linux-zen-server/arch/sh/kernel/cpu/sh2/ex.S

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2023-08-30 17:53:23 +02:00
/* SPDX-License-Identifier: GPL-2.0
*
* arch/sh/kernel/cpu/sh2/ex.S
*
* The SH-2 exception vector table
*
* Copyright (C) 2005 Yoshinori Sato
*/
#include <linux/linkage.h>
!
! convert Exception Vector to Exception Number
!
exception_entry:
no = 0
.rept 256
mov.l r1,@-sp
bra exception_trampoline
mov #no,r1
no = no + 1
.endr
exception_trampoline:
mov.l r0,@-sp
mov.l $exception_handler,r0
extu.b r1,r1
jmp @r0
extu.w r1,r1
.align 2
$exception_entry:
.long exception_entry
$exception_handler:
.long exception_handler
!
! Exception Vector Base
!
.align 2
ENTRY(vbr_base)
vector = 0
.rept 256
.long exception_entry + vector * 6
vector = vector + 1
.endr