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== PSP Emulator Types and Revisions ==
<div>
<div style="float:top; text-align:center;">'''PSP Emulators Types and Revisions'''</div>
<div style="float:left; width:33%;">
{| class="wikitable" style="font-size:xx-small;"
|+ psp_emulator.elf (decrypted)
! Firmware !! Bytes !! MD5 !! <abbr title="Revision">Rev</abbr>
|-
! [[1.00_CEX|1.00]] ~ [[3.10_CEX|3.10]]
| colspan="3" {{no}}
|-
! [[3.15_CEX|3.15]]
| ? || ? || ?
|-
! ?
| ? || ? || ?
|-
! ?
| ? || ? || ?
|-
! [[3.66_CEX|3.66]]
| 419.120 || DFED8FCDB36A4284A27369304D47674F || ?
|-{{cellcolors|#ddddff}}
! [[3.70_CEX|3.70]]
| rowspan="3" | 419.176 || 0F6F1D92D045A86565DF705276776A41 || rowspan="3" | same
|-{{cellcolors|#ddddff}}
! ~
| style="text-align:center; background-color:#ddddff;" | ''Any''
|-{{cellcolors|#ddddff}}
! [[3.74_CEX|3.74]]
| DC8C67FEEB605D73D073BBCAD8F17E6A
|-{{cellcolors|#bbbbff}}
! [[4.00_CEX|4.00]]
| rowspan="2" | 419.416 || 7371A95BB0ACB1152EB13EA11C866F87 || rowspan="2" | same
|-{{cellcolors|#bbbbff}}
! [[4.01_CEX|4.01]]
| C17EE35A278E64227558FA9C39E805B5
|-{{cellcolors|#ddddff}}
! [[4.10_CEX|4.10]]
| rowspan="2" | 419.472 || DAA4E9816037E1EFFFF15B344B61BD1D || rowspan="2" | same
|-{{cellcolors|#ddddff}}
! [[4.11_CEX|4.11]]
| 2DF5AFE349E082A79AF4E50B8100F80A
|-
! [[4.15_CEX|4.15]]
| ? || ? || ?
|-{{cellcolors|#bbbbff}}
! [[4.20_CEX|4.20]]
| rowspan="3" | 419.480 || 540422B0759D20738BF498337E33B7E2 || rowspan="3" | same
|-{{cellcolors|#bbbbff}}
! ~
| style="text-align:center; background-color:#bbbbff;" | ''Any''
|-{{cellcolors|#bbbbff}}
! [[4.25_CEX|4.25]]
| 5D20DFAE9E0D704F6DD17D2A807A1D2C
|-
! ?
| ? || ? || ?
|-
! ?
| ? || ? || ?
|-
! ?
| ? || ? || ?
|-{{cellcolors|#ddddff}}
! [[4.78_CEX|4.78]]
| rowspan="3" | 419.520 || EFEA0DFDDD6E7C479983B5E4E8B95295 || rowspan="3" | same
|-{{cellcolors|#ddddff}}
! ~
| style="text-align:center; background-color:#ddddff;" | ''Any''
|-{{cellcolors|#ddddff}}
! [[4.82_CEX|4.82]]
| 5CAC36C3F940749B4DD5E03DB02C732A
|}
<span style="font-size:small">
{{widedot}}'''Decrypted (elf)''': changes <abbr title="when comparing two decrypted files of the same revision from different firmwares the only difference is the target firmware">every firmware version</abbr><br>
{{widedot}}'''<abbr title="0x20 bytes">Build label</abbr>''': no/unknown<br>
{{widedot}}'''<abbr title="2 bytes">Target Firmware</abbr>''': yes, repeated '''two''' times<br>
{{widedot}}'''Revision''': unknown
</span>
</div>
<div style="float:left; width:33%;">
{| class="wikitable" style="font-size:xx-small;"
|+ psp_translator.elf (decrypted)
! Firmware !! Bytes !! MD5 !! <abbr title="Revision">Rev</abbr>
|-
! [[1.00_CEX|1.00]] ~ [[3.10_CEX|3.10]]
| colspan="3" {{no}}
|-
! [[3.15_CEX|3.15]]
| ? || ? || ?
|-
! ?
| ? || ? || ?
|-
! ?
| ? || ? || ?
|-
! [[3.66_CEX|3.66]]
| 283.128 || 0F52CE7666276B71FF5C560D7BD28014 || ?
|-{{cellcolors|#ddddff}}
! [[3.70_CEX|3.70]]
| rowspan="3" | 283.128 || C35D80E8B1A4A61212EA773C061BF1DC || rowspan="3" | same
|-{{cellcolors|#ddddff}}
! ~
| style="text-align:center; background-color:#ddddff;" | ''Any''
|-{{cellcolors|#ddddff}}
! [[3.74_CEX|3.74]]
| A42CD1453C52149297A975F2BA5B2D38
|-{{cellcolors|#bbbbff}}
! [[4.00_CEX|4.00]]
| rowspan="2" | 283.128 || DF07955312D1C09DC2DC355EBA47F8AA || rowspan="2" | same
|-{{cellcolors|#bbbbff}}
! [[4.01_CEX|4.01]]
| A06E7BF7C1D062878593E1D4EA85B4C9
|-{{cellcolors|#ddddff}}
! [[4.10_CEX|4.10]]
| rowspan="2" | 283.128 || FB4801625CA15AC58DB28A4223EFD4A2 || rowspan="2" | same
|-{{cellcolors|#ddddff}}
! [[4.11_CEX|4.11]]
| 3154FF57D36E3D7C4F2C061393816482
|-
! [[4.15_CEX|4.15]]
| ? || ? || ?
|-{{cellcolors|#bbbbff}}
! [[4.20_CEX|4.20]]
| rowspan="3" | 283.120 || C125A486D3C48EA2C957EAFC0AB69B39 || rowspan="3" | same
|-{{cellcolors|#bbbbff}}
! ~
| style="text-align:center; background-color:#bbbbff;" | ''Any''
|-{{cellcolors|#bbbbff}}
! [[4.23_SEX|4.23 S]]
| C469B41798157C53C3E7794E9BDF9D36
|-
! [[4.25_CEX|4.25]]
| 283.120 || A675423F5C8B9FD02AA2150D46B953AE || ?
|-
! ?
| ? || ? || ?
|-
! ?
| ? || ? || ?
|-
! ?
| ? || ? || ?
|-{{cellcolors|#ddddff}}
! [[4.78_CEX|4.78]]
| rowspan="3" | 283.120 || A35809CE6C184F3E3B52C18E0AE19217 || rowspan="3" | same
|-{{cellcolors|#ddddff}}
! ~
| style="text-align:center; background-color:#ddddff;" | ''Any''
|-{{cellcolors|#ddddff}}
! [[4.82_CEX|4.82]]
| 58E104453AC60DE2B671E43F09D96E80
|}
<span style="font-size:small">
{{widedot}}'''Decrypted (elf)''': changes <abbr title="when comparing two decrypted files of the same revision from different firmwares the only difference is the target firmware">every firmware version</abbr><br>
{{widedot}}'''<abbr title="0x20 bytes">Build label</abbr>''': no/unknown<br>
{{widedot}}'''<abbr title="2 bytes">Target Firmware</abbr>''': yes, repeated '''one''' time<br>
{{widedot}}'''Revision''': unknown
</span>
</div>
</div>
<br style="clear: both;" />
== Playstation Portable memory regions ? ==
== Playstation Portable memory regions ? ==
  PPSSPP
  PPSSPP
Line 78: Line 243:
  S7004 We were leaving from the room.
  S7004 We were leaving from the room.


== Emulator patches ==
== Emulator patches (experimental) ==
This patches are intended to be applyed to the PSP emulator
This patches are intended to be applyed to the PSP emulator


=== Patch to redirect unsupported commands (experimental) ===
=== Patch to redirect unsupported commands ===
This ugly and highly experimental poc code simply redirects unsupported cmd's to 0x01010005 (Seek Begin), prolly breaks other cmd's
This ugly and highly experimental poc code simply redirects unsupported cmd's to 0x01010005 (Seek Begin), prolly breaks other cmd's


{{boxcode|float=left|width=50%|title=Original|code=<syntaxhighlight lang="asm">
{{boxcode|float=left|width=auto|title=Original|code=<syntaxhighlight lang="asm">
00000000000285B0
00000000000285B0
00000000000285B0 empty_buffer:                          # CODE XREF: sceIoIoctlAsync+74�j
00000000000285B0 empty_buffer:                          # CODE XREF: sceIoIoctlAsync+74�j
Line 111: Line 276:
00000000000285F4 loc_285F4:                              # CODE XREF: sceIoIoctlAsync+B4�j
00000000000285F4 loc_285F4:                              # CODE XREF: sceIoIoctlAsync+B4�j
00000000000285F4                stw      r31, 8(r30)  # return value
00000000000285F4                stw      r31, 8(r30)  # return value
</syntaxhighlight>}}
</syntaxhighlight>}}{{clear}}


{{boxcode|float=right|width=50%|title=Patched|code=<syntaxhighlight lang="asm">
{{boxcode|float=left|width=auto|title=Patched|code=<syntaxhighlight lang="asm">
00000000000285B0
LOAD:00000000000285B0
00000000000285B0 loc_285B0:                              # CODE XREF: sceIoIoctlAsync+74�j
LOAD:00000000000285B0 loc_285B0:                              # CODE XREF: sceIoIoctlAsync+74�j
00000000000285B0                                        # sceIoIoctlAsync+140�j ...
LOAD:00000000000285B0                                        # sceIoIoctlAsync+140�j ...
00000000000285B0                bl        _sys_libc_malloc
LOAD:00000000000285B0                bl        _sys_libc_malloc
00000000000285B4                clrldi    r26, r3, 32
LOAD:00000000000285B4                clrldi    r26, r3, 32
00000000000285B8                lis      r28, 0x101 # 0x1010005                          # Seek cmd id
LOAD:00000000000285B8                lis      r28, 0x101 # 0x1010005                          # Seek cmd id
00000000000285BC                ori      r28, r28, 5 # 0x1010005
LOAD:00000000000285BC                ori      r28, r28, 5 # 0x1010005
00000000000285C0                b        loc_28724
LOAD:00000000000285C0                b        loc_28724
00000000000285C4 # ---------------------------------------------------------------------------
LOAD:00000000000285C4 # ---------------------------------------------------------------------------
00000000000285C4
LOAD:00000000000285C4
00000000000285C4 loc_285C4:                              # CODE XREF: sceIoIoctlAsync+184�j  #
LOAD:00000000000285C4 loc_285C4:                              # CODE XREF: sceIoIoctlAsync+184�j  #
00000000000285C4                                        # sceIoIoctlAsync+2D0�j              # Both branches also modified, so we can use 5x4 bytes
LOAD:00000000000285C4                                        # sceIoIoctlAsync+2D0�j              # Both branches also modified, so we can use 5x4 bytes
00000000000285C4                clrldi    r7, r23, 32
LOAD:00000000000285C4                clrldi    r7, r23, 32
00000000000285C8                extsw    r3, r24
LOAD:00000000000285C8                extsw    r3, r24
00000000000285CC                extsw    r4, r28
LOAD:00000000000285CC                extsw    r4, r28
00000000000285D0                mr        r6, r27
LOAD:00000000000285D0                mr        r6, r27
00000000000285D4                clrldi    r8, r25, 32
LOAD:00000000000285D4                clrldi    r8, r25, 32
00000000000285D8                mr        r5, r29
LOAD:00000000000285D8                mr        r5, r29
00000000000285DC                bl        _IoFileMgrForUser_822ADD32
LOAD:00000000000285DC                bl        _IoFileMgrForUser_822ADD32
00000000000285E0                ld        r2, 0xC0+var_98(r1)
LOAD:00000000000285E0                ld        r2, 0xC0+var_98(r1)
00000000000285E4                mr        r31, r3
LOAD:00000000000285E4                mr        r31, r3
00000000000285E8                mr        r3, r29
LOAD:00000000000285E8                mr        r3, r29
00000000000285EC                bl        _sys_libc_free
LOAD:00000000000285EC                bl        _sys_libc_free
00000000000285F0                ld        r2, 0xC0+var_98(r1)
LOAD:00000000000285F0                ld        r2, 0xC0+var_98(r1)
00000000000285F4                stw      r31, 8(r30)
LOAD:00000000000285F4                stw      r31, 8(r30)
</syntaxhighlight>}}{{clear}}
</syntaxhighlight>}}{{clear}}


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