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fixed VBE bugs
[bootcensus]
/
src
/
vbe.c
diff --git
a/src/vbe.c
b/src/vbe.c
index
d4847d2
..
933ffe5
100644
(file)
--- a/
src/vbe.c
+++ b/
src/vbe.c
@@
-16,15
+16,19
@@
struct vbe_info *vbe_get_info(void)
struct vbe_info *info;
struct int86regs regs;
struct vbe_info *info;
struct int86regs regs;
+ printf("vbe_get_info... ");
+
info = (struct vbe_info*)low_mem_buffer;
memcpy(info->sig, "VBE2", 4);
memset(®s, 0, sizeof regs);
info = (struct vbe_info*)low_mem_buffer;
memcpy(info->sig, "VBE2", 4);
memset(®s, 0, sizeof regs);
- regs.es = (uint32_t)low_mem_buffer >> 4;
+ regs.es = (uint32_t)info >> 4;
regs.eax = 0x4f00;
int86(0x10, ®s);
regs.eax = 0x4f00;
int86(0x10, ®s);
+ printf("status: %d\n", (regs.eax >> 8) & 0xff);
+
if((regs.eax & 0xffff) != 0x4f) {
return 0;
}
if((regs.eax & 0xffff) != 0x4f) {
return 0;
}
@@
-37,10
+41,10
@@
struct vbe_mode_info *vbe_get_mode_info(int mode)
struct vbe_mode_info *mi;
struct int86regs regs;
struct vbe_mode_info *mi;
struct int86regs regs;
- mi = (struct vbe_mode_info*)low_mem_buffer;
+ mi = (struct vbe_mode_info*)(low_mem_buffer + 512);
memset(®s, 0, sizeof regs);
memset(®s, 0, sizeof regs);
- regs.es = (uint32_t)low_mem_buffer >> 4;
+ regs.es = (uint32_t)mi >> 4;
regs.eax = 0x4f01;
regs.ecx = mode;
int86(0x10, ®s);
regs.eax = 0x4f01;
regs.ecx = mode;
int86(0x10, ®s);