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sceRtcTickAddYears(): don't write invalid results.

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Also fix leap day handling, per tests.
This commit is contained in:
Unknown W. Brackets 2013-12-13 15:11:40 -08:00
parent 0e831b0cda
commit d7d03f632e
1 changed files with 20 additions and 20 deletions
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40
Core/HLE/sceRtc.cpp
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@ -860,29 +860,29 @@ int sceRtcTickAddMonths(u32 destTickPtr, u32 srcTickPtr, int numMonths)
int sceRtcTickAddYears(u32 destTickPtr, u32 srcTickPtr, int numYears)
{
if (Memory::IsValidAddress(destTickPtr) && Memory::IsValidAddress(srcTickPtr))
if (!Memory::IsValidAddress(destTickPtr) || !Memory::IsValidAddress(srcTickPtr))
{
u64 srcTick = Memory::Read_U64(srcTickPtr);
ScePspDateTime pt;
memset(&pt, 0, sizeof(pt));
__RtcTicksToPspTime(pt,srcTick);
if(pt.year + numYears <= 0 || pt.year + numYears > 9999)
{
srcTick = 0;
}
else
{
pt.year += numYears;
u64 yearTicks = __RtcPspTimeToTicks(pt);
srcTick =yearTicks;
}
Memory::Write_U64(srcTick, destTickPtr);
WARN_LOG(SCERTC, "sceRtcTickAddYears(%08x, %08x, %d): invalid address", destTickPtr, srcTickPtr, numYears);
return -1;
}
DEBUG_LOG(SCERTC, "sceRtcTickAddYears(%d,%d,%d)", destTickPtr, srcTickPtr, numYears);
u64 srcTick = Memory::Read_U64(srcTickPtr);
ScePspDateTime pt;
memset(&pt, 0, sizeof(pt));
__RtcTicksToPspTime(pt, srcTick);
pt.year += numYears;
if (__RtcValidatePspTime(pt))
{
// Did we land on a year that isn't a leap year?
if (pt.month == 2 && pt.day == 29 && !__RtcIsLeapYear((s16)pt.year))
pt.day = 28;
Memory::Write_U64(__RtcPspTimeToTicks(pt), destTickPtr);
}
DEBUG_LOG(SCERTC, "sceRtcTickAddYears(%08x, %08x = %lld, %d)", destTickPtr, srcTickPtr, srcTick, numYears);
return 0;
}