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Filename Latest commit message Latest commit date
Jeff Parsons d8f0e64329 Merge the last set of changes from the gh-pages branch
2016-12-04 11:31:03 -08:00
..
basic Numerous changes to make paper tape configurations more consistent with disk configurations. This allows all devices to share the machine-wide "autoMount" configuration object, now that the PC11 has a proper device name ("PTR"), making its properties distinguishable from those for RK11 and RL11 drives (eg, "RK0", "RL0", etc). And all the tape/disk components now use "Load" functions to connect a tape or disk to a device ("Attach" is deprecated). And finally, all tape/disk components now support operations to deposit their media directly into memory -- although in this case, the names of the operations are necessarily different: "Read" for tape images, "Boot" for disk images. The difference is partly historical convention but also reflects the fact that a "Boot" operation is more limited: paper tapes were designed to be completely loaded into memory, whereas bootable disks are designed for only the first sector to be loaded and executed. Also, paper tape images are now flagged as non-auto-starting, because they often require some user action (eg, loading another tape, setting some switches, etc), whereas disk boot sectors are flagged as auto-starting (see the fStart parameter of the loadImage() interface in the RAM component). 2016-12-03 14:49:51 -08:00
bootstrap Merge the last set of changes from the gh-pages branch 2016-12-04 11:31:03 -08:00
monitor Numerous changes to make paper tape configurations more consistent with disk configurations. This allows all devices to share the machine-wide "autoMount" configuration object, now that the PC11 has a proper device name ("PTR"), making its properties distinguishable from those for RK11 and RL11 drives (eg, "RK0", "RL0", etc). And all the tape/disk components now use "Load" functions to connect a tape or disk to a device ("Attach" is deprecated). And finally, all tape/disk components now support operations to deposit their media directly into memory -- although in this case, the names of the operations are necessarily different: "Read" for tape images, "Boot" for disk images. The difference is partly historical convention but also reflects the fact that a "Boot" operation is more limited: paper tapes were designed to be completely loaded into memory, whereas bootable disks are designed for only the first sector to be loaded and executed. Also, paper tape images are now flagged as non-auto-starting, because they often require some user action (eg, loading another tape, setting some switches, etc), whereas disk boot sectors are flagged as auto-starting (see the fStart parameter of the loadImage() interface in the RAM component). 2016-12-03 14:49:51 -08:00
panel Working on v1.30.6 now 2016-12-03 09:04:34 -08:00
README.md Assorted README updates 2016-12-01 22:23:24 -08:00

README.md

layout title permalink
page PDP-11/20 Machine Configurations /devices/pdp11/machine/1120/

PDP-11/20 Machine Configurations

PDPjs supports a variety of PDP-11/20 machine configurations, including:

The "Demo" machines come with 16Kb of RAM and a PC11 Paper Tape Reader. All the other machines are configured with 56Kb of RAM.