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atimach64gx: Calculate vert_blank. 

So it's not always zero.
This commit is contained in:
joevt 2024-02-28 16:09:02 -08:00 committed by dingusdev
parent aa33a1644c
commit 7eb9a66837
1 changed files with 6 additions and 0 deletions
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6
devices/video/atimach64gx.cpp
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@ -602,6 +602,12 @@ void AtiMach64Gx::crtc_update()
need_recalc = true;
}
uint32_t new_vert_blank = new_vtotal - new_height;
if (new_vert_blank != this->vert_blank) {
this->vert_blank = vert_blank;
need_recalc = true;
}
int new_pixel_format = this->dac_regs[Rgb514::PIX_FORMAT];
if (new_pixel_format != this->pixel_format) {
this->pixel_format = new_pixel_format;