CGA Composite Mode under DOSBOX (Commited r3804)

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Re: CGA Composite Mode under DOSBOX (Commited r3804)

Postby NewRisingSun » 2016-12-14 @ 17:37

I took the liberty of modifying your program to enable the colorburst (portw(0x3D8) = 0x1A0F).
captured.png.raw.zip
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Re: CGA Composite Mode under DOSBOX (Commited r3804)

Postby reenigne » 2016-12-14 @ 21:45

NewRisingSun wrote:Are you sure you want this with the colorburst disabled?


Whoops, that was indeed an oversight.

NewRisingSun wrote:I took the liberty of modifying your program to enable the colorburst (portw(0x3D8) = 0x1A0F).
captured.png.raw.zip


Thanks - that seems to have worked wonderfully! I was half-expecting the palette register write to take too long and scribble on the leftmost block. This might still be a problem for the PCjr, but if so I can use an IRQ0 for timing.

I'm working on the calibration program now.
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Re: CGA Composite Mode under DOSBOX (Commited r3804)

Postby basic » 2016-12-23 @ 09:28

NewRisingSun wrote:Patch for PCjr composite support, tested with
  • Ultima II (special PCjr version)
  • B.C.'s Quest for Tires
  • The Seven Cities of Gold

I edited this patch, added instruction in /src/shell/shell.cpp.
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