Apple-2-SW/prodos-drivers
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prodos-drivers/ns.clock
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Joshua Bell b621ac6a4d Add ROMX RTC driver, c/o Jeff Mazur. 
This is a modified version of the ROMX Real-Time Clock driver. The changes include:

* Converting the source to ca65.

* Integrating with the driver installer framework.

* Adapting the driver to not modify page 2 beyond $220. The ROMX RTC
  firmware writes bytes to $2B0, and the the original driver placed
  temp code at $250. This can conflict with ProDOS applications that
  use page 2, so the driver was reworked to save/restore anything at
  at $2B0.

Other changes:

* Add a util/ source dir, and cricket/date, quit.system and
  pause.system there.

* Pull the "print current date" logic out of clock drivers into driver
  preamble.
2021-10-05 19:58:31 -07:00
..
Makefile Only run xattr if present try 3 2021-03-07 16:35:52 -08:00
ns.clock.system.s Add ROMX RTC driver, c/o Jeff Mazur. 2021-10-05 19:58:31 -07:00
README.md Combine preamble files, .gitignore, and split out ns.clock 2019-10-03 21:49:53 -07:00

README.md

No Slot Clock ProDOS Driver

Adapted from NS.CLOCK.SYSTEM (by "CAP"), with these changes:

  • Fixes a typo
  • Removes beeps
  • Is less chatty so you can have multiple clock drivers, e.g. if you use the same hard disk image across different hardware configurations
  • Uses file I/O rather than block I/O for chaining
  • Does not hard-code driver file name