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Partial revert: [dynarmic] fix sign extension and optimize vaddr lookups for 64bit on x64 systems (#4446) (#4448)

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Breaks Mario Kart 8 Deluxe.

#4446

Signed-off-by: lizzie <lizzie@eden-emu.dev>

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4448
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
This commit is contained in:
lizzie
2026-09-17 05:52:36 +02:00
committed by crueter
parent 73e004de6e
commit 6374f7f51f
1 changed files with 2 additions and 2 deletions
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src/dynarmic/src/dynarmic/backend/x64/emit_x64_memory.h
+2 -2
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@@ -184,8 +184,8 @@ template<>
}
// check for sign bit, apply sign extension as needed
if (ctx.conf.page_table_sign_extension) {
code.shl(page, 63 - int(*ctx.conf.page_table_sign_extension));
code.sar(page, 63 - int(*ctx.conf.page_table_sign_extension));
code.shl(page, *ctx.conf.page_table_sign_extension);
code.sar(page, *ctx.conf.page_table_sign_extension);
}
code.jz(abort, code.T_NEAR);