- #SEGA SATURN BIOS PACK YABAUSE MOD#
- #SEGA SATURN BIOS PACK YABAUSE PC#
- #SEGA SATURN BIOS PACK YABAUSE ZIP#
saturn_bios.bin, Hitachi Hi-Saturn BIOS v1.01 (1995)(Hitachi – Sega)(JP)(M6) 440 KB Instead of duplicating it, I combined the region-free and the original JP 1.01 BIOS file (copy /B Sega Saturn BIOS v1.01 (multinorm).bin + sega_101.bin newbios.bin). This topic is explained in the DFO thread in the NFG forums. I also wanted to replace the battery-backed SRAM with an FRAM and simplify the 50/60 Hz switching. I have a couple of earlier PAL Saturns lying around and will attempt this modification again some other time. This time, I carefully removed the old BIOS chip with hot air and plenty of flux and examined the damage. All jumpers and cut traces (yellow circles) were changed back to the factory configuration (except the one next to the reset button). The four other pads weren’t a big problem because the new chip has a larger footprint. Here are some impressions of the VA15 mainboard with the various modifications: (I really like this kind of insulation tape because it sticks where it is supposed to stick. It turned out that frequency switching is only supported by very few Sega Saturn mainboards, and mine is not among them. But first, we’ll need to go back in time a decade or so. To prevent this, I replaced the battery-backed SRAM with non-volatile FRAM. When I re-programmed the PIC16F630 microcontroller, I lost the internal calibration data (OSCCAL).
#SEGA SATURN BIOS PACK YABAUSE ZIP#
Finding the correct BIOS files for this through search engines and forums is a pain in the ass, so I figured I’d post up a zip I’ve compiled of the correct OpenEmu Sega Saturn BIOS files needed for US, EU and JPN region games. This time for Sega’s classic 32-bit console, the Sega Saturn. Of course, this whole operation wasn’t finished on a single day. I was able to successfully extract the content and searched for the copyright string. Of course, it’s probably worth noting that you should own the consoles that correspond with these BIOS files or something like that…. This article is about implementing the following Sega Saturn modifications: Region-free BIOS, FRAM, and switchless 50/60 Hz. When the battery is empty, not only are the date/time and language settings lost, but also all game save files. It’s getting nasty underneath the metal case.
#SEGA SATURN BIOS PACK YABAUSE MOD#
I managed to re-use most components from the previous switchless mod but had to get rid of the stripboard, the socket and the long wires. With the region-free BIOS, most of the functions of Seb’s ultimate switchless mod are obsolete. The now longest and most important wire goes from pin 12 of the PIC to pin 79 of the VDP2 (IC14) it switches between 50 and 60 Hz. Sega Saturn BIOS v1.00a (1995)(Sega)(US)(M6) 446 KB When booting in 60 Hz, everything was fine, but the game crashed as soon as I switched back to 50 Hz. The experiments with this player are not over. There are two articles on RetroRGB that explain in detail how it works and basic instructions on the Wolfsoft blog. Back then, I was modifying my “This is COOL” skeleton SegaSaturn (HST-0021/HST-3220) like crazy, stuffing everything inside that I could find: The region-free BIOS, however, gave me plenty of trouble and I had to put the original BIOS back in. 4 … One last, successful test with an original Japanese game before I started with the new modifications. For some emulators you may also have to rename the bios to something else–check your emulator’s documentation to see if this is necessary. There’s nothing too suspicious under the lid: A Type C EU power supply with the 9 V wire to the A/V port on the left and the modchip with the +5 V wire that goes to some place inside on the right. There was no need to lift pin 79 because I had previously cut the trace above the via hole on the back of the mainboard. This year, I wanted to finally finish what I had started back then. These are all from the game Magical School Lunar, by the way.Īnyway, Merry Christmas, and Happy Holidays.This time for Sega’s classic 32-bit console, the Sega Saturn. Here's some screenshots for those who haven't seen them:
#SEGA SATURN BIOS PACK YABAUSE PC#
Not all games work, and some work in the PC version that will not work on the Dreamcast version. Performance wise, you'll get somewhere between 4 and 8 FPS most places, but only around 2 in movies. After that, just burn it like any other selfbooting emulator, pop it in your DC, and follow the directions on screen. You'll need a Saturn BIOS image to go with it named saturn.bin in the root of the cd. If you pick the Dreamcast version as listed there, you'll get the plain files for the emulator (1ST_READ.BIN). For the first time, I have a Dreamcast release ready at the same time as the other ports of Yabause. Well, its my turn for a Christmas release, and for that I bring you Yabause 0.8.0! For those who don't know, Yabause is a multi-platform Sega Saturn emulator.
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