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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2006-09-15 QiuYi The first version.
*/
/**
* @addtogroup I386
*/
/*@{*/
#define ENTRY(proc)\
.align 2;\
.globl proc;\
.type proc,@function;\
proc:
#define TRAPFNC(name,num)\
ENTRY(name)\
pushl $(num);\
jmp _traps;\
.data;\
.long name;\
.text
#define TRAPFNC_NOEC(name,num)\
ENTRY(name)\
pushl $0;\
pushl $(num);\
jmp _traps;\
.data;\
.long name;\
.text
.globl trap_func
.data
.align 4
.type trap_func,@object
trap_func :
.text
/* CPU traps */
TRAPFNC_NOEC(Xdivide, 0)
TRAPFNC_NOEC(Xdebug, 1)
TRAPFNC_NOEC(Xnmi, 2)
TRAPFNC_NOEC(Xbrkpt, 3)
TRAPFNC_NOEC(Xoflow, 4)
TRAPFNC_NOEC(Xbound, 5)
TRAPFNC_NOEC(Xillop, 6)
TRAPFNC_NOEC(Xdevice, 7)
TRAPFNC (Xdblflt, 8)
TRAPFNC (Xtss, 9)
TRAPFNC (Xsegnp, 10)
TRAPFNC (Xstack, 11)
TRAPFNC (Xgpflt, 12)
TRAPFNC (Xpgflt, 13)
TRAPFNC_NOEC(Xfperr, 14)
TRAPFNC (Xalign, 15)
/* default handler -- not for any specific trap */
TRAPFNC (Xdefault, 500)
.p2align 4,0x90
.globl _traps
.type _traps,@function
.globl rt_interrupt_enter
.globl rt_interrupt_leave
_traps:
push %ds
push %es
pushal
movw $0x10,%ax
movw %ax,%ds
movw %ax,%es
pushl %esp
call rt_interrupt_enter
movl %esp, %eax
addl $0x2c,%eax /*get trapno*/
movl (%eax),%eax
pushl %eax /*push trapno*/
call rt_hw_trap_irq
addl $4,%esp
call rt_interrupt_leave
popl %esp
popal
pop %es
pop %ds
add $8,%esp
iret
/*@}*/
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