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[Kernel/Memory] Implement datetime a bit more nicely

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wheremyfoodat 2022-09-24 04:40:43 +03:00
parent 4da023c236
commit c4cb20f846
4 changed files with 17 additions and 5 deletions
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10
src/core/memory.cpp
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@ -6,7 +6,7 @@
using namespace KernelMemoryTypes;
Memory::Memory() {
Memory::Memory(u64& cpuTicks) : cpuTicks(cpuTicks) {
fcram = new uint8_t[FCRAM_SIZE]();
readTable.resize(totalPageCount, 0);
writeTable.resize(totalPageCount, 0);
@ -88,6 +88,12 @@ u32 Memory::read32(u32 vaddr) {
switch (vaddr) {
case ConfigMem::Datetime0: return u32(timeSince3DSEpoch()); // ms elapsed since Jan 1 1900, bottom 32 bits
case ConfigMem::Datetime0 + 4: return u32(timeSince3DSEpoch() >> 32); // top 32 bits
// Ticks since time was last updated. For now we return the current tick count
case ConfigMem::Datetime0 + 8: return u32(cpuTicks);
case ConfigMem::Datetime0 + 12: return u32(cpuTicks >> 32);
case ConfigMem::Datetime0 + 16: return 0xFFB0FF0; // Unknown, set by PTM
case ConfigMem::Datetime0 + 20: case ConfigMem::Datetime0 + 24: case ConfigMem::Datetime0 + 28:
return 0; // Set to 0 by PTM
case ConfigMem::AppMemAlloc: return appResourceLimits.maxCommit;
case 0x1FF81000: return 0; // TODO: Figure out what this config mem address does
@ -360,7 +366,7 @@ void Memory::mapGSPSharedMemory(u32 vaddr, u32 myPerms, u32 otherPerms) {
// Get the number of ms since Jan 1 1900
u64 Memory::timeSince3DSEpoch() {
using namespace std::chrono;
// ms since Jan 1 1970
milliseconds ms = duration_cast<milliseconds>(system_clock::now().time_since_epoch());
// ms between Jan 1 1900 and Jan 1 1970 (2208988800 seconds elapsed between the two)