isr.asm

电子词典的设计开发

.INCLUDE hardware.inc

				
.EXTERNAL	F_Key_Scan;
.TEXT
.PUBLIC _BREAK;
.PUBLIC _FIQ;
.PUBLIC _IRQ0;
.PUBLIC _IRQ1;
.PUBLIC _IRQ2;
.PUBLIC _IRQ3;
.PUBLIC _IRQ4;
.PUBLIC _IRQ5;
.PUBLIC _IRQ6;
.PUBLIC _IRQ7;










//============================================================================================
//函数: FIQ()，IRQ0(),IRQ1(),IRQ2(),IRQ3(),IRQ4(),IRQ5(),IRQ6(),IRQ7()
//语法：void FIQ(void ),void IRQ0(void ),void IRQ1(void ),void IRQ2(void ),void IRQ3(void ),
//      void IRQ4(void ),void IRQ5(void ),void IRQ6(void ),void IRQ7(void )
//描述：FIQ()，IRQ0(),IRQ1(),IRQ2(),IRQ3(),IRQ4(),IRQ5(),IRQ6(),IRQ7()中断服务子程序
//参数：无
//返回：无
//=============================================================================================               
_FIQ:
   PUSH r1,r5 TO [sp];
   r1 = C_FIQ_PWM;
   TEST r1,[P_INT_Ctrl];
   JNE    L_FIQ_PWM;
   r1 = C_FIQ_TMA;
   TEST r1,[P_INT_Ctrl];
   JNE L_FIQ_TimerA;
L_FIQ_TimerB:
   POP r1,r5 FROM[sp];
   RETI;
L_FIQ_PWM:                                     
   [P_INT_Clear] = r1;
  POP r1,r5 FROM[sp];
  RETI;
L_FIQ_TimerA:
  [P_INT_Clear] = r1;
  POP r1,r5 FROM[sp];
  RETI;
 
                


_BREAK:        
    PUSH r1,r4 TO [sp];
    POP r1,r4 FROM[sp];
    RETI;
_IRQ0:        
    PUSH r1,r4 TO [sp];
    POP r1,r4 FROM[sp];
    RETI;
_IRQ1:        
    PUSH r1,r4 TO [sp];
    POP r1,r4 FROM[sp];
    RETI;
_IRQ2:        
    PUSH r1,r5 TO [sp];
    
    [P_INT_Clear] = r1;
    POP r1,r5 FROM[sp];
    RETI;
_IRQ3:
    PUSH r1,r4 TO [sp];
    POP r1,r4 FROM[sp];
    RETI;
_IRQ4:        
    PUSH r1,r1 TO [sp];
    [P_INT_Clear] = r1;
    POP r1,r1 FROM[sp];
    RETI;
_IRQ5:        
    PUSH r1,r4 TO [sp];
    POP r1,r4 FROM[sp];
    RETI;
_IRQ6:        
   	PUSH r1,r4 to [sp];
	r1=0x0001;
	TEST r1,[P_INT_Ctrl];
	JNZ  _IRQ6_TMB2;
	r1=0x0002;
	[P_INT_Clear]=r1;
	POP r1,r4 FROM [sp];
    RETI;         
_IRQ6_TMB2:
	[P_INT_Clear]=r1;
	CALL	F_Key_Scan;
	POP r1,r4 FROM [sp];
    RETI;  
_IRQ7:        
    PUSH r1,r4 TO [sp];
    POP r1,r4 FROM[sp];
    RETI;
//========================================================================================        
//  isr.asm结束
//========================================================================================