I've been trying to explore programming bootloaders a bit. I've got an unorganized collection of resources and a bunch of test bootloader programs that are not

I've been trying to explore programming bootloaders a bit. I've got an unorganized collection of resources and a bunch of test bootloader programs that are not documented. I haven't figured out how to get gdb hooked so I'm just debugging with a print integer routine. That's annoying. And writing to and reading from the bios video service (int 10h) in my text editor bootloader is not the most fun. Randomly characters get overridden and it could be my code or register state I haven't reset but it's pretty hard to get right and understand the bios APIs. I'm getting ready to give up than write anything about my bootloaders since their behavior is not always deterministic in more complex programs (boot4.asm is the complex text editor and sometimes when hitting backspace on the last column in a line the cursor sometimes freaks out trying to find the end of the previous line.) https://github.com/eatonphil/bootloaders https://github.com/eatonphil/bootloaders