Timeline for Why did the PDP-11 include a JMP instruction?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Jan 6, 2022 at 19:49 | answer | added | Anixx | timeline score: 5 | |
| Jul 6, 2018 at 9:46 | comment | added | Omar and Lorraine |
I have made the discovery, that the CP1600, which was modelled on the PDP-11, does exactly as @RussellBorogove says: the same bit-pattern in the opcode for MOVR also was used for JMPR and some others depending on what the source/destination registers are.
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| Apr 13, 2017 at 19:39 | comment | added | Russell Borogove | Probably not applicable in this case, but in some assembly languages you'll see different mnemonics being encoded to the same basic opcode, so it would be possible for JMP to be implemented as a MOV. | |
| Apr 12, 2017 at 20:07 | vote | accept | Omar and Lorraine | ||
| Apr 12, 2017 at 16:56 | answer | added | dirkt | timeline score: 50 | |
| Apr 12, 2017 at 12:51 | answer | added | wizofwor | timeline score: 53 | |
| Apr 12, 2017 at 10:55 | history | asked | Omar and Lorraine | CC BY-SA 3.0 |