mirror of
https://github.com/isfshax/isfshax.git
synced 2024-09-09 17:13:18 +02:00
57 lines
1.1 KiB
ArmAsm
57 lines
1.1 KiB
ArmAsm
![]() |
/*
|
||
|
* minute - a port of the "mini" IOS replacement for the Wii U.
|
||
|
*
|
||
|
* Copyright (C) 2016 SALT
|
||
|
* Copyright (C) 2016 Daz Jones <daz@dazzozo.com>
|
||
|
*
|
||
|
* Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcansoft.com>
|
||
|
*
|
||
|
* This code is licensed to you under the terms of the GNU GPL, version 2;
|
||
|
* see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
|
||
|
*/
|
||
|
|
||
|
#include "latte.h"
|
||
|
//#include "irq.h"
|
||
|
|
||
|
.globl v_irq
|
||
|
.globl irq_setup_stack
|
||
|
.globl irq_kill
|
||
|
.globl irq_restore
|
||
|
.extern __irqstack_addr
|
||
|
.extern irq_handler
|
||
|
|
||
|
irq_setup_stack:
|
||
|
@ Switch to IRQ mode
|
||
|
mrs r0, cpsr
|
||
|
msr cpsr_c, #0xd2
|
||
|
|
||
|
@ Setup interrupt stack
|
||
|
ldr sp, =__irqstack_addr
|
||
|
|
||
|
@ Restore mode
|
||
|
msr cpsr_c, r0
|
||
|
bx lr
|
||
|
|
||
|
v_irq:
|
||
|
push {r0-r3, r9, r12, lr}
|
||
|
|
||
|
blx irq_handler
|
||
|
|
||
|
pop {r0-r3, r9, r12, lr}
|
||
|
subs pc, lr, #4
|
||
|
|
||
|
irq_kill:
|
||
|
mrs r1, cpsr
|
||
|
and r0, r1, #(0x80|0x40)
|
||
|
orr r1, r1, #(0x80|0x40)
|
||
|
msr cpsr_c, r1
|
||
|
bx lr
|
||
|
|
||
|
irq_restore:
|
||
|
mrs r1, cpsr
|
||
|
bic r1, r1, #(0x80|0x40)
|
||
|
orr r1, r1, r0
|
||
|
msr cpsr_c, r1
|
||
|
bx lr
|
||
|
|