System Menu/BS2

States taken from System Menu 257 (3.1U)

Types

State number	action	next states
0	prints out status flags ("No Disk", "Drive Reset", "Wait Spinup", "Boot from Cache"), delay?, enable waiting-for-disk?	2, 52
1	delay	2
2	delay, check for update, enable waiting-for-disk?, DVDResetAsync	3
3	bs2_issue_dvd_command, delay, __DVDGetCoverStatusAsync, create cache.dat?	4
4	ReadDriveInfo via cache.dat or DVDInquiryAsync	5
5	Update cache.dat if necessary, setup 800030E6 [16bit] based on drive info	8
6
7
8	Read 0x20 bytes of disk id [from cache.dat or disk via DVDReadDiskID]	9
9	Update cache.dat if necessary, copy the 0x20 byte long disk id to 0x80000000. if [disk_id + 0x18] is 0x5d1c9ea3, and the [disk_id + 0] is not 'RAAE', treat as a wii disc. otherwise, if [disk_id + 0x1c] is 0xc2339f3d, treat as gamecube disk otherwise, the disk type is unknown	gamecube disk = 11, wii disk = 15, unknown = 54
10
11	if not waiting for a disk, exit to state 50 if waiting, disable the waiting-for-disk and check streaming [0x80000008] if streaming and no streaming buffer size defined [0x80000009], set to size 10 if streaming, setup via __DVDAudioBufferConfig	12
12	wait for DVD command to finish	13
13	async unencrypted 0x2000 byte dvd read	14
14	wait for DVD command to finish once finished, check game region	region ok = 50 region not match = 54
15
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