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Jonas Eschenburg

@indyjonas • 1,266 subscribers

Brought DOOM and Command&Conquer to the Atari ST. #robotics, #fp, #gamedev, #demoscene, #16bit.

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This demo is how I started retrocoding in 2024, and I'm still proud of all the hand-optimized m68k assembly I created. This is a VoxelSpace implementation running on a stock 8MHz 68000, 1MB RAM, 16 color Atari STe. I hope Kyle Freeman approves :)

This demo is how I started retrocoding in 2024, and I'm still proud of all the hand-optimized m68k assembly I created. This is a VoxelSpace implementation running on a stock 8MHz 68000, 1MB RAM, 16 color Atari STe. I hope Kyle Freeman approves :)

Jonas Eschenburg

37,405 Aufrufe • vor 2 Monaten

In my Atari ST video codec, the decoder maintains a codebook of small tiles out of which the video frames are composed. A certain number of tiles, here 32, are updated every frame, replacing less useful ones. This approach allows for high performance and decent compression.

In my Atari ST video codec, the decoder maintains a codebook of small tiles out of which the video frames are composed. A certain number of tiles, here 32, are updated every frame, replacing less useful ones. This approach allows for high performance and decent compression.

Jonas Eschenburg

27,226 Aufrufe • vor 1 Monat

Command & Conquer intro and how it is encoded for playback on a 1989 Atari STe, in beautiful 16 colors.

Command & Conquer intro and how it is encoded for playback on a 1989 Atari STe, in beautiful 16 colors.

Jonas Eschenburg

23,834 Aufrufe • vor 1 Monat

The lost art of color quantization. Reducing 256 colors to a palette of 16 using Simulated Annealing. The solution represents a compromise between covering the color gamut and reducing noise caused by dithering.

The lost art of color quantization. Reducing 256 colors to a palette of 16 using Simulated Annealing. The solution represents a compromise between covering the color gamut and reducing noise caused by dithering.

Jonas Eschenburg

27,254 Aufrufe • vor 2 Monaten

The world had to wait for 30 years. Here it is, at last: Command & Conquer for the Atari ST!

The world had to wait for 30 years. Here it is, at last: Command & Conquer for the Atari ST!

Jonas Eschenburg

23,860 Aufrufe • vor 3 Monaten

Command & Conquer for Atari ST 0.2.2 is out! TOS 1.x malloc fix, sidebar pip clipping, stability for 4MB machines.

Command & Conquer for Atari ST 0.2.2 is out! TOS 1.x malloc fix, sidebar pip clipping, stability for 4MB machines.

Jonas Eschenburg

11,659 Aufrufe • vor 1 Monat

Command&Conquer on Atari ST(e): Gameplay, mission debriefing and map selection. Work in progress.

Command&Conquer on Atari ST(e): Gameplay, mission debriefing and map selection. Work in progress.

Jonas Eschenburg

10,556 Aufrufe • vor 3 Monaten

DOOM on Atari ST! To be fair, an emulated one with a 32MHz Motorola 68060. The memory limit is now down to 4MB so this could actually run on real hardware. Let's start optimization from here.

DOOM on Atari ST! To be fair, an emulated one with a 32MHz Motorola 68060. The memory limit is now down to 4MB so this could actually run on real hardware. Let's start optimization from here.

Jonas Eschenburg

12,803 Aufrufe • vor 1 Jahr

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