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6502 reading bytes from a Floppy Disk Drive 

George Foot
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8 сен 2024

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Комментарии : 15   
@AndersNielsenAA
@AndersNielsenAA Год назад
Good job! Happy to see I’m not the only one using lower case for labels and mnemonics 😂 I was wondering why your code seems extra easy to read. So sad you’re 40 years late sending it off to a fab when you’re done with it. Would’ve liked to see it end up as an ic - I guess we can cheat and encase an FPGA in a dip40 when you’re done with it 😊
@brettb.345
@brettb.345 Год назад
Most impressive. Always a joy to watch your videos. And I learn something too. 😊
@GeorgeFoot
@GeorgeFoot Год назад
Thanks Brett! I'm looking forward to reading some useful data next!
@jennyandres6199
@jennyandres6199 Год назад
Installed, everything works, thanks!
@dr.deathvolt3058
@dr.deathvolt3058 Год назад
Awesome video ❤️
@matthewpeterson5159
@matthewpeterson5159 Год назад
love it!
@scottlarson1548
@scottlarson1548 Год назад
It would have been helpful to review what the lines to the floppy drives do before you began . Some of us haven't messed around with a floppy drive at the hardware level for decades.
@GeorgeFoot
@GeorgeFoot Год назад
Hi Scott, I covered those in detail in an earlier video, I'll see if I can get a popup link to work in a bit, but it's only a few videos ago
@scottlarson1548
@scottlarson1548 Год назад
@@GeorgeFoot Yes, it turns out I watched that video several months ago and I have completely forgot I had ever seen it. Also, I don't really want to rewatch a half-hour video just review the basics of what you're doing for this video. There's just a few lines on the floppy connector that need short explanations otherwise everything you're doing in this video is a mystery.
@GeorgeFoot
@GeorgeFoot Год назад
Thanks for the feedback, it is hard to strike the right balance. I nearly cut the explanations out of last week's video as well when editing.
@catgirlQueer
@catgirlQueer Год назад
really cool! are you planning on putting a filesystem on it at any point?
@GeorgeFoot
@GeorgeFoot Год назад
Thanks! I'll probably read the BBC Micro DFS format to begin with, as it's easy for me to get data onto discs in that format.
@Aruneh
@Aruneh Год назад
Soon you can just have a ROM that boots software off disk, no more taking the ROM in and out!
@GeorgeFoot
@GeorgeFoot Год назад
Haha yes. I actually thought I could rig the floppy hardware to just copy a sector to RAM during the reset, a bit like I do in my ARM computer to copy from ROM to RAM - then no ROM would be needed at all. Unfortunately it's probably easier to get data onto the ROM than it is to get it onto a disk...
@PeetHobby
@PeetHobby Год назад
Breadboards are messy, all those extra inductances of all those wires, that is why those circuits get problem after couple of MHz.
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