Difference between revisions of "System Menu/BS2"

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(Types)
(Types)
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| read 0x20 bytes from disk (game toc?)
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| unknown check can switch to state 70
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read 0x20 bytes from disk (game toc?)
 
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Revision as of 21:26, 18 May 2010

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 wait for dvd command to finish, 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 wait for dvd command to finish, 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

go to state 12

12, 50
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 unknown check can switch to state 70

read 0x20 bytes from disk (game toc?)

16
16 wait for dvd command to finish, update cache.dat if necessary 17
17 read partition info from disk 18
18 wait for dvd command to finish, update cache.dat if necessary

go through the game partition, making note of those of type 0 and 1

19
19 read 0x2000 bytes from disk 20
20 wait for dvd command to finish, update cache.dat if necessary

if 0xc3f81a8e not found at the end of read block, go to state 54

if region check fails, go to state 54

if BS2IsValidDisc check fails, go to state 54

if booting from cache, go to state 37

if there's a partition of type 1, go to state 21

if there's a partition of type 0, go to state 37

otherwise, go to state 54

21,37,54
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