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Don't set up tiles for update if screen parameters are invalid.

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This commit is contained in:
Volker Ruppert 2024-01-28 10:31:06 +01:00
parent 19fc78d2db
commit 2c4b9e9457
1 changed files with 2 additions and 0 deletions
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bochs/iodev/display/vgacore.cc
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@ -2276,6 +2276,8 @@ void bx_vgacore_c::redraw_area(unsigned x0, unsigned y0, unsigned width, unsigne
// graphics mode
xmax = BX_VGA_THIS s.last_xres;
ymax = BX_VGA_THIS s.last_yres;
if ((xmax == 0) || (ymax == 0))
return;
xt0 = x0 / X_TILESIZE;
yt0 = y0 / Y_TILESIZE;
if (x0 < xmax) {