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  • what kind of "VGA box" was used ? it is known when simplified cheaper adapters may not work with some display models. cause: sync lines voltage level.

  • might be interesting - this game's source code / disassembly github.com/g0me3/bfs_nes_sims also have number of original bugs fixed

  • Quote from collabvm: “All of the .glo files that are referenced throughout the source are missing for some reason ” there is 2 missing in total I think ? imgtbl.glo and bgndtbl.glo, expected to be .H-like files consists of .set or .equ or .global directives. in theory they might be recreated after MK3 rev2.1 game code disassembly and analysis. I think bigger problem is missing project or makefile, so its not clear how to compile and link all these .ASM source files.

  • @Darksoft several month ago you dumped similar/same looking board's FPR-24352A flash ROM, but I can't find there JVS-related texts shown on the photo above (SEGA I/O BD JVS 837-14562 etc). so, I'm not sure, its possible this one have different firmware in the flash ROM, or JVS IO part maybe handled not by SH CPU but other MCU on this board ? add: as I see in my notes - suspected JVS IO MCU is Sega 315-6414 (also used in Type-3 JVS I/Os). so - is it dumped ? - yes and no, you have dumped SH CPU p…

  • Decathlete decrypted

    MetalliC - - ST-V Multicart

    Post

    Quote from stickcross: “that decathlete is now decrypted. ” it is not, but at least compression/encryption algorithm is known now. as was said above - this game have most of graphics/textures compressed, also they are stored as separate "files" (not grouped into bigger data chunks). so, there needed to extract/decompress hundred(s) of files and then rebuild game data, or implement in SH-2 code on-the-fly decompressor. any of approaches is not easy and will require fair amount of work...

  • have you seen RAM TEST screen photo ? there is no per-chip test, but single good/bad test result for group of ICs. its possible there is bad only one RAM IC, or few, or buffer IC, or GPU chip.

  • perhaps RAM TEST will show something useful ?

  • sh*t happen - there was no single black cat in this dark room. VS2 '99 Step 2 Rev.B (vs299b) is Japan only, no codes to change country. this set have left over routines to check key sequence and change region, but they are not used/disabled. so, no M3 country codes is missing

  • Quote from twistedsymphony: “And we don't have a code listed for "Virtua Stirker 2"; the one before Virtua Striker 98. This has both Step 2.0 and Step 1.5 releases (though I would assume the code is the same as it is with other VS releases across Steps). ” in short - Virtua Striker 2 and all it's versions is a total mess. they may have code to change region, or hard coded to specific region(s) - Japan only or switchable Export/USA: VS2 - MAME's "vs215o" (Step 1.5, older) is Japan, the rest 2 dum…

  • ROM Acronyms

    MetalliC - - CPS2 Multigame

    Post

    Quote from Apocalypse: “I've always wondered how parent romsets are determined in MAME. ” newest version/revision for World or Europe will parent set. no matter if it considered "common" or not.

  • Quote from alberto1225: “Thanks for the information. I have 4 set of spikeout but 2 are US (?) and 2 are JAP version. It's time for 4 players link battle. ” welcome. nice set, have you checked revisions of these PCBs ? perhaps there is something we missing (we have dumped Spike Out revision C, older is missing). @twistedsymphony Boat Race GP ? I doubt this game was released, more likely there was made only location test cabs, so there bare chances to spot any of these.

  • SPIKE OUT set cursor at GAME ASSIGNMENTS line then press: Button3(Charge), Start, Button4(Jump), Start, Start, Start, Button1(Shift), Start, Start, then change country in appeared menu. SPIKE OUT FE set cursor at GAME ASSIGNMENTS line holding Service button press: Button4(Jump), Start, Button4(Jump), Start, release Service button, Button1(Shift), Start, Start, Start, Button3(Charge), Start, Start, Button1(Shift), Start, Test, then change country in appeared menu.

  • FIGHTING VIPERS 2 in Game Assignments screen set cursor at Country line then press: Left Left Left Right Right Left, then change country using Test switch so, only SpikeOut code missing, right ?

  • Sega Flash Beats Restoration

    MetalliC - - Project Showcase

    Post

    Quote from twistedsymphony: “I did look for one but couldn't see one from the angles I had to work with. The pictures I did get were just me sticking my phone in the machine and snapping them blind. After taking the photos I noticed that there is a sticker with a PCB number behind the heat sync on the lower PCB, it might be covering up the silk-screened PCB number. you can see "834-13..." I'll have to look through my other photos to see if any of them caught the last few digits. ” thanks, but 83…

  • Sega Flash Beats Restoration

    MetalliC - - Project Showcase

    Post

    Quote from twistedsymphony: “Interestingly searching the EPR numbers on the ROMs: EPR-21609 EPR-21610 EPR-21611 The first two come up here as NAOMI BIOS ROMs: git.redump.net/mame/commit/?id…f54ce752f817b87260e0fd4ca I'm thinking that's incorrect. I'll dump these once I have time to more thoroughly through the electronics. @MetalliC @rtw Is this hardware documented? I can't find any reference to this in MAME or elsewhere. ” well, then we have wrong supposed EPR ROM numbers for Korean or Australia…

  • @invzim in MK3_source_windows_RC2.tar.gz

  • Connect a trackball to ST-V?

    MetalliC - - ST-V Multicart

    Post

    I cant remember, it was a while ago when I did that hopper stuff for ST-V, but MCFG_HOPPER_ADD("hopper", attotime::from_msec(100), TICKET_MOTOR_ACTIVE_HIGH, TICKET_STATUS_ACTIVE_HIGH) and PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_DEVICE_MEMBER("hopper", ticket_dispenser_device, line_r) makes me think it is active high. so when motor on - status is low, then some coin falling down and activate sensor so it becomes high, then coin fall down and status becomes low again. this repe…

  • Connect a trackball to ST-V?

    MetalliC - - ST-V Multicart

    Post

    to boot this game is enough cab door sensor to be ON, I think it is Player2 button2 line. but if you'll play the game and win some cash - game will try to payout them, and will expect Player1 button2 line to be triggered while hopper motor ON, and will show error message if its not. add: if you do not want play it a lot, I think it will be enough to manually press and release P1 b2 button several times after game over, to make game think payout went fine

  • Connect a trackball to ST-V?

    MetalliC - - ST-V Multicart

    Post

    a bit of screenshots from MAME, looks like a funny mini-game besides trackball this game require hopper (simulation) - when motor line active game expects sensor line will toggle. arcade-projects.com/forums/ind…fb2e6ec13d03c7b9e7850547earcade-projects.com/forums/ind…fb2e6ec13d03c7b9e7850547earcade-projects.com/forums/ind…fb2e6ec13d03c7b9e7850547earcade-projects.com/forums/ind…fb2e6ec13d03c7b9e7850547earcade-projects.com/forums/ind…fb2e6ec13d03c7b9e7850547earcade-projects.com/forums/ind…fb2e6ec13…

  • I'd imagine not good enough JVS power may cause transmission errors or timeouts, but in AW->N conversions, the code which talks with JVS host MCU is not robust, not handle error reply cases, and goes crazy.