MESS 0.155 out... more updates to the 7800 driver

[+RevEng]

MESS 0.155 is out, and it has some updates 7800 developers will be interested in. My own summary...

 

• DMA limiting has been implemented. All of the usual 7800 emulators gave MARIA infinite time to render a line. In MESS, now MARIA will stop rendering if too much time has passed. [Trebor, RevEng]
• Last Line DMA time has been corrected to its measured value. [Trebor, RevEng]
• Blank scanlines are now drawn when DMA is off. [Trebor, RevEng]
• Separate XM emulation, including YM2151 sound chip. [etabeta]
• HSC passthru cart emulation added. [etabeta]
• Massive code cleanup, and major reorganization. [etabeta]

   

The official list of changes is here.

 

During testing of this one, Trebor came across a lot of "bugs" in emulation that we discovered weren't actually bugs at all, but instead were glitches that occurred on real hardware too. While it's a good idea to test your code on real hardware, this release makes it a lot less risky for those times you can't.

[Dan Iacovelli]

i have to d/l mess one of these days if I want to get into 7800 basic programing.

I should have picked up the 7800 power supply at CGE, the thing about it that it wasn't ina box and it was loose in bag with other stuff, and

that threw me off because didn't know if it was a working one or not.