Toshiba T1100 Plus (8086 256k RAM) generating bitcoin wallets. Implementing sha256, ripemd-160, and partial ECC secp256k1 on Turbo C was a real learning experience

Posted by babtras@reddit | retrobattlestations | View on Reddit | 9 comments

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jordansinn@reddit

My other comment aside, I failed to mention how cool this is!

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babtras@reddit (OP)

thanks. now I'm wondering what it'll take to do it on a Kaypro II with a Z80

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jordansinn@reddit

Great to see this running! My T1100's power board is toast.

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that's unfortunate. probably the eventual state of all these retro PCs as they get older. I tried first on a Sharp PC-4641 but its floppy drive decided it no longer wants to work. tried on an Epson ActionNote 486 when troubleshooting so I didn't have to wait so long, it didn't work either. Ended up doing my testing and debugging on a trusty Compaq SLT/286 before copying it to this one (no HDD in this Toshiba so couldn't install Turbo C++).

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jordansinn@reddit

The drive controller is on the power board, from what I remember. We need to reverse engineer and code new drivers for the hard drives in these old machines as they don't use what came to be standard HDD's.

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babtras@reddit (OP)

I didn't think this machine could support a hard drive at all. It'd certainly be interesting if one could be added

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jordansinn@reddit

I might be mistaken on the exact model. I think I might be thinking of the T1200 or maybe I just mean a RAMdisk.

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babtras@reddit (OP)

I have an NEC ProSpeed 286 that was dead. I turned it into a Pi 4 computer. It had a hard drive in it with an abnormal JVC-branded interface so it wonder if it is the same.