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* vt52: Draw characters on screen; add notes about processor architecture AJR2020-01-104-13/+187
* vt50_cpu: Minor note (nw) AJR2020-01-071-0/+3
* vt52: Misc. notes and things (nw) AJR2019-12-242-2/+2
* vt52: Many updates (nw) AJR2019-12-222-4/+32
* vt5x_cpu: Add more callbacks; note that VT52 doesn't seem to support the key ... AJR2019-12-222-4/+12
* vt5x_cpu: Preliminary video timing chain (nw) AJR2019-12-222-17/+62
* vt52: Fill in and fix a whole bunch of things (nw) AJR2019-12-213-20/+74
* vt52: Add debug state register to show address translation; minor adjustments... AJR2019-12-212-4/+9
* vt5x_cpu: Change register name (nw) AJR2019-12-192-9/+9
* vt52: Add bell (not working now) (nw) AJR2019-12-182-2/+13
* vt52: Add keyboard (nw) AJR2019-12-182-2/+6
* vt52_cpu: Add RAM instructions and UART interface (nw) AJR2019-12-182-13/+172
* vt52: Extremely preliminary CPU execution (many instructions still unimplemen... AJR2019-12-183-3/+317
* New machines marked as NOT_WORKING AJR2019-12-184-0/+384