1 files changed, 122 insertions, 0 deletions
diff --git a/arm9/src/sav_system_info.c b/arm9/src/sav_system_info.c
new file mode 100644
index 00000000..6b532b8d
--- /dev/null
+++ b/arm9/src/sav_system_info.c
@@ -0,0 +1,122 @@
+#include "global.h"
+#include "save_block_2.h"
+#include "MI_memory.h"
+#include "OS_ownerInfo.h"
+#include "RTC_api.h"
+#include "RTC_convert.h"
+#include "sav_system_info.h"
+
+#pragma thumb on
+
+extern void GF_RTC_CopyDateTime(RTCDate *, RTCTime *);
+
+u32 Sav2_SysInfo_sizeof(void)
+{
+    return sizeof(struct SavSysInfo);
+}
+
+void Sav2_SysInfo_init(struct SavSysInfo * unk)
+{
+    MI_CpuClearFast(unk, sizeof(struct SavSysInfo));
+    Sav2_SysInfo_RTC_init(&unk->rtcInfo);
+}
+
+struct SavSysInfo * Sav2_SysInfo_get(struct SaveBlock2 * sav2)
+{
+    return (struct SavSysInfo *)SavArray_get(sav2, 0);
+}
+
+struct UnkSaveStruct_0202376C_sub * Sav2_SysInfo_RTC_get(struct SaveBlock2 * sav2)
+{
+    return &Sav2_SysInfo_get(sav2)->rtcInfo;
+}
+
+void Sav2_SysInfo_InitFromSystem(struct SavSysInfo * unk)
+{
+    OSOwnerInfo info;
+    unk->rtcOffset = OS_GetOwnerRtcOffset();
+    OS_GetMacAddress(unk->macAddr);
+    OS_GetOwnerInfo(&info);
+    unk->birthMonth = info.birthday.month;
+    unk->birthDay = info.birthday.day;
+}
+
+BOOL Sav2_SysInfo_MacAddressIsMine(struct SavSysInfo * unk)
+{
+    u8 macAddr[6];
+    OS_GetMacAddress(macAddr);
+    for (int i = 0; i < 6; i++)
+    {
+        if (macAddr[i] != unk->macAddr[i])
+            return FALSE;
+    }
+    return TRUE;
+}
+
+BOOL Sav2_SysInfo_RTCOffsetIsMine(struct SavSysInfo * unk)
+{
+    return OS_GetOwnerRtcOffset() == unk->rtcOffset;
+}
+
+u8 Sav2_SysInfo_GetBirthMonth(struct SavSysInfo * unk)
+{
+    return unk->birthMonth;
+}
+
+u8 Sav2_SysInfo_GetBirthDay(struct SavSysInfo * unk)
+{
+    return unk->birthDay;
+}
+
+u8 FUN_02023820(struct SavSysInfo * unk)
+{
+    return unk->field_48;
+}
+
+void FUN_02023828(struct SavSysInfo * unk, u8 val)
+{
+    unk->field_48 = val;
+}
+
+u32 FUN_02023830(struct SavSysInfo * unk)
+{
+    return unk->field_4C;
+}
+
+void FUN_02023834(struct SavSysInfo * unk, u32 val)
+{
+    if (unk->field_4C == 0)
+        unk->field_4C = val;
+}
+
+void Sav2_SysInfo_RTC_init(struct UnkSaveStruct_0202376C_sub * sub)
+{
+    sub->field_00 = 1;
+    GF_RTC_CopyDateTime(&sub->date, &sub->time);
+    sub->daysSinceNitroEpoch = RTC_ConvertDateToDay(&sub->date);
+    sub->secondsSinceNitroEpoch = RTC_ConvertDateTimeToSecond(&sub->date, &sub->time);
+    sub->field_2C = 0;
+    sub->field_34 = 0;
+}
+
+BOOL FUN_02023874(struct UnkSaveStruct_0202376C_sub * sub)
+{
+    return sub->field_34 != 0;
+}
+
+void FUN_02023884(struct UnkSaveStruct_0202376C_sub * sub, u32 a1)
+{
+    if (sub->field_34 > 1440)
+        sub->field_34 = 1440;
+    if (sub->field_34 < a1)
+        sub->field_34 = 0;
+    else
+        sub->field_34 -= a1;
+}
+
+void FUN_020238A4(struct UnkSaveStruct_0202376C_sub * sub)
+{
+    sub->field_34 = 1440;
+    GF_RTC_CopyDateTime(&sub->date, &sub->time);
+    sub->daysSinceNitroEpoch = RTC_ConvertDateToDay(&sub->date);
+}