Home Page Forums MAME MAME cpc 6128 - demo

There is a problem with how we handle the 3" floppy interface, I see problems accessing B: for the PCW driver, don't know if it is related but I plan to iron it out some rainy day with a logic analyzer and compare with how MAME handles it. It is related to disk select and the ready signals I suspect

hi

some work at crtc level i think

http://www.cpc-power.com/index.php?page=detail&num=16466

hello

this demo have a sync problem with rasters

https://www.cpc-power.com/index.php?page=detail&onglet=dumps&num=16075

hello

is it possible to run 6128 with a crtc1 ?

to play this demo
https://www.cpc-power.com/index.php?page=detail&num=7529

thanks in advance

That demo doesn't work in MAME because the specific quirks of the CRTC1 UM6845R are not emulated.
Use WinAPE.
Use the File menu to open the dsk image in drive A,
Under Settings - General, select CPC6128 profile, in drop-down box select CRTC1 type 1-UM6845R, make sure Plus PPI Emulation is checked.
Load the demo by typing RUN"-SCRATCH"