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Proper misalignment for AllocatePool, add guest object table

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This commit is contained in:
disjtqz
2023-10-14 09:08:02 -04:00
committed by Radosław Gliński
parent ee424ae14a
commit 6a08208dc8
11 changed files with 513 additions and 45 deletions
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56
src/xenia/cpu/processor.cc
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@@ -1291,6 +1291,62 @@ uint32_t Processor::CalculateNextGuestInstruction(ThreadDebugInfo* thread_info,
return current_pc + 4;
}
}
uint32_t Processor::GuestAtomicIncrement32(ppc::PPCContext* context,
uint32_t guest_address) {
uint32_t* host_address = context->TranslateVirtual<uint32_t*>(guest_address);
uint32_t result;
while (true) {
result = *host_address;
// todo: should call a processor->backend function that acquires a
// reservation instead of using host atomics
if (xe::atomic_cas(xe::byte_swap(result), xe::byte_swap(result + 1),
host_address)) {
break;
}
}
return result;
}
uint32_t Processor::GuestAtomicDecrement32(ppc::PPCContext* context,
uint32_t guest_address) {
uint32_t* host_address = context->TranslateVirtual<uint32_t*>(guest_address);
uint32_t result;
while (true) {
result = *host_address;
// todo: should call a processor->backend function that acquires a
// reservation instead of using host atomics
if (xe::atomic_cas(xe::byte_swap(result), xe::byte_swap(result - 1),
host_address)) {
break;
}
}
return result;
}
uint32_t Processor::GuestAtomicOr32(ppc::PPCContext* context,
uint32_t guest_address, uint32_t mask) {
return xe::atomic_or(
context->TranslateVirtual<volatile int32_t*>(guest_address),
xe::byte_swap(mask));
}
uint32_t Processor::GuestAtomicXor32(ppc::PPCContext* context,
uint32_t guest_address, uint32_t mask) {
return xe::atomic_xor(
context->TranslateVirtual<volatile int32_t*>(guest_address),
xe::byte_swap(mask));
}
uint32_t Processor::GuestAtomicAnd32(ppc::PPCContext* context,
uint32_t guest_address, uint32_t mask) {
return xe::atomic_and(
context->TranslateVirtual<volatile int32_t*>(guest_address),
xe::byte_swap(mask));
}
bool Processor::GuestAtomicCAS32(ppc::PPCContext* context, uint32_t old_value,
uint32_t new_value, uint32_t guest_address) {
return xe::atomic_cas(xe::byte_swap(old_value), xe::byte_swap(new_value),
context->TranslateVirtual<uint32_t*>(guest_address));
}
} // namespace cpu
} // namespace xe