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boot_regs-dmgABC but with a header checksum of $00 #153

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ISSOtm opened this issue Jul 14, 2021 · 0 comments
Open

boot_regs-dmgABC but with a header checksum of $00 #153

ISSOtm opened this issue Jul 14, 2021 · 0 comments

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@ISSOtm
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ISSOtm commented Jul 14, 2021

According to my analysis of the boot ROM, the flags on dmgABC originate from this add a, [hl], which does not overflow if the header checksum is $00, thus setting F to $80 instead of $B0.

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