Home Page Forums MAME MAME The SNES WIP topic

Some hacking around



Doesn't yet recognize the cart due of the protection chip check, it either doesn't work for this or the PROMs provided aren't good enough.

Mr. Desert Eagle, .50

Added shadow ROM copy, giving a much nicer charset. The original ROM could actually be 2bpp, but ... we'll see

Got the maths for horizontal / vertical size, used by the Nintendo Super System logo so far.

Regarding the overlay, maybe just have the OSD a frame behind and copy lines from its buffer in the SNES line update? Not optimal, but there's not going to be any fast action on the OSD screen

A problem comes with the fact that the OSD video has a different resolution compared to the SNES one tho (288 x 216 vs. 512 x 225). That's obviously more a framework problem rather than a raw emulation one.

that's even worse than the PCE / PC-FX layer situation because you don't have an easy resolution you can scale up to with a common integer divisor, although I don't think it's possible to have 2 different vertical resolutons? the display would never sync.

I guess non-integer scaling on the x won't matter as much here as it's not scrolling, but if you want to see what happens if you do that on scrolling games look at the horrible mess that is a lot of PCE games with the old video implementation where pixels get bigger/smaller and give a very visible wobble to everything.

Oh, yuck. In that case, do what Aaron said with VIDEO_SELF_RENDER

Super Famicom Box:





We don't have a proper charset this time around, screens are based off a "random" ASCII-based charset.

Just playing 'Super Mario World' and on the first castle level I get this.



Don't know if you know about this display bug?