boot0: Expand the description of BOOT_BOOT0_ORG.
This really shouldn't even be an option given it is hardcoded as a constant named ORIGIN in the assembly. mbr.S also uses 0x600 and hardcodes it in both the assembly and the Makefile.
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@ -36,8 +36,11 @@ BOOT_BOOT0_FLAGS?= 0x8f
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# 0xb6 (182d) corresponds to 10 seconds.
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BOOT_BOOT0_TICKS?= 0xb6
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# The base address that we the boot0 code to to run it. Don't change this
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# unless you are glutton for punishment.
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# The BIOS loads boot0 to the hardcoded address 0x7c00. boot0 copies
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# itself to this alternate base address before continuing execution so
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# that next level boot blocks can be loaded at the 0x7c00 address they
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# expect. Don't change this unless you are glutton for punishment
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# (and fix ORIGIN in the source to match).
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BOOT_BOOT0_ORG?= 0x600
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ORG=${BOOT_BOOT0_ORG}
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