Archive for October, 2008

I wanted to be the first kid on my block to get a confirmed kill

Sunday, October 26th, 2008

I’m currently doing some major work to the jalmah.c driver,in order to fix most of the issues in it and in search of new protection issues.Some WIP shots:

Mahjong Kakumei

Mahjong Daireikai

Mahjong Channel Zoom-In

Urashima Mahjong

You can’t lose what you don’t put in the middle…but you can’t win much either

Wednesday, October 22nd, 2008

Finished for good the protection vectors in Double Dealer.Now I have to write the coin/credit simulation (which is handled by the MCU) and finish the video hardware,but the bigger part is actually done.



The “girl” snap is actually from the attract mode…

Don’t have a razor blade

Monday, October 20th, 2008

Found the way Double Dealer properly writes cards to the vram area.I’ve overlooked that there are cards graphics into the text vram rom,so I’ve quickly found how to write them to the playfield.Now it’s time to hook-up the x/y position for cards movement…


By the way,yesterday I’ve fixed the controls in Yumefuda so it will be working on the 0.128u1 release…

If you wanna bring it you can swing it directly

Saturday, October 18th, 2008

Checking at magzun (ST-V driver)…it will check a “sub-board” and it hangs because of that…I need to do some testing to get further of this:


Each generation be thinkin’ that the next one is whack

Tuesday, October 14th, 2008

Working at the Yumefuda colors.It appears to use the b000-b0ff region as two individual banks splitted in half (and the HW itself calls colors in the 0-7 range).Additionally color bits appears to be scrambled,so the madness is complete.

Preliminary screenshot:


It doesn’t help that I’m doing wild guesses based on the Hanafuda based-games…

In the other news,fixed the input and the sound in Good,so that the game is fully playable in the next version.

*edit* found the proper way,uses xRRRRRGG|GGGBBBBB format,used in some M68k games but is really weird to apply it in a Z80 HW game:


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