diff options
Diffstat (limited to 'hw/vga.c')
| -rw-r--r-- | hw/vga.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/hw/vga.c b/hw/vga.c index 4dc2610314..cf9b39ffe6 100644 --- a/hw/vga.c +++ b/hw/vga.c @@ -1742,17 +1742,10 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) if (!(s->cr[0x17] & 2)) { addr = (addr & ~0x8000) | ((y1 & 2) << 14); } - page0 = addr & TARGET_PAGE_MASK; - page1 = (addr + bwidth - 1) & TARGET_PAGE_MASK; - update = full_update | - memory_region_get_dirty(&s->vram, page0, DIRTY_MEMORY_VGA) | - memory_region_get_dirty(&s->vram, page1, DIRTY_MEMORY_VGA); - if ((page1 - page0) > TARGET_PAGE_SIZE) { - /* if wide line, can use another page */ - update |= memory_region_get_dirty(&s->vram, - page0 + TARGET_PAGE_SIZE, - DIRTY_MEMORY_VGA); - } + page0 = addr; + page1 = addr + bwidth - 1; + update = memory_region_get_dirty(&s->vram, page0, page1, + DIRTY_MEMORY_VGA); /* explicit invalidation for the hardware cursor */ update |= (s->invalidated_y_table[y >> 5] >> (y & 0x1f)) & 1; if (update) { @@ -1798,7 +1791,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update) if (page_max >= page_min) { memory_region_reset_dirty(&s->vram, page_min, - page_max + TARGET_PAGE_SIZE - page_min, + page_max - page_min, DIRTY_MEMORY_VGA); } memset(s->invalidated_y_table, 0, ((height + 31) >> 5) * 4); |