Spectrum Next
Topic: ROTW units shipping soon
Replies: 10
Views: 813

Re: ROTW units shipping soon

And it's here.

Image
by SkoolKid
Tue Jan 30, 2024 1:54 pm
Forum: ZXDB Fixes
Topic: Olympia - wrong tape
Replies: 1
Views: 140

Olympia - wrong tape

The tape for Olympia (Olympia.tap in Olympia.tap.zip) is actually a copy of the tape for Pathway (Pathway.tap in Pathway.tap.zip). (I think these tapes are both new in ZXDB 1.0.182, but I might be mistaken.)
by SkoolKid
Mon Jan 29, 2024 5:16 pm
Forum: Games/Software
Topic: zqloader
Replies: 4
Views: 294

Re: zqloader

What I meant to say: instead of "just" feeding it a TAP and hoping it can figure out how to load and start everything... I haven't used this tool, but from the documentation it looks as if you can feed it Z80 snapshots as well. Presumably its success rate is much better with snapshots tha...
by SkoolKid
Fri Jan 26, 2024 12:46 pm
Forum: ZX Spectrum Next
Topic: ROTW units shipping soon
Replies: 10
Views: 813

Re: ROTW units shipping soon

dfzx wrote: Fri Jan 26, 2024 12:39 pm You would have always expected that, though, would you not?
"Feared" would be a better word. The amount feels like a kick in the face, too.
by SkoolKid
Fri Jan 26, 2024 11:50 am
Forum: ZX Spectrum Next
Topic: ROTW units shipping soon
Replies: 10
Views: 813

Re: ROTW units shipping soon

And now I have an import duty/customs clearance bill of over $100 to pay before I can receive the package. :(
by SkoolKid
Thu Jan 25, 2024 9:43 pm
Forum: ZX Spectrum Next
Topic: ROTW units shipping soon
Replies: 10
Views: 813

Re: ROTW units shipping soon

SkoolKid wrote: Thu Jan 25, 2024 7:26 pm So I hear they're shipping now. I haven't got a tracking number yet, though. <drums fingers>
The drumming did it! I now have a tracking number.
by SkoolKid
Thu Jan 25, 2024 7:26 pm
Forum: ZX Spectrum Next
Topic: ROTW units shipping soon
Replies: 10
Views: 813

Re: ROTW units shipping soon

So I hear they're shipping now. I haven't got a tracking number yet, though. <drums fingers>
by SkoolKid
Wed Jan 24, 2024 9:39 pm
Forum: Programming
Topic: The --sim-load challenge
Replies: 10
Views: 619

Re: The --sim-load challenge

Apologies in advance to anyone who might have wanted to use --sim-load to produce a pristine snapshot of Gold Mine : It definitely won't work for the foreseeable future. Good news for anyone who might have wanted to use tap2sna.py to produce a pristine snapshot of Gold Mine from the original TZX: i...
by SkoolKid
Mon Jan 22, 2024 3:53 pm
Forum: ZXDB Fixes
Topic: Double entry found
Replies: 4
Views: 409

Re: Double entry found

Not entirely relevant, but still interesting:
These two BASIC programs are definitely different.
by SkoolKid
Fri Jan 19, 2024 8:22 pm
Forum: Programming
Topic: Contention pattern for HALT
Replies: 25
Views: 1434

Re: Contention pattern for HALT

From what you're saying, this looks like a bug in Fuse to me. Or I'm misunderstanding. Fuse exhibits the same behaviour when the HALT is at 0x7FFF, i.e. PC+1 is 0x8000, in uncontended memory: 14335, 14345 ( pc:4 for the HALT, as expected), 14353 (implying pc:4 ), 14361 ( pc:4 again), 14369, 14377.....
by SkoolKid
Fri Jan 19, 2024 7:35 pm
Forum: Programming
Topic: Contention pattern for HALT
Replies: 25
Views: 1434

Re: Contention pattern for HALT

Only the first fetch of the HALT itself. Then it executes NOPs internally, with PC already being PC+1. (So it's not like it keeps executing itself similar to LDIR, which is what people originally believed.) Are the contents of PC+1 continually fetched (with contention pattern pc:4 there too) while ...
by SkoolKid
Fri Jan 19, 2024 12:19 pm
Forum: Programming
Topic: Contention pattern for HALT
Replies: 25
Views: 1434

Re: Contention pattern for HALT

it is basically NOP, but without advancing the PC. so it's the usual... I'll take that as a yes. Fuse seems to go with pc:4 , so I will too. On an unrelated note, I didn't realise until now just how much an instruction can be delayed when it's located in and/or accesses contended memory. Take CPIR ...
by SkoolKid
Tue Jan 16, 2024 5:17 pm
Forum: Games/Software
Topic: Games Exposed
Replies: 148
Views: 7213

Re: Games Exposed

After i posted, I looked up your HTMLWriter extension docs, and it looks like that's probably the way to go. An HtmlWriter extension would be one way to go, but ...there is no established public API for mangling labels before they're rendered, so whatever modified writer you come up with may not wo...
by SkoolKid
Tue Jan 16, 2024 3:31 pm
Forum: Games/Software
Topic: Games Exposed
Replies: 148
Views: 7213

Re: Games Exposed

lexi wrote: Tue Jan 16, 2024 3:20 pm I'm running into a couple of issues with how to best handle labels for subroutines...
I'm not really sure what you're asking here, so I won't attempt an answer, but I have to ask: Are you assigning labels to instructions that aren't jumped to or called from anywhere else in the code? If so, why?
by SkoolKid
Tue Jan 16, 2024 12:36 pm
Forum: Programming
Topic: Contention pattern for HALT
Replies: 25
Views: 1434

Contention pattern for HALT

I've recently been looking into how memory contention affects Z80 instructions, using the Contended memory page of the Sinclair Wiki as my main source. However, one instruction that's missing from that page is HALT. Based on what I've already learnt, I'm guessing that HALT's contention pattern is si...