feat: add xbox 360 xefu backward compatibility

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Compatibility folder of an Xbox 360 hard drive and the April 2018
backward compatibility title update (FFFE07D2, v2.0.5832.0).

xbox.xex and xefu.xex (v2.0.1884.0) and dash/fonts/xbox.xtf are equal in
archive.org items backwards-compatibility-files and
xbox-360-backwards-compatibility-partition-backup. Xbox Book.xtf is equal
in backwards-compatibility-files and a second upload of the folder.

The xefu1_1 to xefu7b builds and xefutitle5 to xefutitle7b come from the
title update package tu20075c00_00000000 (backwards-compatibility-files).
Every block of the package matches its hash tables up to the header top
hash, and every XEX verifies against the retail PIRS public key. The
package's xbox.xexp and xefu.xexp name the base files above by the SHA-1
of their signatures.

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This commit is contained in:

Abdessamad Derraz committed 2026-10-23 17:55:39 +02:00

1 parent f22ae7de09

commit 2d706cbd5d

16 files changed

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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bios/Microsoft/Xbox 360/Compatibility/dash/fonts/Xbox Book.xtf

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bios/Microsoft/Xbox 360/Compatibility/dash/fonts/xbox.xtf

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bios/Microsoft/Xbox 360/Compatibility/xbox.xex

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bios/Microsoft/Xbox 360/Compatibility/xefu.xex

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bios/Microsoft/Xbox 360/Compatibility/xefu1_1.xex

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bios/Microsoft/Xbox 360/Compatibility/xefu2.xex

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bios/Microsoft/Xbox 360/Compatibility/xefu3.xex

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bios/Microsoft/Xbox 360/Compatibility/xefu5.xex

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bios/Microsoft/Xbox 360/Compatibility/xefu6.xex

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bios/Microsoft/Xbox 360/Compatibility/xefu7.xex

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bios/Microsoft/Xbox 360/Compatibility/xefu7b.xex

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bios/Microsoft/Xbox 360/Compatibility/xefutitle5.xex

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bios/Microsoft/Xbox 360/Compatibility/xefutitle6.xex

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bios/Microsoft/Xbox 360/Compatibility/xefutitle7.xex

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bios/Microsoft/Xbox 360/Compatibility/xefutitle7b.xex

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bios/Microsoft/Xbox 360/Content/0000000000000000/FFFE07D2/000B0000/tu20075c00_00000000

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