Acorn Atom hardware with a 16 bit risc and 16 bit databus.
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AtomOS
OS0.01
PIA8255
compiler
docs
flashmem
generated
m6522
spi
utils
vga
16bitAtom.v
LICENCE.txt
Makefile
README.md
cpu.v
cpu2.v
icoboard.pcf
pll.v

README.md

16bit-atom

Hardware platform based on the Acorn Atom With a twist: the data bus is 16 bit. By replacing the 6502 with a 16 bit risc cpu we have 128Kb memory space. Initial steps were:

  • design a 16 bit risc cpu (still evolving)
  • write an assembler parser in python (for testing the cpu)
  • reuse the Acorn Atom as target platform (easiest way to have I/O)
  • write a compiler that can output assembler