Posted By
Luca
on 2008-01-10
19:57:48
 |  Re: So I want to do plus/4 gfx...
Even more incredible stuff! I saw in the sample the "press space" check falls now at $FF1D = #$E9 in order to cover the whole screen raster, and this means there are only #$4D left to complete a whole screen. Moreover, the overscan version occupies a wholesome slice of the memory.
Yape 0.78 really hates this overscan, hope it will be fixed soon.
EDIT: in the late night (I was quite tired ;) ) I tried to set a quick IRQ in order to run a SID music. No problems with the original one since $FF1D = #$CC, of course. On the countrary, I ad problems setting a little #$18 long IRQ for the music in the overscanned version: I tried to set it from #$E9 and beyond, but it never worked :(
I'll check it again after work...
About plus4emu 1.2.5: when I execute the emulator, it begins to print a long string of "4" chars, as the joy1 stucks to the right. Rotating randomly the joy1 stops the bug. Why? I had had a real plus4 with the same bug.
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