[Dreamcast] Custom BIOS. Only with the 'VGA trick' and has all the normal mods like region free. A newer BIOS is also on the way. BIOS for the SEGA Dreamcast.

So I figured this should be posted as it is an amazing BIOS MOD for an amazing system. Comes with or without devkit intro. It is really useful for Dreamcast ODE users as it allows images to have any LBA of the 1ST_READ.BIN (aka the Dreamcast EXE) to make games much smaller, see README below. Also disabled the VGA check so no more need to force VGA for games that work normally but only with the 'VGA trick' and has all the normal mods like region free. A newer BIOS is also on the way. Till then I hope you enjoy as much as I did flashing ym Dreamcast this evening. Note you will need a BIOS replacement as the stock has read-only access.

____________________________________________________ Dreamcast Custom bootROM v1.030 DevKit by japanese_cake ____________________________________________________ [+] What is that? ~~~~~~~~~~~~~ It is a modified BIOS for the SEGA Dreamcast. It is based on the retail BIOS v1.01d and has the devkit intro. Kudos to Link83 for providing the 1st retail BIOS using the devkit intro (AFAIK). I just reused some parts of his BIOS to inject the devkit intro into mine. Remo file eraser keygen serial. [+] What does it do?

~~~~~~~~~~~~~~~~ This version has the following features: - Region free: boot GD/CD from any regions. Domiki sostav chisla v predelah 10 0. The J/U/E flags as well as the area protection slots that reside in the AIP (A.K.A. IP.BIN) are now simply ignored. - No VGA flag check: no matter if the game supports the VGA output, it boots. There are games that supports the VGA cable but for some reason the VGA flag in the AIP is not set. The use of a boot CD thus was needed.

Now, you will never get the annoying 'This game doesn't support the AV cable that is currently connected to the main console' anymore. - Bootfile LBA check: allow a game to boot even if its bootfile, more commonly called 1ST_READ.BIN, is not located on the outer part of the disc. I don't know whether it can be of any use for people using discs. However, for the lucky owners of ODDE for Dreamcast, you can re-build games' track 3 without any padding. For instance, with 'Dreamkey 3.0 v1.001 (2001)(Sega)(PAL)(M8)[!]', the track03.bin is ~1.10GB. Re-building the track (track03.iso) using the following command: mkisofs -C 0,45000 -V DREAMKEY3 -G IP.BIN -l -o track03.iso data will made the track03.iso way smaller (only ~93MB). Homebrews can also be rebuilt to GDI so that the 0GDTEXT.PVR texture shows up in the audio player - Display bootROM version: the current version of the bootROM appears in the up-right corner of the screen.

[+] Does it work on the real hardware? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Yes, sure, as long as the Dreamcast has a BIOS mod and Dreamshell to flash the alternate BIOS chip. [+] Why using '1.030' as the version number? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The v1.004, v1.01d and v1.022 are the only version numbers known for the official SEGA bootROM (BIOS). Thus I decided that my custom versions will use version numbers starting from v1.30.