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Commit Graph

5 Commits

Author SHA1 Message Date
Jeff Tranter
3a5fbd34da Add KIM-1 functions to write to the 7-segment LED display and get
keypresses from the keypad.
Includes sample program illustrating how to use them.
Tested on real KIM-1 hardware.
2023-03-29 18:40:10 -04:00
Jeff Tranter
806ffe5675 Fixes and improvements to KIM-1 i/o routines.
Tested on real KIM-1 hardware.

read.s:
- Remove commented out line.
- Remove unused check for bell character.
- Remove echo of newline (hardware always echoes entered characters).
- This fixes gets() and fgets() so they return when CR is entered.

write.s:
- Fix check for adding return after linefeed (failed to work because OUTCHR changes A)
- Remove unused check for bell character.

kim1.inc:
- Add symbol for monitor entry

crt0.s:
- Jump to KIM-1 monitor by address rather than using BRK (which relies on vector being set in RAM)
2023-03-27 17:56:25 -04:00
Rutger van Bergen
3b431d9fa3 Remove trailing whitespace 2022-09-19 23:57:26 +02:00
Rutger van Bergen
cb8cb876ec Add documentation, make capitalization uniform 2022-09-19 19:56:57 +02:00
Dave Plummer
799aec23a6 Add KIM-1 Support 2022-06-04 13:00:48 -07:00