Grant posted a hex dump of MBL some time ago in the files section of the Yahoo altaircomputerclub. I recently disassembled that back to source and added some comments. Take a look at:
www.solivant.com/altair_bootloaders/misc/mbl.asm
I use the spasm assembler so you may have to make some minor syntax changes if you use another one. I used it recently to load tapes of different vintages and it works great. You do have to play some games with the sense switches if you're loading something older than Basic 4.0 (see the comments in the file), but it's still much better than toggling in a loader every time.
Geoff.
02-08-2009, 10:59 PM
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