BIOS: Difference between revisions

From dreamcast.wiki
Jump to navigation Jump to search
No edit summary
mNo edit summary
 
(3 intermediate revisions by the same user not shown)
Line 1: Line 1:
=Dreamcast=
The Sega Dreamcast BIOS has several known revisions:
The Sega Dreamcast BIOS has several known revisions:
* v1.004 or MPR-21068, found in Japanese consoles only
* v1.01c or MPR-21871, found in PAL consoles
* v1.01d or MPR-21931 or MPR-21933, found in consoles worldwide
** The [[Treamcast]] console uses a hacked version of this firmware with Chinese support.
* v1.022 or MPR-23588, found in U.S. and Japanese consoles
** Consoles with this revision BIOS have [[MIL-CD]] booting disabled.
{{DCWiki:Stub}}


{| class="wikitable"
{| class="wikitable"
Line 54: Line 45:
|Japan
|Japan
|va1
|va1
|Treamcast console BIOS, menu translated to Chinese
|[[Treamcast]] console BIOS, menu translated to Chinese
|cff88d0d
|cff88d0d
|583f96b3e255ed405abc5bdbad8635c0
|583f96b3e255ed405abc5bdbad8635c0
Line 68: Line 59:
|ba8bbb90fdb29525f24f17055dc2c7b2d7674437
|ba8bbb90fdb29525f24f17055dc2c7b2d7674437
|}
|}
=VMU=
The Visual Memory Unit (or Visual Memory System) BIOS has two known revisions:
{| class="wikitable"
|+Known BIOS images
|-
! Version
! Regions
! CRC32
! MD5
! SHA1
|-
|v1.04
|Japanese
|8e0f867a
|352578c7f395235439b78034c0c3f483
|b75f616755899dfc6d99f39f36015b20343f0f9f
|-
|v1.05
|American
|c825003a
|e7386b97c7da04ba9a0febebe0cba88d
|32ba00149d8df942c690fe4913b2f7447b69cf12
|}
{{DCWiki:Stub}}

Latest revision as of 00:54, 28 December 2022

Dreamcast

The Sega Dreamcast BIOS has several known revisions:

Known BIOS images
Version Label Regions HW Revisions Notes CRC32 MD5 SHA1
v1.004 MPR-21068 Japan va0 No support for region flags in flash, hardcoded to Japan 5454841f 37c921eb47532cae8fb70e5d987ce91c 1ea132c0fbbf07ef76789eadc07908045c089bd6
v1.01c MPR-21871 PAL 2f551bc5 6679bc5f3006b5bdb019b2781f537373 1ede8d5be49116a4c6f3fe0961175469537a0434
v1.01d MPR-21931, MPR-21933 Japan, U.S., PAL va1 89f2b1a1 e10c53c2f8b90bab96ead2d368858623 8951d1bb219ab2ff8583033d2119c899cc81f18c
v1.01d (hack) ??? Japan va1 Treamcast console BIOS, menu translated to Chinese cff88d0d 583f96b3e255ed405abc5bdbad8635c0 e3f84705b183ffded0a349ac7f2ab00be2ab74ee
v1.022 MPR-23588 Japan, U.S. va2 MIL-CD loading support removed 786168f9 f2cd29d09f3e29984bcea22ab2e006fe ba8bbb90fdb29525f24f17055dc2c7b2d7674437

VMU

The Visual Memory Unit (or Visual Memory System) BIOS has two known revisions:

Known BIOS images
Version Regions CRC32 MD5 SHA1
v1.04 Japanese 8e0f867a 352578c7f395235439b78034c0c3f483 b75f616755899dfc6d99f39f36015b20343f0f9f
v1.05 American c825003a e7386b97c7da04ba9a0febebe0cba88d 32ba00149d8df942c690fe4913b2f7447b69cf12

This page is a stub page. It needs to be expanded with more detail. If you know more information about this topic, please sign up and contribute to dreamcast.wiki!