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x86-bare-metal-examples/gdb.gdb

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target remote localhost:1234
set architecture i8086
# These would be possible. But they break the UI too much...
#layout asm
#layout regs
define hook-stop
info registers
printf "\n"
x/16i $pc - 8
printf "\n"
end
break *0x7c00
continue
# 0x1234 is a magic address. Add a:
# mov %ax, 0x1234
# to your program to break there.
awatch *0x9000
commands
silent
printf "0x9000 awatch access debug break\n"
end