Displaying 1 result from an estimated 1 matches for "0x7x00".
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0x7c00
2017 Mar 19
1
"isolinux.bin missing or corrupt" when booting USB flash drive in old PC
...is not defined. isohdppx.bin us generated from
isohdppx.S which #defines PARTITION_SUPPORT to 1 and #includes
isohdpfx.S.
> - I am quite clueless what the code between "1:" in line 130 and "next:"
> in line 150 does.
That piece is to move the running code from (0x0000:)0x7x00 to
somewhere else. The comment says 0x600 and "objdump -D -b binary -m
i8086 -M data16,addr16 bios/mbr/isohdpfx.bin" confirms this.
This is done so the next bootloader can be loaded at 0x7x00, which is
a requirement and/or expected by any bootloader.
> - Then it tries whether INT 13...