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Calculate horizontal sync timings. Fixes Titus the Fox with Hercules emulation.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3559
This commit is contained in:
Ralf Grillenberger 2010-03-13 16:24:19 +00:00
parent 3689afd77e
commit 3e4f029a49
1 changed files with 3 additions and 2 deletions
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5
src/hardware/vga_draw.cpp
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@ -1098,8 +1098,9 @@ void VGA_SetupDrawing(Bitu /*val*/) {
// Start and End of horizontal blanking
vga.draw.delay.hblkstart = hbstart*1000.0/clock; //in milliseconds
vga.draw.delay.hblkend = hbend*1000.0/clock;
vga.draw.delay.hrstart = 0;
// Start and End of horizontal retrace
vga.draw.delay.hrstart = hrstart*1000.0/clock;
vga.draw.delay.hrend = hrend*1000.0/clock;
// Start and End of vertical blanking
vga.draw.delay.vblkstart = vbstart * vga.draw.delay.htotal;
vga.draw.delay.vblkend = vbend * vga.draw.delay.htotal;