1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <fcntl.h>
#include "v86.h"
#include "testvbe.h"
#define reg16(reg) (reg & 0xffff)
#define failed(tsk) (reg16(tsk.regs.eax) != 0x004f)
int main(int argc, char *argv[])
{
struct uvesafb_task tsk;
struct vbe_ib ib;
u16 *s;
u8 *t;
if (v86_init())
return -1;
memset(&tsk, 0, sizeof(tsk));
tsk.regs.eax = 0x4f00;
tsk.flags = TF_VBEIB;
tsk.buf_len = sizeof(ib);
strncpy((char*)&ib.vbe_signature, "VBE2", 4);
if (v86_task(&tsk, (u8*)&ib))
return -1;
if (failed(tsk)) {
fprintf(stderr, "Getting VBE Info Block failed with eax = %.4x\n",
reg16(tsk.regs.eax));
return -1;
}
t = (u8*)&ib;
printf("VBE Version: %x.%.2x\n", ((ib.vbe_version & 0xf00) >> 8), (ib.vbe_version & 0xff));
printf("OEM String: %s\n", ib.oem_string_ptr + t);
printf("OEM Vendor Name: %s\n", ib.oem_vendor_name_ptr + t);
printf("OEM Prod. Name: %s\n", ib.oem_product_name_ptr + t);
printf("OEM Prod. Rev: %s\n", ib.oem_product_rev_ptr + t);
printf("\n%-6s %-6s mode\n", "ID", "attr");
printf("---------------------------\n");
for (s = t + ib.mode_list_ptr; *s != 0xffff; s++) {
struct vbe_mode_ib mib;
memset(&tsk, 0, sizeof(tsk));
tsk.regs.eax = 0x4f01;
tsk.regs.ecx = *s;
tsk.flags = TF_BUF_RET | TF_BUF_ESDI;
tsk.buf_len = sizeof(mib);
if (v86_task(&tsk, (u8*)&mib))
return -1;
if (failed(tsk)) {
fprintf(stderr, "Getting Mode Info Block for mode %.4x "
"failed with eax = %.4x\n", *s, reg16(tsk.regs.eax));
return -1;
}
printf("%-6.4x %-6.4x %dx%d-%d %x\n", *s, mib.mode_attr,
mib.x_res, mib.y_res, mib.bits_per_pixel, mib.phys_base_ptr);
}
v86_cleanup();
return 0;
}
|
