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- #include<stdio.h>
- #include<reg52.h>
- void main()
- {
- int bit1, z=0;;
- SCON = 0x50;
- TMOD |= 0x20;
- TH1 = 0xFA;
- TR1 = 1;
- TI = 1;
- PCON |= 0x80;
- printf("enter bit to set ? \n ");
- scanf("%d", &bit1);
- z = z | (1 << bit1);
- printf("z=%x \n", z);
- }