Difference between revisions of "PDP-9 control memory"
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| + | ===Wiring matrix=== | ||
[[Image:PDP-9_microcode_schematic.png|left|PDP-9 control memory wiring matrix.]] | [[Image:PDP-9_microcode_schematic.png|left|PDP-9 control memory wiring matrix.]] | ||
| + | <br clear=all> | ||
| + | |||
| + | ===Program listing=== | ||
[[Image:PDP-9_microcode_listing.png|left|PDP-9 control memory listing.]] | [[Image:PDP-9_microcode_listing.png|left|PDP-9 control memory listing.]] | ||
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<br clear=all> | <br clear=all> | ||
| + | ===Decoded to binary and symbolic form=== | ||
{| class="wikitable" | {| class="wikitable" | ||
! Address || Process word bits || Symbolic description | ! Address || Process word bits || Symbolic description | ||
Revision as of 08:53, 17 July 2023
Description of the PDP-9 control memory contents.
Wiring matrix
Program listing
Decoded to binary and symbolic form
| Address | Process word bits | Symbolic description |
|---|---|---|
| 00 | 000000000000000000000000000000000000 | CMA/00 |
| 01 | 000010000000000000000000101010001100 | MBI ADSO SM CMA/25 |
| 02 | 000000000100000000000000110110001000 | ARO SM CMA/33 |
| 03 | 000010000100000000000000101010011000 | MBI ARO +1 SM CMA/25 |
| 04 | 000000000000000000000000000000000000 | CMA/00 |
| 05 | 000010010010000010100000101110100010 | MBI ACI ARI MQI LI KEY CONT CMA/27 |
| 06 | 000010000000010000000000100010001100 | MBI PCI ADSO SM CMA/21 |
| 07 | 000010000100000000000000100100110000 | MBI ARO +1 CONT CMA/22 |
| 10 | 000000000000100000000000100010001000 | PCO SM CMA/21 |
| 11 | 000000001000000000000000110001001000 | IRI EXT SM CMA/30 |
| 12 | 000000101010000000000000101000000000 | ACO IRI ARI CMA/24 |
| 13 | 000000000010000000000000011100100000 | ARI CONT CMA/16 |
| 14 | 000000000100000000000000111110001000 | ARO SM CMA/37 |
| 15 | 000000000000000000000000000000000000 | CMA/00 |
| 16 | 000000000000000000000000111100001000 | SM CMA/36 |
| 17 | 000100000000000000000100010000000000 | MBO DONE CMA/10 |
| 20 | 000000000000000000000100010000100000 | DONE CONT CMA/10 |
| 21 | 000100000000010000000000010100110000 | MBO PCI +1 CONT CMA/12 |
| 22 | 000100010010010010000000001110000100 | MBO ACI ARI PCI MQI ADSO CMA/07 |
| 23 | 000100000001000000000001100000110000 | MBO CJIT +1 CONT CMA/60 |
| 24 | 000000000000000000001000110000001000 | TI SM CMA/30 |
| 25 | 000100000010000000000000101100000010 | MBO ARI KEY CMA/26 |
| 26 | 000000000000100000000000100010001000 | PCO SM CMA/21 |
| 27 | 000000000000000000000000000000000000 | CMA/00 |
| 30 | 000000000001000001000001100000000000 | CJIT DEI CMA/60 |
| 31 | 000000000000000001000000101000000000 | DEI CMA/24 |
| 32 | 000000000010100000000000100110100000 | ARI PCO CONT CMA/23 |
| 33 | 000000001000000000000000101000000000 | IRI CMA/24 |
| 34 | 000100000010000000000000010000010001 | MBO ARI +1 DCH CMA/10 |
| 35 | 000000000000000000000000000000000000 | CMA/00 |
| 36 | 000000000000000000000000011110000001 | DCH CMA/17 |
| 37 | 000000000000000000000000010110000001 | DCH CMA/13 |
| 40 | 010000000000000000000100010000000000 | EAE DONE CMA/10 |
| 41 | 010000100000000010000001011000100000 | EAE ACO MQI CONT CMA/54 |
| 42 | 001000100000000010000001011010100000 | EAE-R ACO MQI CONT CMA/55 |
| 43 | 010000010000000000000001000010100000 | EAE ACI CONT CMA/41 |
| 44 | 000000000000000000000000000000000000 | CMA/00 |
| 45 | 000000000000000000000000000000000000 | CMA/00 |
| 46 | 000000000000000000000000000000000000 | CMA/00 |
| 47 | 000000000000000000000000000000000000 | CMA/00 |
| 50 | 000000000010001100000001000100100000 | ARI EAE-P MQO CONT CMA/42 |
| 51 | 000010000000100000000001010100001000 | MBI PCO SM CMA/52 |
| 52 | 000100000000010000100001010000010000 | MBO PCI LI +1 CMA/50 |
| 53 | 001000000010000100000001011100100000 | EAE-R ARI MQO CONT CMA/56 |
| 54 | 001000010000000000000001000000100000 | EAE-R ACI CONT CMA/40 |
| 55 | 000000010100001000000001010110100000 | ACI ARO EAE-P CONT CMA/53 |
| 56 | 000000100000001010000001011110100000 | ACO EAE-P MQI CONT CMA/57 |
| 57 | 001000010100000000000001000000100000 | EAE-R ACI ARO CONT CMA/40 |
| 60 | 000010000100000000000100010000100000 | MBI ARO DONE CONT CMA/10 |
| 61 | 000010100000000000000100010000100000 | MBI ACO DONE CONT CMA/10 |
| 62 | 000010000100000000000100010000100000 | MBI ARO DONE CONT CMA/10 |
| 63 | 000010000000000000000100010000100000 | MBI DONE CONT CMA/10 |
| 64 | 000100010000000000000100010000100000 | MBO ACI DONE CONT CMA/10 |
| 65 | 100000010100000000000110010000100000 | SUB ACI ARO DONE AXS CONT CMA/10 |
| 66 | 000100010100000000100110010000100000 | MBO ACI ARO LI DONE AXS CONT CMA/10 |
| 67 | 000100010100000000100100010000100000 | MBO ACI ARO LI DONE CONT CMA/10 |
| 70 | 000000000000000000001000110110001000 | TI SM CMA/33 |
| 71 | 000101000010000000000100010000100000 | MBO SKPI ARI DONE CONT CMA/10 |
| 72 | 000100010100000000010100010000100000 | MBO ACI ARO AND DONE CONT CMA/10 |
| 73 | 100001100010000000000110010000100000 | SUB SKPI ACO ARI DONE AXS CONT CMA/10 |
| 74 | 000100000000010000100100010000100000 | MBO PCI LI DONE CONT CMA/10 |
| 75 | 010000100010000000100001000110100000 | EAE ACO ARI LI CONT CMA/43 |
| 76 | 000000000000000000000000100000000000 | CMA/20 |
| 77 | 000001010000000000100100010000100000 | SKPI ACI LI DONE CONT CMA/10 |
