diff options
| -rw-r--r-- | hw/cirrus_vga.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c index 6164f2bd5..752904222 100644 --- a/hw/cirrus_vga.c +++ b/hw/cirrus_vga.c @@ -860,11 +860,17 @@ static void cirrus_bitblt_cputovideo_next(CirrusVGAState * s) static void cirrus_bitblt_reset(CirrusVGAState * s) { + int need_update; + s->gr[0x31] &= ~(CIRRUS_BLT_START | CIRRUS_BLT_BUSY | CIRRUS_BLT_FIFOUSED); + need_update = s->cirrus_srcptr != &s->cirrus_bltbuf[0] + || s->cirrus_srcptr_end != &s->cirrus_bltbuf[0]; s->cirrus_srcptr = &s->cirrus_bltbuf[0]; s->cirrus_srcptr_end = &s->cirrus_bltbuf[0]; s->cirrus_srccounter = 0; + if (!need_update) + return; cirrus_update_memory_access(s); } |