?? irq.asm
字號(hào):
.INCLUDE hardware.inc
.PUBLIC _IRQ3, _IRQ5;
.EXTERNAL _TimeCount; // 觸發(fā)計(jì)時(shí)
.EXTERNAL Per500msSet //2Hz中斷，每次500ms時(shí)鐘
.EXTERNAL _TimeChangeCount; //計(jì)時(shí)
.text
.public
_IRQ3:
push r1,r5 to [sp]
r1 = 0x0380; //按鍵喚醒0000，0011，1000，0000
[P_INT_Clear] = r1;
pop r1,r5 from [sp];
reti;
//--------2Hz中斷------//
_IRQ5:
push r1,r5 to [sp]
r1 = 0x0008; //0000，0000，0000，1000
L_IRQ5_2Hz:
r1 = 0xFFFF; //萬(wàn)年歷時(shí)間
[Per500msSet] = r1;
r1 = [_TimeCount]; //計(jì)時(shí)
r1 += 1;
[_TimeCount] = r1;
r1=0x0004 //0000，0000，0000，0100
[P_INT_Clear] = r1;
pop r1,r5 from [sp];
reti;
.endp?? 快捷鍵說(shuō)明
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