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Changing calls/jmps to use the indirection table. Most games seem faster.

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This commit is contained in:
Ben Vanik
2015-05-21 00:12:28 -07:00
parent ad72c193a6
commit fc4727c339
7 changed files with 144 additions and 178 deletions
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46
src/xenia/cpu/backend/x64/x64_thunk_emitter.cc
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@@ -141,6 +141,52 @@ GuestToHostThunk X64ThunkEmitter::EmitGuestToHostThunk() {
return (HostToGuestThunk)fn;
}
// X64Emitter handles actually resolving functions.
extern "C" uint64_t ResolveFunction(void* raw_context, uint32_t target_address);
ResolveFunctionThunk X64ThunkEmitter::EmitResolveFunctionThunk() {
// ebx = target PPC address
// rcx = context
const size_t stack_size = StackLayout::THUNK_STACK_SIZE;
// rsp + 0 = return address
mov(qword[rsp + 8 * 2], rdx);
mov(qword[rsp + 8 * 1], rcx);
sub(rsp, stack_size);
mov(qword[rsp + 48], rbx);
mov(qword[rsp + 56], rcx);
mov(qword[rsp + 64], rbp);
mov(qword[rsp + 72], rsi);
mov(qword[rsp + 80], rdi);
mov(qword[rsp + 88], r12);
mov(qword[rsp + 96], r13);
mov(qword[rsp + 104], r14);
mov(qword[rsp + 112], r15);
mov(rdx, rbx);
mov(rax, uint64_t(&ResolveFunction));
call(rax);
mov(rbx, qword[rsp + 48]);
mov(rcx, qword[rsp + 56]);
mov(rbp, qword[rsp + 64]);
mov(rsi, qword[rsp + 72]);
mov(rdi, qword[rsp + 80]);
mov(r12, qword[rsp + 88]);
mov(r13, qword[rsp + 96]);
mov(r14, qword[rsp + 104]);
mov(r15, qword[rsp + 112]);
add(rsp, stack_size);
mov(rcx, qword[rsp + 8 * 1]);
mov(rdx, qword[rsp + 8 * 2]);
jmp(rax);
void* fn = Emplace(0, stack_size);
return (ResolveFunctionThunk)fn;
}
} // namespace x64
} // namespace backend
} // namespace cpu