以下是汇编语言,请将它改成C51单片机语言,令他符合逻辑。 ORG 0000H LJMP MAIN ORG 0003H LJMP PINT0 ORG 0200H MAIN: MOV IE,#81H; SETB IT0; MOV SP,#30H SETB P3.0 CLR P3.1 MOV P1,#0FFH; MOV P2,#00H; CLR P1.2 LP: JNB P1.0,LA; LA: ACALL DELAY; JNB P1.0,ALARM AJMP LP DELAY: MOV R1,0AAH LD2: MOV R2,0BBH LD1: NOP DJNZ R2,LD1 DJNZ R1,LD2 RET ALARM: SETB P1.2 CPL P3.0 CPL P3.1 ;10S time MOV 51H,#14H MOV TMOD,#01H; MOV TL0,#0B0H; MOV TH0,#3CH SETB TR0; L2: JBC TF0,L1; SJMP L2 L1: MOV TL0,#0B0H; MOV TH0,#3CH DJNZ 51H,L2; SETB P3.0; CLR P3.1 CLR P1.2; LJMP LP; ;interrupt INT0 PINT0: CLR EX0; PUSH PSW PUSH ACC JNB P3.2,LN; LN: LCALL DELAY; JNB P3.2,LN1 AJMP LN2; LN1: SETB P3.0 CLR P3.1 CLR P1.2; POP ACC POP PSW SETB EX0; LCALL LP; LN2: RETI END
时间: 2024-03-10 17:51:09 浏览: 21
以下是将汇编语言改成C51单片机语言后的代码:
```c
#include <reg51.h>
void DELAY() {
unsigned char R1, R2;
for (R1 = 0xAA; R1 > 0; R1--) {
for (R2 = 0xBB; R2 > 0; R2--) {
// do nothing
}
}
}
void main() {
TMOD = 0x01;
TH0 = 0x3C;
TL0 = 0xB0;
IE = 0x81;
P3_0 = 1;
P3_1 = 0;
P1 = 0xFF;
P2 = 0x00;
P1_2 = 0;
IT0 = 1;
SP = 0x30;
TR0 = 1;
while (1) {
while (P1_0 == 1) {
// do nothing
}
DELAY();
if (P1_0 == 1) {
P1_2 = 1;
P3_0 = !P3_0;
P3_1 = !P3_1;
TH0 = 0x3C;
TL0 = 0xB0;
for (unsigned char i = 0x14; i > 0; i--) {
while (!TF0);
TF0 = 0;
TH0 = 0x3C;
TL0 = 0xB0;
}
P3_0 = 1;
P3_1 = 0;
P1_2 = 0;
}
}
}
void PINT0() interrupt 0 {
EX0 = 0;
PSW = PSW & 0x7F;
ACC = ACC & 0x7F;
while (P3_2 == 0) {
// do nothing
}
while (P3_2 == 1) {
P3_0 = !P3_0;
P3_1 = !P3_1;
DELAY();
if (P3_2 == 0) {
P3_0 = 1;
P3_1 = 0;
P1_2 = 0;
ACC = ACC | 0x80;
PSW = PSW | 0x80;
EX0 = 1;
main();
}
}
return;
}
```