Re: What is your new years wish for MAME in 2023?
What about making "unmap_high" the default, as it matches most real hardware circuits, and this way should be more friendly to new driver de ...
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EmuChat
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Naibo
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02/01/23 05:11 AM
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Re: What is your new years wish for MAME in 2023?
I see. Thank you Vas for explaining.
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EmuChat
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Naibo
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01/30/23 02:18 AM
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Re: What is your new years wish for MAME in 2023?
> What is your new years wish for MAME in 2023?
-The return value read from un-mapped space: change from current "0" to "1", ...
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EmuChat
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Naibo
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01/29/23 03:07 AM
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Return value from un-mapped spaces in a real hardware circuit
Currently, MAME seems to return "0" when accessing un-mapped spaces. However, in a real electronic circuit, the result is usually the opposi ...
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Programming
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Naibo
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01/28/23 09:08 AM
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Help about github submission
A few weeks ago I submitted my recent studies on Taito JC and Jaleco VJ/Stepstag:
https://www.mameworld.info/ubbthreads/sh...new=#Post391406
The ja ...
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Programming
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Naibo
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08/17/21 09:43 AM
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Re: Taito JC Densha(Train) and Jaleco VJ
Also improved some graphics in Taito JC:
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EmuChat
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Naibo
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07/26/21 08:28 AM
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Taito JC Densha(Train) and Jaleco VJ
With some patch, Jaleco VJ Dash works w/o its sub-spu-board ROMs dumped:
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EmuChat
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Naibo
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07/26/21 08:26 AM
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Re: About two devices sharing the same memory mapped space, in an interleaved manner
Thanks Vas. Just added it.
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Programming
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Naibo
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06/12/20 05:46 AM
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Re: About two devices sharing the same memory mapped space, in an interleaved manner
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Programming
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Naibo
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06/09/20 02:31 AM
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About two devices sharing the same memory mapped space, in an interleaved manner
Recently during the stay-home days, I did some study on Jaleco's music & rhythm game "VJ" series. It shares the basic hardware with Jale ...
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Programming
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Naibo
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06/09/20 02:24 AM
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What changes happened to the Model-1 tgp bios dumps?
In recent git code, the crc/sha1 of two model1 tgp rom files(315-5572 and 315-5573) has been changed.
I think it's just some particular bits correcti ...
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EmuChat
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Naibo
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04/09/18 02:50 AM
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Re: Where to download older versions of MAME for Linux? [SOLVED]
MAME Source code since year 2011(at least) has been able to be compiled in Linux/gcc without any modification.
Just simply type "make".
Yo ...
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EmuChat
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Naibo
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04/09/18 02:41 AM
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Re: Added Jaleco VJ, and workable Stepstag driver
Hi, Roberto,
Thanks for your information. This seems to be an automatic merge issue, as my work was based on mame0193, while the mame master driver s ...
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News
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Naibo
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01/27/18 10:18 AM
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Re: Added Jaleco VJ, and workable Stepstag driver
Nice. YUV output is really useful, as there're many machines with full-motion videos. Let me study the mame output code...
BTW, just wondering wheth ...
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News
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Naibo
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01/27/18 12:47 AM
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Re: Added Jaleco VJ, and workable Stepstag driver
The palette is in 32-bit format: 8-bit for each U, Y1, V, and Y2. I tried to convert it to RGB in the palette-ram-writing handler(to verify its format ...
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News
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Naibo
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01/25/18 03:39 AM
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Re: Added Jaleco VJ, and workable Stepstag driver
VJ, boot into self-test, since only the main CPU board is available so far:
(There should be 2 sprite rom chips missing on the current board)
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News
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Naibo
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01/24/18 08:18 PM
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Added Jaleco VJ, and workable Stepstag driver
The palette of stepstag is in YUV(UYVY) format, each 4-byte entry may contain 2 pixels. Is this format supported in MAME?
I've some difficulty using ...
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News
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Naibo
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01/24/18 08:16 PM
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Re: DU: Saturday morning bits (updated)
Thanks for your information.
Just did some further studying: the 0xff only happened in the front 2MBytes of the two 4MB rom data files, while the 2nd ...
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News
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Naibo
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01/08/18 09:42 AM
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Re: DU: Saturday morning bits (updated)
Made a working stepping stage driver, and then tried the new dumped vj with it. Yes, vj uses the similar hardware -- two 68000 based boards, and a Win ...
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News
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Naibo
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01/07/18 07:00 AM
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Re: DU: Saturday morning bits (updated)
> coolmod dumped VJ Dash 1.2 by Jaleco but it appears to be missing a board or large
> data holder
It is likely similar to Jaleco's "Stepp ...
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News
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Naibo
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12/30/17 11:21 PM
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Re: Is the 3D-models ripping from Model 2 games possible?
BTW, can anyone remember, if this bus really appears in vcop2, model-2 arcade version?
Thanks!
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Programming
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Naibo
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09/09/17 09:02 PM
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Re: Is the 3D-models ripping from Model 2 games possible?
I've tried to extract some models from model1/2 before. Main technical difficulties are:
1. Most models are stored as many small parts. The way how t ...
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Programming
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Naibo
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09/09/17 08:48 PM
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Re: R. Belmont WIP: China Educational Computer I (CEC-I)
Got it. To enter LOGO(subset) from BASIC environment, input:
]LG
(When no DOS loaded), or
]MAXFILES1
]LOGO
(with DOS loaded)
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News
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Naibo
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08/17/17 09:08 AM
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Re: R. Belmont WIP: "跟猴子比丟 ; ; ; ; ; ; ; ; ; ; ;屎" (China Educational Computer I (CEC-I))
Let me try to find some 1980's programmer's manuals for the CEC-I. Maybe from a library...
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News
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Naibo
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08/11/17 10:20 PM
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Re: R. Belmont WIP: "跟猴子比丟 ; ; ; ; ; ; ; ;屎" (China Educational Computer I (CEC-I))
It uses 'Pinyin' method, maybe some others as well, such as a telegraph-like 4-digit encoding.
The CEC-I was quite popular in the mid-to-late-1980's ...
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News
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Naibo
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08/11/17 02:27 AM
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