[Qemu-devel] [4386] cirrusfb: proper "Attribute Controller Toggle Readback" register behaviour

[Aurelien Jarno]

Revision: 4386
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4386
Author:   aurel32
Date:     2008-05-08 12:21:27 +0000 (Thu, 08 May 2008)

Log Message:
-----------
cirrusfb: proper "Attribute Controller Toggle Readback" register behaviour

(Marcelo Tosatti)

Modified Paths:
--------------
    trunk/hw/cirrus_vga.c

Modified: trunk/hw/cirrus_vga.c
===================================================================
--- trunk/hw/cirrus_vga.c       2008-05-07 23:22:46 UTC (rev 4385)
+++ trunk/hw/cirrus_vga.c       2008-05-08 12:21:27 UTC (rev 4386)
@@ -1626,13 +1626,15 @@
     case 0x17:                 // Standard VGA
     case 0x18:                 // Standard VGA
        return CIRRUS_HOOK_NOT_HANDLED;
+    case 0x24:                 // Attribute Controller Toggle Readback (R)
+        *reg_value = (s->ar_flip_flop << 7);
+        break;
     case 0x19:                 // Interlace End
     case 0x1a:                 // Miscellaneous Control
     case 0x1b:                 // Extended Display Control
     case 0x1c:                 // Sync Adjust and Genlock
     case 0x1d:                 // Overlay Extended Control
     case 0x22:                 // Graphics Data Latches Readback (R)
-    case 0x24:                 // Attribute Controller Toggle Readback (R)
     case 0x25:                 // Part Status
     case 0x27:                 // Part ID (R)
        *reg_value = s->cr[reg_index];