diff options
Diffstat (limited to 'hw/vga.c')
| -rw-r--r-- | hw/vga.c | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -597,6 +597,7 @@ static void vbe_ioport_write(void *opaque, uint32_t addr, uint32_t val) s->sr[0x01] &= ~8; /* no double line */ } else { shift_control = 2; + s->sr[4] |= 0x08; /* set chain 4 mode */ } s->gr[0x05] = (s->gr[0x05] & ~0x60) | (shift_control << 5); s->cr[0x09] &= ~0x9f; /* no double scan */ @@ -1768,6 +1769,13 @@ int vga_initialize(DisplayState *ds, uint8_t *vga_ram_base, register_ioport_write(0x1ce, 1, 2, vbe_ioport_write, s); register_ioport_write(0x1cf, 1, 2, vbe_ioport_write, s); + + /* old Bochs IO ports */ + register_ioport_read(0xff80, 1, 2, vbe_ioport_read, s); + register_ioport_read(0xff81, 1, 2, vbe_ioport_read, s); + + register_ioport_write(0xff80, 1, 2, vbe_ioport_write, s); + register_ioport_write(0xff81, 1, 2, vbe_ioport_write, s); #endif vga_io_memory = cpu_register_io_memory(0, vga_mem_read, vga_mem_write); |