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pcjs/devices/pdp11/machine/1120/basic/debugger
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Filename Latest commit message Latest commit date
Jeff Parsons 22728fb7e9 v1.37.1: Fixed a CPU bug wherein resetting a running CPU could result in multiple runCPU() timeout handlers being created (there should never be more than one outstanding runCPU() setTimeout request); also modified the Keyboard component to use a CPU-driven timer instead of setTimeout() for keystroke injection, so that stopping/starting the CPU won't interfere with the injection process
2017-09-24 18:11:44 -07:00
..
machine.xml v1.37.1: Fixed a CPU bug wherein resetting a running CPU could result in multiple runCPU() timeout handlers being created (there should never be more than one outstanding runCPU() setTimeout request); also modified the Keyboard component to use a CPU-driven timer instead of setTimeout() for keystroke injection, so that stopping/starting the CPU won't interfere with the injection process 2017-09-24 18:11:44 -07:00
README.md 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

layout title permalink machines
page PDP-11/20 BASIC Demo with Debugger /devices/pdp11/machine/1120/basic/debugger/
id type debugger autoMount
test1120 pdp11 true

PDP-11/20 BASIC Demo (with Debugger)

The machine below pre-loads the DEC PDP-11 BASIC tape image into 16Kb of RAM:

<ram id="ram" addr="0x0000" size="0x4000" file="/apps/pdp11/tapes/basic/DEC-11-AJPB-PB.json"/>

You can also manually load it into memory using the Bootstrap Loader. See the Bootstrap Loader Demo (with Debugger) for details.

There are also some Debugging Notes on the DEC PDP-11 BASIC page, if you're inclined to do some debugging with the built-in PDPjs Debugger.

{% include machine.html id="test1120" %}