diff options
Diffstat (limited to 'arch/sh/kernel/cpu/sh2a/ex.S')
| -rw-r--r-- | arch/sh/kernel/cpu/sh2a/ex.S | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/sh2a/ex.S b/arch/sh/kernel/cpu/sh2a/ex.S new file mode 100644 index 000000000..ed9199628 --- /dev/null +++ b/arch/sh/kernel/cpu/sh2a/ex.S @@ -0,0 +1,70 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * arch/sh/kernel/cpu/sh2a/ex.S + * + * The SH-2A exception vector table + * + * Copyright (C) 2008 Yoshinori Sato + */ + +#include <linux/linkage.h> + +! +! convert Exception Vector to Exception Number +! + +! exception no 0 to 255 +exception_entry0: +no = 0 + .rept 256 + mov.l r1,@-sp + bra exception_trampoline0 + mov #no,r1 +no = no + 1 + .endr +exception_trampoline0: + mov.l r0,@-sp + mov.l 1f,r0 + extu.b r1,r1 + jmp @r0 + extu.w r1,r1 + + .align 2 +1: .long exception_handler + +! exception no 256 to 511 +exception_entry1: +no = 0 + .rept 256 + mov.l r1,@-sp + bra exception_trampoline1 + mov #no,r1 +no = no + 1 + .endr +exception_trampoline1: + mov.l r0,@-sp + extu.b r1,r1 + movi20 #0x100,r0 + add r0,r1 + mov.l 1f,r0 + jmp @r0 + extu.w r1,r1 + + .align 2 +1: .long exception_handler + + ! +! Exception Vector Base +! + .align 2 +ENTRY(vbr_base) +vector = 0 + .rept 256 + .long exception_entry0 + vector * 6 +vector = vector + 1 + .endr +vector = 0 + .rept 256 + .long exception_entry1 + vector * 6 +vector = vector + 1 + .endr |