#td4

triring.bsky.social

@triring.bsky.social

1 week ago

【新製品リリース】CPUの仕組みを解き明かす！論理ゲートから創る自作CPU 学習キット TTM33月23日発売！書籍もあるよ！ | Bit Trade One 「CPUの中身はどうなっているのか？」という疑問に、ブラックボックスなしの純粋な回路で答えるのが、この「TTM3」です。ロジックICを組み合わせ、ALU（演算装置）、レジスタ、制御回路といった基本構造を自らの手で組み立てることで、現代のコンピュータを支える論理演算の仕組みをダイレクトに体感できます。

論理ゲートから創る自作CPU 学習キット #TTM3

ロジックICでつくるCPUキットか。
4bitCPUの #TD4 のような感じかな。
今月下旬に発売のようだ。

bit-trade-one.co.jp/blog/20260302/

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メタレド@blue sky版

@metared19.bsky.social

1 week ago

2026年冬アニメ＆特撮簡易感想　その24 - 新・メタレドの楽しんだもん勝ち！ 憂鬱なアイロニー (TV ver) FOCUS ONE RECORDS Amazon www.youtube.com 一つ一つ散らばるキー集めて決められた運命を切り裂け*1 現在放送＆配信中の特撮ドラマ『BEAT RUNNERS(ビートランナーズ)』。その重要要素である音楽を担うロボットユニット・Tear.Drop.4（TD4）が歌う劇中歌「憂鬱なアイロニー」のMV動画が先日公開されました。...

今季のアニメの感想を更新しました。
#BEATRUNNERS
#メダリスト
 #strangefake
#東島ライダー
 #BEATBREAK
#TD4

2026年冬アニメ＆特撮簡易感想　その24 - 新・メタレドの楽しんだもん勝ち！

metared19.hatenablog.com/entry/2026/0...

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diyelectromusic

@diyelectromusic.mastodon.social.ap.brid.gy

1 month ago

A appear to have created a "sound card" for a 4-bit CPU.

As you do.

https://diyelectromusic.com/2026/01/31/td4-4-bit-sound/

#TD4 #SynthDIY

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triring.bsky.social

@triring.bsky.social

1 month ago

td4-tools/td4emu at main · triring/td4-tools This project is a toolset created to support learning and development of the TD4, a 4-bit CPU made famous by Iku Watanami in his book [How to Create a CPU](https://book.mynavi.jp/ec/products/detail...

#Go言語で作成した #4bitCPU #TD4 のエミュレータをバージョンアップ
デバッグ用にブレークポイント機能を追加しました。
ブレークポイントを設定して、トレース実行や連続実行を行うと、必要な位置で停止させてレジスタ内容等を確認できます。
#go #golang
github.com/triring/td4-...

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triring.bsky.social

@triring.bsky.social

2 months ago

GitHub - triring/td4-tools: This project is a toolset created to support learning and development of the TD4, a 4-bit CPU made famous by Iku Watanami in his book [How to Create a CPU](https://book.myn... This project is a toolset created to support learning and development of the TD4, a 4-bit CPU made famous by Iku Watanami in his book [How to Create a CPU](https://book.mynavi.jp/ec/products/detail...

#Go言語であの伝説の4bitCPU #TD4 のアセンブラとエミュレータを作りました。
Go言語のお勉強とGoogle Geminiの開発支援機能を試してみるのが目的で作ったので、実用性はありません。
なにせ、メモリ空間が16バイトしかないのだから、、、

#golang
github.com/triring/td4-...

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Kevin

@emalliab.bsky.social

3 months ago

Parts 6 and 7 show how to replace the ROM with a microcontroller and then create a dynamic assembler to change the code directly "on the fly".

emalliab.wordpress.com/2025/11/21/t...

#TD4 #Arduino #4bit

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Kevin

@emalliab.bsky.social

4 months ago

Here is a custom PCB version of the 4-bit TD4 with the LED bling built-in.

emalliab.wordpress.com/2025/10/29/t...

makertube.net/w/beyW1XWnp4...

#TD4

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UK Classic Cars (ukcc.bs247.net)

@ukclassiccars.bsky.social

4 months ago

Landrover Freelander Sport TD4 2004 2L - Good Running Order Seller: squishio2 (100.0% positive feedback) Location: GB Condition: Used Buy It Now

Ad: For Sale - Landrover Freelander Sport TD4 2004 2L - Good Running Order #Landrover #Freelander #TD4

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Kevin

@emalliab.bsky.social

5 months ago

Photo of a cheap TD4 kit with some added LEDS. There are two 6-LED modules added on top of the A and B register chips, and four additional individual LEDs soldered onto the underside of the board just poking out on the right, one for each row of ROM instruction DIP switches. Some of each of the LEDs are illuminated along with the existing LEDs for the OUTPUT register that are built into the original board.

Now with added bling! Part 4 has some simple hardware mods that add LEDs in some useful places to help debugging.

emalliab.wordpress.com/2025/10/05/t...

#TD4

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Kevin

@emalliab.bsky.social

5 months ago

TD4 4-bit DIY CPU – Part 3 Having now spent some time thinking about and building my TD4 4-bit CPU this has a look at some code that I can run on it. Part 1 – Introduction, Discussion and Analysis Part 2 – B…

And now with some notes on programming and some example programs.

BTW - Anyone think of a way to multiply two numbers given only two registers and no other storage...?

emalliab.wordpress.com/2025/10/01/t...

#TD4

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Kevin

@emalliab.bsky.social

5 months ago

Photo of a fully populated TD4 PCB. There are 16 blue 8-way DIP switches in a 4x4 grid, each with a corresponding 8 diodes - yes I really had to solder 128 diodes. There are 13 ICs, a few resistors and some miscellaneous components.

It works!

Details here: emalliab.wordpress.com/2025/09/28/t...

#TD4

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Kevin

@emalliab.bsky.social

5 months ago

TD4 4-bit DIY CPU I was looking for DIY CPU projects, as I like kits that help me think at the lowest level of processing. It helps keep me grounded in how far technology has come over the years. Some of the options…

Figuring out how the TD4 4-bit DIY CPU works.

When mine arrives in the post, I'll see for real what it can do (assuming it doesn't drive me mad soldering all those diodes)!

emalliab.wordpress.com/2025/09/18/t...

#TD4

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UK Classic Cars (ukcc.bs247.net)

@ukclassiccars.bsky.social

9 months ago