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This commit is contained in:
Kartik K. Agaram 2021-03-18 22:49:20 -07:00
parent e4a224d3a9
commit 31e1c46803
1 changed files with 2 additions and 2 deletions
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4
boot.subx
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@ -131,7 +131,7 @@
# We can't refer to the label directly because SubX doesn't do the right
# thing for lgdt, so rather than make errors worse in most places we instead
# pin gdt_descriptor below.
0f 01/lgdt 2/subop/lgdt 0/mod/indirect 6/rm32/use-disp16 0x7cf8/disp16/gdt_descriptor
0f 01 2/subop/lgdt 0/mod/indirect 6/rm32/use-disp16 0x7cf8/disp16/gdt_descriptor
# enable paging
0f 20/<-cr 3/mod/direct 0/rm32/eax 0/r32/cr0
66 83 1/subop/or 3/mod/direct 0/rm32/eax 1/imm8 # eax <- or 0x1
@ -200,7 +200,7 @@ initialize_32bit_mode:
# We can't refer to the label directly because SubX doesn't do the right
# thing for lidt, so rather than make errors worse in most places we instead
# pin idt_descriptor below.
0f 01/lidt 3/subop/lidt 0/mod/indirect 5/rm32/use-disp32 0x8000/disp32/idt_descriptor
0f 01 3/subop/lidt 0/mod/indirect 5/rm32/use-disp32 0x8000/disp32/idt_descriptor
# For now, not bothering reprogramming the IRQ to not conflict with software
# exceptions.