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ppu/arm64: Fix ppu_recompiler_fallback implementation for ARM processors

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kd-11 2025-02-02 20:35:37 +03:00 • committed by kd-11
parent 7ffbada725
commit 6123838a48
1 changed files with 23 additions and 1 deletions
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24
rpcs3/Emu/Cell/PPUThread.cpp
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@ -440,7 +440,29 @@ const auto ppu_recompiler_fallback_ghc = build_function_asm<void(*)(ppu_thread&
c.jmp(ppu_recompiler_fallback);
});
#elif defined(ARCH_ARM64)
const auto ppu_recompiler_fallback_ghc = &ppu_recompiler_fallback;
const auto ppu_recompiler_fallback_ghc = build_function_asm<void(*)(ppu_thread& ppu)>("", [](native_asm& c, auto& args)
{
using namespace asmjit;
Label fallback_fn = c.newLabel();
Label escape_fn = c.newLabel();
// This is called as GHC so the first arg is in x20.
// Fix up the arg registers and call the real function.
c.mov(args[0], a64::x20);
c.ldr(a64::x13, arm::ptr(fallback_fn));
c.blr(a64::x13);
// There is no call-stack to return to in arm64 GHC. Escape to host.
c.mov(a64::x0, a64::x20);
c.ldr(a64::x13, arm::ptr(escape_fn));
c.br(a64::x13);
c.bind(fallback_fn);
c.embedUInt64(reinterpret_cast<u64>(ppu_recompiler_fallback));
c.bind(escape_fn);
c.embedUInt64(reinterpret_cast<u64>(ppu_escape));
});
#endif
// Get pointer to executable cache