Search found 6 matches

by mcoder
Wed Oct 31, 2007 3:20 pm
Forum: Mags and books
Topic: Searching for "L'Oric a nu."
Replies: 21
Views: 25172

Re: Searching for "L'Oric a nu."

Silicebit. wrote:Somebody know if exist a pdf archive of "L'Oric a nu" by Fabrice Broche?.
To my knowledge, no, but I have the book.
by mcoder
Wed Oct 17, 2007 4:04 pm
Forum: 6502 assembly coding
Topic: Optimizations
Replies: 5
Views: 8508

cf. http://www.6502.org/source/ for optimized code. and http://www.6502.org/tutorials/ Yes, I know these links. 2 algorithms exist for multiplying two 16 bits numbers. One shifts to the right, and the other one shifts to the left. The interesting fact is that one of these 2 methods allow a multipli...
by mcoder
Mon Oct 15, 2007 11:06 am
Forum: 6502 assembly coding
Topic: Optimizations
Replies: 5
Views: 8508

Optimizations

If several people are interested, I can provide a list of optimizations. The best code I disassembled while I was on Oric was the game Painter (I remember I was very happy to find a small optimization in the code). I also spent a lot of time disassembling the Basic ROM (from Microsoft), and optimize...
by mcoder
Mon Oct 15, 2007 10:48 am
Forum: 6502 assembly coding
Topic: Detecting tape signal
Replies: 6
Views: 9575

Thanks for the replies. There are plenty of synch bytes in the standard signal that should avoid any data loss. It's also possible to shorten it (by reprogramming the loading routines) according to the Oric's detection speed. Now I guess I have to learn how interrputs can be programed :) I wrote su...
by mcoder
Sun Oct 14, 2007 10:34 pm
Forum: General Discussion
Topic: Unreleased programs
Replies: 3
Views: 4346

Hi there, http://mercenarysite.free.fr/oric/oric_transfers.html Wow ! I remember I worked near December 1984 or 1985 at the duplicator of Cobra Pinball, simply because I was trying to finish Lunar Lander (the protection was not copiable, because I used some weird format). Too bad it's not restored,...
by mcoder
Sat Oct 13, 2007 10:18 pm
Forum: General Discussion
Topic: Unreleased programs
Replies: 3
Views: 4346

Unreleased programs

Ok, I have several cassettes here. They contain 2 unreleased games (one vertical scroll game and an action game), plus several tools, like my own assembler (OrBit). The games are Lunar Lander (Epsilon Software), and One (Titus). I'm in search of somebody who is willing to dump these. Preferably near...