diff options
| author | Julian Blake Kongslie | 2021-12-05 15:16:41 -0800 |
|---|---|---|
| committer | Julian Blake Kongslie | 2021-12-05 15:16:41 -0800 |
| commit | ca0c557e2c61e2fc6cc97482a17f68fd2ee61392 (patch) | |
| tree | f24926619e8e953a38250af02973b18cb0bede0e /PLAN | |
| parent | Interrupt-driven keyboard input. (diff) | |
| download | noncpu-ca0c557e2c61e2fc6cc97482a17f68fd2ee61392.tar.xz | |
Implement DF and IF, and Dep and Exam switches.
Diffstat (limited to '')
| -rw-r--r-- | PLAN | 12 |
1 files changed, 0 insertions, 12 deletions
| @@ -1,11 +1,5 @@ | |||
| 1 | Turn on blinkenlights from the PDP core | 1 | Turn on blinkenlights from the PDP core |
| 2 | 2 | ||
| 3 | Implement switch features: | ||
| 4 | Deposit - needs a state machine | ||
| 5 | [pc++] = switch_sr | ||
| 6 | Examine - needs a state machine | ||
| 7 | led_memdata = [pc++] | ||
| 8 | |||
| 9 | Implement remaining TTY output instructions | 3 | Implement remaining TTY output instructions |
| 10 | 4 | ||
| 11 | Jules thinks clock is most likely interrupt source | 5 | Jules thinks clock is most likely interrupt source |
| @@ -17,9 +11,3 @@ Sources of interrupts observed: | |||
| 17 | TTO ready for output interrupt - this looks like a very likely candidate | 11 | TTO ready for output interrupt - this looks like a very likely candidate |
| 18 | TTI input ready interrupt - this looks like a very likely candidate | 12 | TTI input ready interrupt - this looks like a very likely candidate |
| 19 | Looks like these happen even when there is no input available - might be caused by the program itself doing something a little funny | 13 | Looks like these happen even when there is no input available - might be caused by the program itself doing something a little funny |
| 20 | |||
| 21 | Implement IF/DF fields | ||
| 22 | Will need to update behaviour of switch_load_add | ||
| 23 | |||
| 24 | Add a macro for reversing polarity of switch_sing_step and switch_sing_inst and | ||
| 25 | making switch_dep happen on key lift instead of key press | ||