microblaze: Dont segfault when singlestepping first insn.
[qemu/agraf.git] / hw / vga-isa.c
blob793714417ad3c51e59bd65e768d5f7ac30b820cf
1 /*
2 * QEMU ISA VGA Emulator.
4 * Copyright (c) 2003 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
24 #include "hw.h"
25 #include "console.h"
26 #include "pc.h"
27 #include "vga_int.h"
28 #include "pixel_ops.h"
29 #include "qemu-timer.h"
30 #include "loader.h"
32 int isa_vga_init(void)
34 VGACommonState *s;
36 s = qemu_mallocz(sizeof(*s));
38 vga_common_init(s, VGA_RAM_SIZE);
39 vga_init(s);
40 vmstate_register(0, &vmstate_vga_common, s);
42 s->ds = graphic_console_init(s->update, s->invalidate,
43 s->screen_dump, s->text_update, s);
45 vga_init_vbe(s);
46 /* ROM BIOS */
47 rom_add_vga(VGABIOS_FILENAME);
48 return 0;