Reply to post: Re: @Steven Raith

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Andrew Richards

Re: @Steven Raith

... and don't forget ! to poke a 32 bit word.

There was some basic protection on tape games. It was possible to set a byte so code could only be executed and not just loaded.

However, it was also fairly simple to hook a few bytes of code into the screen refresh event to reset the byte in question 25(?) times a second to circumvent this. All to allow tape games to be moved to disks, which often involved another step to work-around the loss of a couple of k to the disc driver code. Load at &1900 (or &1100), copy down to &E00 and then run. Those were the days. Will stop now as I've an onion to tie to my belt.

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