+static bool vga_scanline_invalidated(VGACommonState *s, int y)
+{
+ if (y >= VGA_MAX_HEIGHT) {
+ return false;
+ }
+ return s->invalidated_y_table[y >> 5] |= 1 << (y & 0x1f);
+}
+
void vga_sync_dirty_bitmap(VGACommonState *s)
{
memory_region_sync_dirty_bitmap(&s->vram);
@@ -1638,8 +1646,8 @@ static void vga_draw_graphic(VGACommonState *s, int
full_update)
page1 = addr + bwidth - 1;
update |= memory_region_get_dirty(&s->vram, page0, page1 - page0,
DIRTY_MEMORY_VGA);
- /* explicit invalidation for the hardware cursor */
- update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1;
+ /* explicit invalidation for the hardware cursor (cirrus only) */
+ update |= vga_scanline_invalidated(s, y);