forked from amberisvibin/chibi-pc09
22 lines
1.0 KiB
Markdown
22 lines
1.0 KiB
Markdown
# bedroom Z80
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### Description:
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The bedroom Z80 is a Z80-based microcomputer with an advanced I/O system, boot scheme, and graphics hardware:
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- On boot, the coldboot ROM will search a FAT SD card for a bootfile, load it into RAM, and execute it. Due to a quirk in the way the Z80 (and CP/M) operates, once the ROM has finished its work, it will remove itself from the memory address space.
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- It will be able to recognise a signifigant number of I/O devices. One recognised, the I/O device will be assigned an area of I/O space, and a driver will be loaded to communicate with the device.
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- The graphics system will be more advanced than most homebrew computer projects. It will have a custom TTL logic graphics card that will be able to display 320x200 in 256 colours, or 640x400 in 4 shades of grey over VGA. Possible other modes include 320x400 or 640x200 in 16 colours, from the 256 colour palette.
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### Todo:
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- Design mainboard
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- Design graphics board
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- Program ROM
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- Port software (customized [FUZIX](https://github.com/EtchedPixels/FUZIX))?
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