fiq.asm

来自「spce061单片机的一些程序！C语言和汇编语言都有」· 汇编 代码 · 共 50 行

//===================================================
//文件名称:FIQ.asm
//功能描述:中断放音
//完成日期:2003-6-12
//======================================================
.PUBLIC _FIQ
//...............................................
.EXTERNAL _BSR_FIQ_Routine
.EXTERNAL __gIsStopRecog //This variable = 0 if recognizer is busy,
						 //              = 1 if recognizer is stopped,
						 //              = 2 if recognizer is paused.

.PUBLIC _BREAK,_IRQ0, _IRQ1, _IRQ2, _IRQ3, _IRQ4, _IRQ5, _IRQ6, _IRQ7
//..................................................
.INCLUDE A2000.inc;
.INCLUDE hardware.inc
.DEFINE	P_WatchDog_Clear	0x7012
.TEXT
_FIQ:
	push r1,r4 to [sp]         			//寄存器入栈
	r1=0x0001;
	[P_WatchDog_Clear]=r1;
	r1 = [P_INT_Ctrl]         			//读中断标志位
	r1 &= 0x2000   
	jz  NotTimerA             			//不是TimerA  FIQ中断
	r1 = [__gIsStopRecog]
	jnz TimerA_is_A2000
TimerA_is_Recognize:           			//TimerA  FIQ为语音识别服务
	call _BSR_FIQ_Routine      			//语音识别服务函数
	jmp NotTimerA
TimerA_is_A2000:               			//TimerA  FIQ为放音服务
	call F_FIQ_Service_SACM_A2000;    	//放音服务函数
NotTimerA:
	r1 = 0xa800;
	[P_INT_Clear] = r1;        			//清中断标志
	pop	r1,r4 from [sp];     			//寄存器出栈
	reti;


_BREAK: 
_IRQ0:
_IRQ1: 
_IRQ2: 
_IRQ3: 
_IRQ4: 
_IRQ5: 
_IRQ6: 
_IRQ7:
.END