Search found 4648 matches

by Mike
Tue Dec 31, 2013 9:13 am
Forum: Programming
Topic: Fun with CBM arithmetics
Replies: 33
Views: 25677

Re: Fun with CBM arithmetics

Seems like we're zeroing in on the bug. I had hopes it would 'only' be the conversion routine which was broken, but it's (sadly) most probably the multiplication at fault: :( 1 A=.75+59E-9 2 PRINTA*1E9-7.5E8,1E9*A-7.5E8 3 PRINT(A+0)*(1E9+0)-7.5E8,(1E9+0)*(A+0)-7.5E8 4 PRINT(A*1)*(1E9*1)-7.5E8,(1E9*1...
by Mike
Sat Dec 28, 2013 11:17 am
Forum: International VIC
Topic: Listings aus CPU im Roeske Verlag (GER)
Replies: 4
Views: 4866

Re: Listings aus CPU im Roeske Verlag (GER)

Abschließendes Update: Auch Froschfänger ist in der Zwischenzeit aufgetaucht. Es war tatsächlich in Ausgabe 11/84 der CPU abgedruckt worden. Zusammen mit Zauberwald und 19 weiteren Spielen gibt es jetzt " Mike's unexpanded type-in collection " mit Auswahlmenü. Ende gut, Alles gut! :mrgreen...
by Mike
Sat Dec 28, 2013 8:00 am
Forum: General Topics
Topic: Forum moved to new host
Replies: 78
Views: 18129

Re: Forum moved to new host

At least for me, the internal links containing "[...]sleepingelephant.com/ipw-web/bulletin/bb/[...]" now function again correctly! :D :D :D There are some older (internal) links with "[...]/v-web/bulletin/bb/[...]", which wouldn't work - but they are only far and in-between. In a...
by Mike
Wed Dec 25, 2013 12:43 pm
Forum: Other Systems
Topic: Not quite... The end of the ROM based PLA for the 64
Replies: 344
Views: 104056

Re: The end of the ROM based PLA for the 64

craftsman1234 wrote:Will it also work in a Vic-20?
The VIC-20 has no (single chip) PLA to generate the various chip select and other timing signals, that job is done by several TTL chips.
by Mike
Mon Dec 23, 2013 7:42 am
Forum: Announcement Board
Topic: VIC-20 Software Releases of 2013
Replies: 40
Views: 50322

Name: Mike's unexpanded type-in collection Author: Mike Released: December 23rd, 2013 Requirements: unexpanded VIC-20 and disk drive to play the games, +24K RAM expansion for the READ ME Description: 21 games for the unexpanded VIC-20 Screenshot: https://dateipfa.de/.Public/denial/images/minigrafik/...
by Mike
Mon Dec 23, 2013 7:33 am
Forum: Games
Topic: New Release: Mike's unexpanded type-in collection
Replies: 8
Views: 6600

New Release: Mike's unexpanded type-in collection

Hi, y'all! It's the right time of the year to make this a proper release... finally it's there - my very own collection of 21 games (mostly type-ins) for the unexpanded VIC-20! ( download ): https://dateipfa.de/.Public/denial/images/minigrafik/313.png As Donald's 313 or the VW Beetle (where the Germ...
by Mike
Sun Dec 22, 2013 3:37 pm
Forum: Programming
Topic: Challenge: Create or Delete Lines from inside a program
Replies: 27
Views: 4582

Re: Challenge: Create or Delete Lines from inside a program

Would Photoshop for Windows make MINIGRAFIK for the VIC irrational? It probably would, if it were not for the fact that Photoshop and its kind do not provide substantial help to actually import images/pictures into the VIC-20. Given the premise, that all this is still about programs/games/applicati...
by Mike
Sun Dec 22, 2013 2:22 pm
Forum: Programming
Topic: Challenge: Create or Delete Lines from inside a program
Replies: 27
Views: 4582

Re: Challenge: Create or Delete Lines from inside a program

Yet you keep soliciting for help which constantly 'requires' you to think out of the box. A good deal of your problems turn to non-issues once you'd use a better set of tools. Sometimes you behave like a strange mechanic who not only insists to tap threads into the bare metal (which is quite usual),...
by Mike
Thu Dec 19, 2013 3:04 pm
Forum: General Topics
Topic: Forum moved to new host
Replies: 78
Views: 18129

Re: Forum moved to new host

Works for me. You should try to clear the browser cache (joshuadenmark hinted at changes of the browser cookies for the forum).
by Mike
Wed Dec 18, 2013 8:56 am
Forum: Games
Topic: New Release: Doom
Replies: 328
Views: 95761

Re: WIP: Doom

Judging from a thread over at lemon64, VIC Doom is already gaining a good reputation as RAM testing tool. :lol: One should say thank you to Torsten for pointing out there that TDE isn't needed in VICE (after all, VIC Doom runs happily from SD2IEC devices as well), and 32K + 3K RAM expansions *are* r...
by Mike
Wed Dec 18, 2013 4:31 am
Forum: Programming
Topic: Challenge: Create or Delete Lines from inside a program
Replies: 27
Views: 4582

Re: Challenge: Create or Delete Lines from inside a program

It requires the use of the Programmer's Aid cart. [...] ... which, for one, is contained in the Mega-Cart. I know you own one. Especially the toolkit of the Programmer's Aid cart is only used during program development. All the commands can only be used from direct mode. Which also means that a pro...
by Mike
Mon Dec 16, 2013 3:59 am
Forum: Hardware and Tech
Topic: Suggestions for GP cart
Replies: 18
Views: 3003

Re: Suggestions for GP cart

Can you point to a link or document that explains the idiosyncrasies? Main issue was, that in Super-RAM mode, the RAM could only be switched in whole 32K blocks, which made the implemenation of the RAM Disk (or any other use) difficult to say the least. * I found 8Mb (1MB) RAM and FLASH for not a t...
by Mike
Mon Dec 16, 2013 3:10 am
Forum: Games
Topic: Release: Pooyan
Replies: 18
Views: 10465

Re: Release: Pooyan

Nice! :D

When I played a second stint (and I did considerably better than on my first try), the game didn't update the high-score display.
by Mike
Sun Dec 15, 2013 4:04 pm
Forum: Programming
Topic: Fun with CBM arithmetics
Replies: 33
Views: 25677

Re: Fun with CBM arithmetics

and dont forget that the typical error is 1 or 2 _binary_ units (powers of two!) Yes, that's what I meant in the first place. well, i dont know according to what standard (if any) the floats in cbm basic have been implemented, so its hard to tell whether this is acceptable or not. The implementatio...
by Mike
Sun Dec 15, 2013 2:45 am
Forum: Programming
Topic: Fun with CBM arithmetics
Replies: 33
Views: 25677

Re: Fun with CBM arithmetics

groepaz, this is not just the occasional rounding error with 1, maybe 2 units wrong in the lowest place we're talking about here. It's a *defect* in the float to ASCII conversion which happens under reproducable circumstances and which, when happens, outputs a grossly wrong result. If you enter PRIN...