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-rw-r--r--hw/cirrus_vga.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
index 4b92b40..13450f0 100644
--- a/hw/cirrus_vga.c
+++ b/hw/cirrus_vga.c
@@ -800,7 +800,7 @@ static void cirrus_bitblt_start(CirrusVGAState * s)
s->cirrus_blt_srcpitch,
s->cirrus_blt_dstaddr,
s->cirrus_blt_srcaddr,
- s->sr[0x2f]);
+ s->gr[0x2f]);
#endif
switch (s->cirrus_blt_mode & CIRRUS_BLTMODE_PIXELWIDTHMASK) {
@@ -1042,10 +1042,10 @@ static void cirrus_update_bank_ptr(CirrusVGAState * s, unsigned bank_index)
else
offset <<= 12;
- if (s->vram_size <= offset)
+ if (s->real_vram_size <= offset)
limit = 0;
else
- limit = s->vram_size - offset;
+ limit = s->real_vram_size - offset;
if (((s->gr[0x0b] & 0x01) == 0) && (bank_index != 0)) {
if (limit > 0x8000) {
@@ -1213,7 +1213,7 @@ cirrus_hook_write_sr(CirrusVGAState * s, unsigned reg_index, int reg_value)
#endif
break;
case 0x17: // Configuration Readback and Extended Control
- s->sr[reg_index] = reg_value;
+ s->sr[reg_index] = (s->sr[reg_index] & 0x38) | (reg_value & 0xc7);
cirrus_update_memory_access(s);
break;
default:
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