Retro/pcjs

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Repository files (latest commit first)
Filename	Latest commit message	Latest commit date
Jeff Parsons b54253acf9 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
..
bin	Re-enabled source maps, at least for the PDP-11 emulators (for now)	2016-10-14 09:30:17 -07:00
lib	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
README.md	First stab at RK11 support	2016-11-21 18:10:20 -08:00

README.md

layout	title	permalink
page	PDP-11 Machine Emulation Module (PDPjs)	/modules/pdp11/

PDP-11 Machine Emulation Module (PDPjs)

Overview

PDPjs, our PDP-11 Machine emulation module, is adapted from the PDP-11/70 Emulator (v1.4) written by Paul Nankervis.

PDPjs is currently comprised of the following non-shared components, as listed in package.json (see the pdp11Files property):