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Add ConfigMem FIRM stuff and GetSystemInfo modes for DDLC

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wheremyfoodat 2023-08-11 16:37:51 +03:00
parent 2bb751110b
commit e2b82997ba
4 changed files with 45 additions and 0 deletions
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17
src/core/kernel/kernel.cpp
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@ -258,6 +258,7 @@ void Kernel::duplicateHandle() {
namespace SystemInfoType {
enum : u32 {
MemoryInformation = 0,
// Gets information related to Citra (We don't implement this, we just report this emulator is not Citra)
CitraInformation = 0x20000,
// Gets information related to this emulator
@ -294,6 +295,22 @@ void Kernel::getSystemInfo() {
regs[0] = Result::Success;
switch (infoType) {
case SystemInfoType::MemoryInformation: {
switch (subtype) {
// Total used memory size in the APPLICATION memory region
case 1:
regs[1] = mem.getUsedUserMem();
regs[2] = 0;
break;
default:
Helpers::panic("GetSystemInfo: Unknown MemoryInformation subtype %x\n", subtype);
regs[0] = Result::FailurePlaceholder;
break;
}
break;
}
case SystemInfoType::CitraInformation: {
switch (subtype) {
case CitraInfoType::IsCitra:

8
src/core/memory.cpp
View file

@ -91,6 +91,12 @@ u8 Memory::read8(u32 vaddr) {
case ConfigMem::NetworkState: return 2; // Report that we've got an internet connection
case ConfigMem::HeadphonesConnectedMaybe: return 0;
case ConfigMem::Unknown1086: return 1; // It's unknown what this is but some games want it to be 1
case ConfigMem::FirmUnknown: return firm.unk;
case ConfigMem::FirmRevision: return firm.revision;
case ConfigMem::FirmVersionMinor: return firm.minor;
case ConfigMem::FirmVersionMajor: return firm.major;
default: Helpers::panic("Unimplemented 8-bit read, addr: %08X", vaddr);
}
}
@ -138,6 +144,8 @@ u32 Memory::read32(u32 vaddr) {
// 3D slider. Float in range 0.0 = off, 1.0 = max.
case ConfigMem::SliderState3D: return Helpers::bit_cast<u32, float>(0.0f);
case ConfigMem::FirmUnknown:
return u32(read8(vaddr)) | (u32(read8(vaddr + 1)) << 8) | (u32(read8(vaddr + 2)) << 16) | (u32(read8(vaddr + 3)) << 24);
default:
if (vaddr >= VirtualAddrs::VramStart && vaddr < VirtualAddrs::VramStart + VirtualAddrs::VramSize) {