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)