{"id":406,"date":"2026-02-10T19:52:26","date_gmt":"2026-02-10T19:52:26","guid":{"rendered":"https:\/\/www.maddox.pro\/?p=406"},"modified":"2026-02-10T19:52:26","modified_gmt":"2026-02-10T19:52:26","slug":"lt6502","status":"publish","type":"post","link":"https:\/\/www.maddox.pro\/?p=406","title":{"rendered":"LT6502"},"content":{"rendered":"\n

Building on the PC6502 system I decided to make a laptop 6502 system. I think there’s something nice about having a portable retro system that is fully self contained.<\/p>\n\n\n\n

It’s going very well so far. It’s been quite a steep learning curve. I’ve been remembering the 6502 assembly coding I did back in the 1980s, slowly remembering.<\/p>\n\n\n\n

It’s been fun to bring the system up one bit at a time, starting EhBASIC, getting teh display working, the beeper and compact flash.<\/p>\n\n\n\n

So here is where I’m at;<\/p>\n\n\n\n

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Here was the test of the comms with the keyboard, a simple “HELLO” from basic, which is being controlled by the console port (left hand side).<\/p>\n\n\n\n

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Next was getting the boot menu to ask if you wants a Cold, Warm or Monitor boot. <\/p>\n\n\n\n

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The really big milestone was getting the screen working. This was a lot of work, but so worth it. There were very definitely moments where I didn’t think I could get it working. Getting the scrolling working was probably the hardest. But I got it in the end.<\/p>\n\n\n\n