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== Internal Compatibility Flags ==
==Internal Compatibility Flags==
 
Emulator is not perfect. To fix games that not behave correctly Sony decided to implement compatibility settings. Solution well known from other Sony platforms, yet implemented differently again.  
To fix games that do not behave correctly, Sony decided to implement compatibility settings, a solution well known from other Sony platforms, yet implemented differently again.
===Commands used internally 6.61 POPS===
 
=== Commands used internally in 6.61 POPS ===
 
{| class="wikitable sortable"
{| class="wikitable sortable"
|-
|-
! Disc ID Hash !! Disc ID !! Name [Lang] !! Commands Count !! Data (command + value)
! Hash !! ID !! Name [Lang] !! Commands Count !! Data (command + value)
|-
|-
| 0x4B41C042 || SCPS-18011 || UM JAMMER LAMMY [J] ||0x00000005 ||
| 0x4B41C042 || SCPS-18011 || UM JAMMER LAMMY [J] ||0x00000005 ||
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|}
|}


=== Disc ID Hash generator ===
=== Hash generator ===
 
Simple algorithm used to generate hash from Disc ID. Code expects format SLES12345 to be supplied, no underscore, no dot, etc.
To generate hash from Disc ID, there is a simple algorithm. The code provided here expects format SLES12345 to be supplied, no underscore, no dot, etc.
 
<pre>
  def checksum(string):
  def checksum(string):
  x = string[0:4].encode('ascii').hex()
  x = string[0:4].encode('ascii').hex()
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  checksum("SLPS01986")
  checksum("SLPS01986")
</pre>


==External Compatibility Flags==
==External Compatibility Flags==
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