vga memory address fix

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@591 c046a42c-6fe2-441c-8c8c-71466251a162
2004-01-27 00:14:11 +00:00 · 2004-01-27 00:14:11 +00:00 · c92b2e845f
parent 68e73e391f
commit c92b2e845f
1 changed files with 4 additions and 0 deletions
--- a/hw/vga.c
+++ b/hw/vga.c
@ -494,6 +494,8 @@ static uint32_t vga_mem_readb(uint32_t addr)
    default:
    case 3:
        addr -= 0xb8000;
+        if (addr >= 0x8000)
+            return 0xff;
        break;
    }
    
@ -570,6 +572,8 @@ void vga_mem_writeb(uint32_t addr, uint32_t val)
    default:
    case 3:
        addr -= 0xb8000;
+        if (addr >= 0x8000)
+            return;
        break;
    }