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Game: Dragons Dogma Online; process DDO.exe (WOW64), launched by DDO_Launcher.exe. Thread: 1567764075289640970. Latest report: FEX 2601-217d039-0 repeatedly logs Unknown interrupt: 0x1 immediately before c000001d, with median 0 FPS and a 72% main thread until quick-menu quit. Guest EIP 0x22cd22d is one captured site. The decoder emits SIGSEGV/#GP with an IDT selector for INT imm8, but the Windows frontend falls through to illegal instruction. Match Wine ntdll signal_i386.c/signal_x86_64.c: return access violation, two parameters (read, guest-width all-ones address), with faulting IP unchanged. Keep dedicated interrupt cases and ICEBP/single-step handling unchanged. This is architectural exception translation, not an instruction bypass or a game-file modification. Validation: diff --check passed; reference Wine ntdll invalid-interrupt tests expect these records for both guest widths. CI must compile both Windows frontends; on-device validation remains required. Expected result: replace the interrupt-derived c000001d records with c0000005 and determine whether game exception handling progresses past the black screen.