gwj / at91sam9263 · Commits

Commit 646be93b4cc87635ffa03e044d1d21f5c80403c1

Authored by bellard
1 parent 26aa7d72

Bochs VBE emulation fix 


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@774 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 1 changed file with 8 additions and 0 deletions
hw/vga.c
  View file @646be93
... ... @@ -597,6 +597,7 @@ static void vbe_ioport_write(void *opaque, uint32_t addr, uint32_t val)
597 597 s->sr[0x01] &= ~8; /* no double line */
598 598 } else {
599 599 shift_control = 2;
  600 + s->sr[4] |= 0x08; /* set chain 4 mode */
600 601 }
601 602 s->gr[0x05] = (s->gr[0x05] & ~0x60) | (shift_control << 5);
602 603 s->cr[0x09] &= ~0x9f; /* no double scan */
... ... @@ -1768,6 +1769,13 @@ int vga_initialize(DisplayState *ds, uint8_t *vga_ram_base,
1768 1769  
1769 1770 register_ioport_write(0x1ce, 1, 2, vbe_ioport_write, s);
1770 1771 register_ioport_write(0x1cf, 1, 2, vbe_ioport_write, s);
  1772 +
  1773 + /* old Bochs IO ports */
  1774 + register_ioport_read(0xff80, 1, 2, vbe_ioport_read, s);
  1775 + register_ioport_read(0xff81, 1, 2, vbe_ioport_read, s);
  1776 +
  1777 + register_ioport_write(0xff80, 1, 2, vbe_ioport_write, s);
  1778 + register_ioport_write(0xff81, 1, 2, vbe_ioport_write, s);
1771 1779 #endif
1772 1780  
1773 1781 vga_io_memory = cpu_register_io_memory(0, vga_mem_read, vga_mem_write);
... ...