Mastodawn

Óscar Toledo G.1d ago

I'm going to have a table with retro systems this Saturday and Sunday. #retro #retrogaming

Óscar Toledo G.2d ago

Human Brain Enthusiast 2d ago

honestly this would make a good tshirt

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Óscar Toledo G.3d ago

My own article gave me an idea on how to optimize the 6502 16-bit multiplication with 28% speed-up, and the calling code speed is enhanced as well. Available in the CVBasic repository https://github.com/nanochess/CVBasic

GitHub - nanochess/CVBasic: BASIC language compiler for Colecovision, MSX, SG1000/SMS, Spectravideo SVI-318/328, Creativision, Sord M5, Memotech MTX, Tatung Einstein, Casio PV-2000, Hanimex/Soundic Pencil II, and NES/Famicom.

BASIC language compiler for Colecovision, MSX, SG1000/SMS, Spectravideo SVI-318/328, Creativision, Sord M5, Memotech MTX, Tatung Einstein, Casio PV-2000, Hanimex/Soundic Pencil II, and NES/Famicom....

GitHub

Óscar Toledo G.3d ago

I wrote a small article about the development of Metro Wars for MSX2 #retro #retrogaming #msx2 https://nanochess.org/metro_wars.html

Metro Wars game for MSX2 computers

Development history of the Metro Wars game for MSX2 computers.

Óscar Toledo G.4d ago

Paula Maddox 4d ago

#LT6502b screen is now alive, just a solid block fill for now, but it’s working. 16bit colour and 1024x600.
Text will be the next thing to get working.
I will say, wow it’s a complex screen to setup.

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Óscar Toledo G.5d ago

I disassembled the Atari 130XE keyboard. Can you see the broken lines? I got conductive adhesive from Amazon (very difficult to manage!) made a very botched repair, put the hair dryer, and corrected glued lines scratching with a screwdriver. It works! #retro #retrogaming #atari

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Óscar Toledo G.5d ago

The TI99/4A keyboard works now. I just removed the key caps, put isopropilic alcohol in the holes, and punched all keys.

Óscar Toledo G.5d ago

Maybe I have too many 2764 🤪 and my hundred random TTL chips pad doesn't fit in the picture. #retro #picture #chips #ttl

Óscar Toledo G.6d ago

Paula Maddox Mar 21

Second version of #LT6502 underway, so fa so good. Powers up, all voltages are correct.
So onto soldering in cpu and bring up.
#LT6502b #retrocomputing

Óscar Toledo G.6d ago

8-bit optimization for Z80 and 6502 in 2026. Multiplication and division routines #retro #retrogaming #z80 #6502 https://nanochess.org/article_8_bit_optimization.html

8-bit optimization for Z80 and 6502 in 2026

Optimizing multiplication and division routines for Z80 and 6502 processors.

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