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Define mouse cursor range : detect and handle 'wrong' parameters

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@561
This commit is contained in:
Ulf Wohlers 2002-12-05 15:58:01 +00:00
parent ca712c0043
commit 0db8c2700f
1 changed files with 14 additions and 4 deletions
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18
src/ints/mouse.cpp
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@ -449,12 +449,22 @@ static Bitu INT33_Handler(void) {
break;
}
case 0x07: /* Define horizontal cursor range */
mouse.min_x=reg_cx;
mouse.max_x=reg_dx;
if (reg_cx<reg_dx) {
mouse.min_x=reg_cx;
mouse.max_x=reg_dx;
} else {
mouse.min_x=reg_dx;
mouse.max_x=reg_cx;
};
break;
case 0x08: /* Define vertical cursor range */
mouse.min_y=reg_cx;
mouse.max_y=reg_dx;
if (reg_cx<reg_dx) {
mouse.min_y=reg_cx;
mouse.max_y=reg_dx;
} else {
mouse.min_y=reg_dx;
mouse.max_y=reg_cx;
};
break;
case 0x09: /* Define GFX Cursor */
{