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.section .text.early
.global _isr_stubs
_isr_stubs:
.rept 256
pushal
call _isr_stage2
.align 8
.endr
_isr_stage2:
cli
// convert the return address into the vector nr
pop %eax
add $-_isr_stubs, %eax
shr $3, %eax
// disable paging, if present
mov %cr0, %ebx
push %ebx // push original cr0
and $0x7FFFFFFF, %ebx
mov %ebx, %cr0
mov %esp, %ebp
mov $_bss_end, %esp // switch to kernel stack
push %eax // push the vector nr
call isr_stage3
mov %ebp, %esp // switch back to isr_stack
pop %eax // restore old cr0
mov %eax, %cr0
popal
iret
.align 8
_ist_stack_btm:
// TODO overflow check
.skip 64 // seems to be enough
.global _isr_stack_top
_isr_stack_top:
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