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[dynarmic] revert bad changes (#202)

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This reverts commit 56acd4041a.

pr needs rebase and fix, audio broke

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

Reviewed-on: #202
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Signed-off-by: crueter <crueter@eden-emu.dev>
This commit is contained in:
crueter 2025-08-04 19:57:51 +02:00
parent 76d0659ffe
commit 41f0fa97ca
Signed by: crueter
GPG key ID: 425ACD2D4830EBC6
47 changed files with 651 additions and 889 deletions
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18
src/dynarmic/docs/ReturnStackBufferOptimization.md
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@ -79,7 +79,7 @@ contain a prediction with the same `UniqueHash`.
? u64(unique_hash_to_code_ptr[imm64])
: u64(code->GetReturnFromRunCodeAddress());
code->mov(index_reg, dword[code.ABI_JIT_PTR + offsetof(JitState, rsb_ptr)]);
code->mov(index_reg, dword[r15 + offsetof(JitState, rsb_ptr)]);
code->add(index_reg, 1);
code->and_(index_reg, u32(JitState::RSBSize - 1));
@ -91,13 +91,13 @@ contain a prediction with the same `UniqueHash`.
Xbyak::Label label;
for (size_t i = 0; i < JitState::RSBSize; ++i) {
code->cmp(loc_desc_reg, qword[code.ABI_JIT_PTR + offsetof(JitState, rsb_location_descriptors) + i * sizeof(u64)]);
code->cmp(loc_desc_reg, qword[r15 + offsetof(JitState, rsb_location_descriptors) + i * sizeof(u64)]);
code->je(label, code->T_SHORT);
}
code->mov(dword[code.ABI_JIT_PTR + offsetof(JitState, rsb_ptr)], index_reg);
code->mov(qword[code.ABI_JIT_PTR + index_reg.cvt64() * 8 + offsetof(JitState, rsb_location_descriptors)], loc_desc_reg);
code->mov(qword[code.ABI_JIT_PTR + index_reg.cvt64() * 8 + offsetof(JitState, rsb_codeptrs)], code_ptr_reg);
code->mov(dword[r15 + offsetof(JitState, rsb_ptr)], index_reg);
code->mov(qword[r15 + index_reg.cvt64() * 8 + offsetof(JitState, rsb_location_descriptors)], loc_desc_reg);
code->mov(qword[r15 + index_reg.cvt64() * 8 + offsetof(JitState, rsb_codeptrs)], code_ptr_reg);
code->L(label);
}
@ -122,14 +122,14 @@ To check if a predicition is in the RSB, we linearly scan the RSB.
// This calculation has to match up with IREmitter::PushRSB
code->mov(ecx, MJitStateReg(Arm::Reg::PC));
code->shl(rcx, 32);
code->mov(ebx, dword[code.ABI_JIT_PTR + offsetof(JitState, FPSCR_mode)]);
code->or_(ebx, dword[code.ABI_JIT_PTR + offsetof(JitState, CPSR_et)]);
code->mov(ebx, dword[r15 + offsetof(JitState, FPSCR_mode)]);
code->or_(ebx, dword[r15 + offsetof(JitState, CPSR_et)]);
code->or_(rbx, rcx);
code->mov(rax, u64(code->GetReturnFromRunCodeAddress()));
for (size_t i = 0; i < JitState::RSBSize; ++i) {
code->cmp(rbx, qword[code.ABI_JIT_PTR + offsetof(JitState, rsb_location_descriptors) + i * sizeof(u64)]);
code->cmove(rax, qword[code.ABI_JIT_PTR + offsetof(JitState, rsb_codeptrs) + i * sizeof(u64)]);
code->cmp(rbx, qword[r15 + offsetof(JitState, rsb_location_descriptors) + i * sizeof(u64)]);
code->cmove(rax, qword[r15 + offsetof(JitState, rsb_codeptrs) + i * sizeof(u64)]);
}
code->jmp(rax);