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switch video mode hack by dropping to real mode to call the video bios works!
[bootcensus]
/
src
/
startup.s
diff --git
a/src/startup.s
b/src/startup.s
index
bff3991
..
8041c13
100644
(file)
--- a/
src/startup.s
+++ b/
src/startup.s
@@
-19,17
+19,28
@@
.extern _bss_start
.extern _bss_end
.extern _bss_start
.extern _bss_end
+ .extern pcboot_main
+
+ # move the stack to the top of the conventional memory
+ movl $0x80000, %esp
# zero the BSS section
xor %eax, %eax
# zero the BSS section
xor %eax, %eax
- mov _bss_start, %edi
- mov _bss_size, %ecx
+ mov $_bss_start, %edi
+ mov $_bss_size, %ecx
+ cmp $0, %ecx
jz skip_bss_zero
shr $4, %ecx
rep stosl
skip_bss_zero:
jz skip_bss_zero
shr $4, %ecx
rep stosl
skip_bss_zero:
+ call pcboot_main
+ # pcboot_main never returns
+0: cli
+ hlt
+ jmp 0b
+ .global logohack
logohack:
# copy palette
mov $logo_pal, %esi
logohack:
# copy palette
mov $logo_pal, %esi