locore.S

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * locore.S
 4 */
 5#include <asm/asm.h>
 6#include <asm/regdef.h>
 7#include <asm/mipsregs.h>
 8
 9	.text
10
11/*
12 * Simple general exception handling routine. This one is used for the
13 * Memory sizing routine for pmax machines. HK
14 */
15
16NESTED(genexcept_early, 0, sp)
17	.set	noat
18	.set	noreorder
19
20	mfc0	k0, CP0_STATUS
21	la	k1, mem_err
22
23	sw	k0, 0(k1)
24
25	mfc0	k0, CP0_EPC
26	nop
27	addiu	k0, 4		# skip the causing instruction
28	jr	k0
29	 rfe
30END(genexcept_early)