Kelvin Sherlock
186d71de47
print the cancel character for ^X and ^Z.
...
based on testing, this applies to vt52 and vt100.
use the current x pos to choose between $56 and $57 (mouse text checkerboard)
so multiple characters look pretty.
2022-01-17 13:13:07 -05:00
Kelvin Sherlock
1cc501e72a
buffer outgoing keystrokes
...
this also adds a hexdump in the CDA for the outgoing buffer
in local mode, "incoming" data is read from the outgoing buffer.
Currently data is (potentially) sent on each run of the main loop.
I thought about using the TX empty interrupt but it still needs to be
kicked off at some point (unlike incoming data)
2022-01-15 15:59:29 -05:00
Kelvin Sherlock
f486bbfb1b
don't re-enable the cursor blink while there is still pending modem data. this improves performance and visuals.
2022-01-09 19:38:25 -05:00
Kelvin Sherlock
0d64af63d2
move direct page so it's accessible to CDA
...
CDA shows direct page variables
move SCC setup to be table-based
esc c reset support.
2021-10-25 13:17:47 -04:00
Kelvin Sherlock
77ec62a091
at 2.6mhz, 9600baud, I was experiencing lost characters during line scroll or screen clear. To compensate, replace modem polling with asynchronous/interrupt-based code. Up to 256 bytes of modem data can be buffered.
...
Also, enable modem, vt100 as default
Also, erase screen before switching to 80-column mode to prevent unsightly flashes.
2021-10-24 20:13:06 -04:00
Kelvin Sherlock
26ceb7aa50
start of a CDA to control vt100 parameters.
2021-10-23 12:25:20 -04:00
Kelvin Sherlock
31394e84c4
backspace in column 0 was falling through to tab.
2021-10-03 16:09:39 -04:00
Kelvin Sherlock
6c8da61822
^G beep support. uses ensoniq to match the vt100 beep.
2021-10-03 16:09:20 -04:00
Kelvin Sherlock
63cac578bd
vt52 might be more or less complete now.
2021-09-24 21:52:42 -04:00
Kelvin Sherlock
73722a2c02
enable cursor, some fixes
2021-09-23 23:43:25 -04:00
Kelvin Sherlock
1b2ac595d7
fixes
2021-09-23 17:16:10 -04:00
Kelvin Sherlock
e9e969a56b
tab/keypad fixes
2021-09-21 23:40:22 -04:00
Kelvin Sherlock
6abf2574e3
fixes.
2021-09-21 22:35:33 -04:00
Kelvin Sherlock
dfdf608018
more code
2021-09-20 22:45:02 -04:00
Kelvin Sherlock
9c526bd762
more stuff
2021-09-19 18:49:29 -04:00
Kelvin Sherlock
6e0de284e0
more vt100 code
...
to handle DECAWM mode, bit 7 of x ($80 + 79) indicates a wrap is imminent, as opposed to just being in column 79. backspace, etc will drop back to column 78 (based on testing).
2021-09-17 19:50:56 -04:00
Kelvin Sherlock
073813c199
more updates.
2021-09-05 17:04:52 -04:00
Kelvin Sherlock
492a3bfbec
adding everything in progress, regardless of state.
2021-09-04 17:52:35 -04:00
