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foss-eda-tools / third_party / shuttle / gf180mcu / mpw-000 / slot-027 / b57df286575f43a977f249962be74181897bce6f
commitb57df286575f43a977f249962be74181897bce6f[log] [tgz]
authorLuca Horn <l.horn@geiger-edelmetalle.de>Wed Dec 07 16:45:32 2022 +0100
committerLuca Horn <l.horn@geiger-edelmetalle.de>Wed Dec 07 16:45:32 2022 +0100
tree3d9afc97d842e6b1b6618785ea51197e050b4731
parentddb8c9cd9d3b98571e32a2023a1b05e516528651 [diff]
Add missing files, fix badge in README.
3 files changed
tree: 3d9afc97d842e6b1b6618785ea51197e050b4731
  1. .github/
  2. cocotb_tests/
  3. def/
  4. docs/
  5. gds/
  6. lef/
  7. lib/
  8. mag/
  9. maglef/
  10. openlane/
  11. sdc/
  12. sdf/
  13. signoff/
  14. spef/
  15. spi/
  16. verilog/
  17. .gitignore
  18. gds2gltf.py
  19. LICENSE
  20. Makefile
  21. README.md
README.md

Avalon Semiconductors AS2650 8-bit micro-processor

License CI

This is a partial implementation of the abandoned Signetics 2650 CPU architecture from 1975.

Only a subset of the full feature set is implemented here. The following features are part of the S2650, but missing from the SA2650:

  • Interrupts
  • Decimal Adjust Register (dar) instructions
  • Extended I/O (wrte, rede) instructions
  • Memory paging (address space limited to 8192 bytes, emulating a S2650 that is ‘stuck’ on page 0)

Please see this repository for Documentation on the CPU architecture, as well as an assembler, emulator and example programs.