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_interrupt_vectors:
b reset_handler_caller
b undef_handler_caller
b svc_handler_caller
b abort_handler_caller
b abort_handler_caller
b generic_handler_caller
b irq_handler_caller
b fiq_handler_caller
// from what I've heard, reset is never used on the Pi;
// in our case it should run once - when stage1 of the kernel
// jumps to stage2
reset_handler_caller:
ldr sp, =_supervisor_stack_top
ldr r5, =setup
bx r5
undef_handler_caller:
ldr sp, =_supervisor_stack_top
ldr r5, =undefined_instruction_vector
bx r5
svc_handler_caller:
ldr sp, =_supervisor_stack_top
push {r0-r12, lr}
mov r0, sp
ldr r5, =supervisor_call_handler
blx r5
ldm sp!, {r0-r12, pc} ^
abort_handler_caller:
ldr sp, =_supervisor_stack_top
ldr r5, =abort_handler
bx r5
generic_handler_caller:
ldr sp, =_supervisor_stack_top
ldr r5, =generic_handler
bx r5
irq_handler_caller:
ldr sp, =_irq_stack_top
sub lr, #4
push {r0-r12, lr}
mov r0, sp
ldr r3, =irq_handler
blx r3
ldm sp!, {r0-r12, pc} ^
fiq_handler_caller:
ldr sp, =_fiq_stack_top
ldr r5, =fiq_handler
bx r5
irq:
mov sp, #0x8000
ldr r5, =abort_handler
subs pc,lr,#4
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