Norm, The commands
sim> set ptr ena sim> att ptr ka655x.bin sim> ie ptr 4 4: 2 1 sim> det ptr do work, but not using the emulated microVAX. This is because ptr refers to a paper tapre reader device that is no longer available. If you build the pdp11 emulator and use that insead of the emulated microVAX, just for changing the byte in ka655x.bin, then it will work. At least that is what I do. Peter Allan
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