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Galahad/FLT · 04 November 2023, 16:31

Bootblock is usually in quite low memory, for instance on an A500 with 512k chip and 512k slow, the bootblock can be loaded as low as $1558, on other Amigas between that address and $59e8.

So usually on a clean booted system or just reset system, people have usually loaded code from the bootblock to something like $40000 or higher for safety, you could of course try and allocate that space, but typically, that memory is clean and free.

Then once loaded to that address and jumping to the code at say $40000, I usually then transfer my code back down to low memory and run from there.

04 November 2023, 16:31	#3
Galahad/FLT Going nowhere Join Date: Oct 2001 Location: United Kingdom Age: 50 Posts: 9,014	Bootblock is usually in quite low memory, for instance on an A500 with 512k chip and 512k slow, the bootblock can be loaded as low as $1558, on other Amigas between that address and $59e8. So usually on a clean booted system or just reset system, people have usually loaded code from the bootblock to something like $40000 or higher for safety, you could of course try and allocate that space, but typically, that memory is clean and free. Then once loaded to that address and jumping to the code at say $40000, I usually then transfer my code back down to low memory and run from there.