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#include<reg52.h>
#define input P0 //from Master Uc
#define parallel P1
#define leone P2 //control upto 1-8 latch
#define letwo P3 //control upto 8-16 latch
#define sec 100
/*void delay(unsigned int msec) //Time delay function
{
int i,j ;
for(i=0;i<msec;i++)
for(j=0;j<1275;j++);
} */
void display(int a) // Display function
{
switch(a)
{
case 1:
parallel=0x01;
leone=0x01;
letwo=0x00;
if(input==0x00)// again given same input
parallel=0x00;
break;
case 2:
parallel=0x02;
leone=0x01;
letwo=0x00;
if(input==0x01)// again given same input
parallel=0x00;
break;
case 3:
parallel=0x04;
leone=0x01;
letwo=0x00;
if(input==0x02)// again given same input
parallel=0x00;
break;
case 4:
parallel=0x08;
leone=0x01;
letwo=0x00;
if(input==0x03)// again given same input
parallel=0x00;
break;
case 5:
parallel=0x10;
leone=0x01;
letwo=0x00;
if(input==0x04)// again given same input
parallel=0x00;
break;
case 6:
parallel=0x20;
leone=0x01;
letwo=0x00;
if(input==0x05)// again given same input
parallel=0x00;
break;
case 7:
parallel=0x40;
leone=0x01;
letwo=0x00;
if(input==0x06)// again given same input
parallel=0x00;
break;
case 8:
parallel=0x80;
leone=0x01;
letwo=0x00;
if(input==0x07)// again given same input
parallel=0x00;
break;
case 9:
parallel=0x01;
leone=0x02;
letwo=0x00;
if(input==0x08)// again given same input
parallel=0x00;
break;
case 10:
parallel=0x02;
leone=0x02;
letwo=0x00;
if(input==0x09)// again given same input
parallel=0x00;
break;
case 11:
parallel=0x04;
leone=0x02;
letwo=0x00;
if(input==0x0A)// again given same input
parallel=0x00;
break;
case 12:
parallel=0x08;
leone=0x02;
letwo=0x00;
if(input==0x0B)// again given same input
parallel=0x00;
break;
case 13:
parallel=0x10;
leone=0x02;
letwo=0x00;
if(input==0x0C)// again given same input
parallel=0x00;
break;
case 14:
parallel=0x20;
leone=0x02;
letwo=0x00;
if(input==0x0D)// again given same input
parallel=0x00;
break;
case 15:
parallel=0x40;
leone=0x02;
letwo=0x00;
if(input==0x0E)// again given same input
parallel=0x00;
break;
case 16:
parallel=0x80;
leone=0x02;
letwo=0x00;
if(input==0x0F)// again given same input
parallel=0x00;
break;
case 17:
parallel=0x01;
leone=0x04;
letwo=0x00;
if(input==0x10)// again given same input
parallel=0x00;
break;
case 18:
parallel=0x02;
leone=0x04;
letwo=0x00;
if(input==0x11)// again given same input
parallel=0x00;
break;
case 19:
parallel=0x04;
leone=0x04;
letwo=0x00;
if(input==0x12)// again given same input
parallel=0x00;
break;
case 20:
parallel=0x08;
leone=0x04;
letwo=0x00;
if(input==0x13)// again given same input
parallel=0x00;
break;
case 21:
parallel=0x10;
leone=0x04;
letwo=0x00;
if(input==0x14)// again given same input
parallel=0x00;
break;
case 22:
parallel=0x20;
leone=0x04;
letwo=0x00;
if(input==0x15)// again given same input
parallel=0x00;
break;
case 23:
parallel=0x40;
leone=0x04;
letwo=0x00;
if(input==0x16)// again given same input
parallel=0x00;
break;
case 24:
parallel=0x80;
leone=0x04;
letwo=0x00;
if(input==0x17)// again given same input
parallel=0x00;
break;
case 25:
parallel=0x01;
leone=0x08;
letwo=0x00;
if(input==0x18)// again given same input
parallel=0x00;
break;
case 26:
parallel=0x02;
leone=0x08;
letwo=0x00;
if(input==0x19)// again given same input
parallel=0x00;
break;
case 27:
parallel=0x04;
leone=0x08;
letwo=0x00;
if(input==0x1A)// again given same input
parallel=0x00;
break;
case 28:
parallel=0x08;
leone=0x08;
letwo=0x00;
if(input==0x1B)// again given same input
parallel=0x00;
break;
case 29:
parallel=0x10;
leone=0x08;
letwo=0x00;
if(input==0x1C)// again given same input
parallel=0x00;
break;
case 30:
parallel=0x20;
leone=0x08;
letwo=0x00;
if(input==0x1D)// again given same input
parallel=0x00;
break;
case 31:
parallel=0x40;
leone=0x08;
letwo=0x00;
if(input==0x1E)// again given same input
parallel=0x00;
break;
case 32:
parallel=0x80;
leone=0x08;
letwo=0x00;
if(input==0x1F)// again given same input
parallel=0x00;
break;
case 33:
parallel=0x01;
leone=0x10;
letwo=0x00;
if(input==0x20)// again given same input
parallel=0x00;
break;
case 34:
parallel=0x02;
leone=0x10;
letwo=0x00;
if(input==0x21)// again given same input
parallel=0x00;
break;
case 35:
parallel=0x04;
leone=0x10;
letwo=0x00;
if(input==0x22)// again given same input
parallel=0x00;
break;
case 36:
parallel=0x08;
leone=0x10;
letwo=0x00;
if(input==0x23)// again given same input
parallel=0x00;
break;
case 37:
parallel=0x10;
leone=0x10;
letwo=0x00;
if(input==0x24)// again given same input
parallel=0x00;
break;
case 38:
parallel=0x20;
leone=0x10;
letwo=0x00;
if(input==0x25)// again given same input
parallel=0x00;
break;
case 39:
parallel=0x40;
leone=0x10;
letwo=0x00;
if(input==0x26)// again given same input
parallel=0x00;
break;
case 40:
parallel=0x80;
leone=0x10;
letwo=0x00;
if(input==0x27)// again given same input
parallel=0x00;
break;
case 41:
parallel=0x01;
leone=0x20;
letwo=0x00;
if(input==0x28)// again given same input
parallel=0x00;
break;
case 42:
parallel=0x02;
leone=0x20;
letwo=0x00;
if(input==0x29)// again given same input
parallel=0x00;
break;
case 43:
parallel=0x04;
leone=0x20;
letwo=0x00;
if(input==0x2A)// again given same input
parallel=0x00;
break;
case 44:
parallel=0x08;
leone=0x20;
letwo=0x00;
if(input==0x2B)// again given same input
parallel=0x00;
break;
case 45:
parallel=0x10;
leone=0x20;
letwo=0x00;
if(input==0x2C)// again given same input
parallel=0x00;
break;
case 46:
parallel=0x20;
leone=0x20;
letwo=0x00;
if(input==0x2D)// again given same input
parallel=0x00;
break;
case 47:
parallel=0x40;
leone=0x20;
letwo=0x00;
if(input==0x2E)// again given same input
parallel=0x00;
break;
case 48:
parallel=0x80;
leone=0x20;
letwo=0x00;
if(input==0x2F)// again given same input
parallel=0x00;
break;
case 49:
parallel=0x01;
leone=0x40;
letwo=0x00;
if(input==0x30)// again given same input
parallel=0x00;
break;
case 50:
parallel=0x02;
leone=0x40;
letwo=0x00;
if(input==0x31)// again given same input
parallel=0x00;
break;
case 51:
parallel=0x04;
leone=0x40;
letwo=0x00;
if(input==0x32)// again given same input
parallel=0x00;
break;
case 52:
parallel=0x08;
leone=0x40;
letwo=0x00;
if(input==0x33)// again given same input
parallel=0x00;
break;
case 53:
parallel=0x10;
leone=0x40;
letwo=0x00;
if(input==0x34)// again given same input
parallel=0x00;
break;
case 54:
parallel=0x20;
leone=0x40;
letwo=0x00;
if(input==0x35)// again given same input
parallel=0x00;
break;
case 55:
parallel=0x40;
leone=0x40;
letwo=0x00;
if(input==0x36)// again given same input
parallel=0x00;
break;
case 56:
parallel=0x80;
leone=0x40;
letwo=0x00;
if(input==0x37)// again given same input
parallel=0x00;
break;
case 57:
parallel=0x01;
leone=0x80;
letwo=0x00;
if(input==0x38)// again given same input
parallel=0x00;
break;
case 58:
parallel=0x02;
leone=0x80;
letwo=0x00;
if(input==0x39)// again given same input
parallel=0x00;
break;
case 59:
parallel=0x04;
leone=0x80;
letwo=0x00;
if(input==0x3A)// again given same input
parallel=0x00;
break;
case 60:
parallel=0x08;
leone=0x80;
letwo=0x00;
if(input==0x3B)// again given same input
parallel=0x00;
break;
case 61:
parallel=0x10;
leone=0x80;
letwo=0x00;
if(input==0x3C)// again given same input
parallel=0x00;
break;
case 62:
parallel=0x20;
leone=0x80;
letwo=0x00;
if(input==0x3D)// again given same input
parallel=0x00;
break;
case 63:
parallel=0x40;
leone=0x80;
letwo=0x00;
if(input==0x3E)// again given same input
parallel=0x00;
break;
case 64:
parallel=0x80;
leone=0x80;
letwo=0x00;
if(input==0x3F)// again given same input
parallel=0x00;
break;
case 65:
parallel=0x01;
leone=0x00;
letwo=0x01;
if(input==0x40)// again given same input
parallel=0x00;
break;
case 66:
parallel=0x02;
leone=0x00;
letwo=0x01;
if(input==0x41)// again given same input
parallel=0x00;
break;
case 67:
parallel=0x04;
leone=0x00;
letwo=0x01;
if(input==0x42)// again given same input
parallel=0x00;
break;
case 68:
parallel=0x08;
leone=0x00;
letwo=0x01;
if(input==0x43)// again given same input
parallel=0x00;
break;
case 69:
parallel=0x10;
leone=0x00;
letwo=0x01;
if(input==0x44)// again given same input
parallel=0x00;
break;
case 70:
parallel=0x20;
leone=0x00;
letwo=0x01;
if(input==0x45)// again given same input
parallel=0x00;
break;
case 71:
parallel=0x40;
leone=0x00;
letwo=0x01;
if(input==0x46)// again given same input
parallel=0x00;
break;
case 72:
parallel=0x80;
leone=0x00;
letwo=0x01;
if(input==0x47)// again given same input
parallel=0x00;
break;
case 73:
parallel=0x01;
leone=0x00;
letwo=0x02;
if(input==0x48)// again given same input
parallel=0x00;
break;
case 74:
parallel=0x02;
leone=0x00;
letwo=0x02;
if(input==0x49)// again given same input
parallel=0x00;
break;
case 75:
parallel=0x04;
leone=0x00;
letwo=0x02;
if(input==0x4A)// again given same input
parallel=0x00;
break;
case 76:
parallel=0x08;
leone=0x00;
letwo=0x02;
if(input==0x4B)// again given same input
parallel=0x00;
break;
case 77:
parallel=0x10;
leone=0x00;
letwo=0x02;
if(input==0x4C)// again given same input
parallel=0x00;
break;
case 78:
parallel=0x20;
leone=0x00;
letwo=0x02;
if(input==0x4D)// again given same input
parallel=0x00;
break;
case 79:
parallel=0x40;
leone=0x00;
letwo=0x02;
if(input==0x4E)// again given same input
parallel=0x00;
break;
case 80:
parallel=0x80;
leone=0x00;
letwo=0x02;
if(input==0x4F)// again given same input
parallel=0x00;
break;
case 81:
parallel=0x01;
leone=0x00;
letwo=0x04;
if(input==0x50)// again given same input
parallel=0x00;
break;
case 82:
parallel=0x02;
leone=0x00;
letwo=0x04;
if(input==0x51)// again given same input
parallel=0x00;
break;
case 83:
parallel=0x04;
leone=0x00;
letwo=0x04;
if(input==0x52)// again given same input
parallel=0x00;
break;
case 84:
parallel=0x08;
leone=0x00;
letwo=0x04;
if(input==0x53)// again given same input
parallel=0x00;
break;
case 85:
parallel=0x10;
leone=0x00;
letwo=0x04;
if(input==0x54)// again given same input
parallel=0x00;
break;
case 86:
parallel=0x20;
leone=0x00;
letwo=0x04;
if(input==0x55)// again given same input
parallel=0x00;
break;
case 87:
parallel=0x40;
leone=0x00;
letwo=0x04;
if(input==0x56)// again given same input
parallel=0x00;
break;
case 88:
parallel=0x80;
leone=0x00;
letwo=0x04;
if(input==0x57)// again given same input
parallel=0x00;
break;
case 89:
parallel=0x01;
leone=0x00;
letwo=0x08;
if(input==0x58)// again given same input
parallel=0x00;
break;
case 90:
parallel=0x02;
leone=0x00;
letwo=0x08;
if(input==0x59)// again given same input
parallel=0x00;
break;
case 91:
parallel=0x04;
leone=0x00;
letwo=0x08;
if(input==0x5A)// again given same input
parallel=0x00;
break;
case 92:
parallel=0x08;
leone=0x00;
letwo=0x08;
if(input==0x5B)// again given same input
parallel=0x00;
break;
case 93:
parallel=0x10;
leone=0x00;
letwo=0x08;
if(input==0x5C)// again given same input
parallel=0x00;
break;
case 94:
parallel=0x20;
leone=0x00;
letwo=0x08;
if(input==0x5D)// again given same input
parallel=0x00;
break;
case 95:
parallel=0x40;
leone=0x00;
letwo=0x08;
if(input==0x5E)// again given same input
parallel=0x00;
break;
case 96:
parallel=0x80;
leone=0x00;
letwo=0x08;
if(input==0x5F)// again given same input
parallel=0x00;
break;
case 97:
parallel=0x01;
leone=0x00;
letwo=0x10;
if(input==0x60)// again given same input
parallel=0x00;
break;
case 98:
parallel=0x02;
leone=0x00;
letwo=0x10;
if(input==0x61)// again given same input
parallel=0x00;
break;
case 99:
parallel=0x04;
leone=0x00;
letwo=0x10;
if(input==0x62)// again given same input
parallel=0x00;
break;
case 100:
parallel=0x08;
leone=0x00;
letwo=0x10;
if(input==0x63)// again given same input
parallel=0x00;
break;
case 101:
parallel=0x10;
leone=0x00;
letwo=0x10;
if(input==0x64)// again given same input
parallel=0x00;
break;
case 102:
parallel=0x20;
leone=0x00;
letwo=0x10;
if(input==0x65)// again given same input
parallel=0x00;
break;
case 103:
parallel=0x40;
leone=0x00;
letwo=0x10;
if(input==0x66)// again given same input
parallel=0x00;
break;
case 104:
parallel=0x80;
leone=0x00;
letwo=0x10;
if(input==0x67)// again given same input
parallel=0x00;
break;
case 105:
parallel=0x01;
leone=0x00;
letwo=0x20;
if(input==0x68)// again given same input
parallel=0x00;
break;
case 106:
parallel=0x02;
leone=0x00;
letwo=0x20;
if(input==0x69)// again given same input
parallel=0x00;
break;
case 107:
parallel=0x04;
leone=0x00;
letwo=0x20;
if(input==0x6A)// again given same input
parallel=0x00;
break;
case 108:
parallel=0x08;
leone=0x00;
letwo=0x20;
if(input==0x6B)// again given same input
parallel=0x00;
break;
case 109:
parallel=0x10;
leone=0x00;
letwo=0x20;
if(input==0x6C)// again given same input
parallel=0x00;
break;
case 110:
parallel=0x20;
leone=0x00;
letwo=0x20;
if(input==0x6D)// again given same input
parallel=0x00;
break;
case 111:
parallel=0x40;
leone=0x00;
letwo=0x20;
if(input==0x6E)// again given same input
parallel=0x00;
break;
case 112:
parallel=0x80;
leone=0x00;
letwo=0x20;
if(input==0x6F)// again given same input
parallel=0x00;
break;
case 113:
parallel=0x01;
leone=0x00;
letwo=0x40;
if(input==0x70)// again given same input
parallel=0x00;
break;
case 114:
parallel=0x02;
leone=0x00;
letwo=0x40;
if(input==0x71)// again given same input
parallel=0x00;
break;
case 115:
parallel=0x04;
leone=0x00;
letwo=0x40;
if(input==0x72)// again given same input
parallel=0x00;
break;
case 116:
parallel=0x08;
leone=0x00;
letwo=0x40;
if(input==0x73)// again given same input
parallel=0x00;
break;
case 117:
parallel=0x10;
leone=0x00;
letwo=0x40;
if(input==0x74)// again given same input
parallel=0x00;
break;
case 118:
parallel=0x20;
leone=0x00;
letwo=0x40;
if(input==0x75)// again given same input
parallel=0x00;
break;
case 119:
parallel=0x40;
leone=0x00;
letwo=0x80;
if(input==0x76)// again given same input
parallel=0x00;
break;
case 120:
parallel=0x80;
leone=0x00;
letwo=0x80;
if(input==0x77)// again given same input
parallel=0x00;
break;
case 121:
parallel=0x01;
leone=0x00;
letwo=0x80;
if(input==0x78)// again given same input
parallel=0x00;
break;
case 122:
parallel=0x02;
leone=0x00;
letwo=0x80;
if(input==0x79)// again given same input
parallel=0x00;
break;
case 123:
parallel=0x04;
leone=0x00;
letwo=0x80;
if(input==0x7A)// again given same input
parallel=0x00;
break;
case 124:
parallel=0x08;
leone=0x00;
letwo=0x80;
if(input==0x7B)// again given same input
parallel=0x00;
break;
case 125:
parallel=0x10;
leone=0x00;
letwo=0x80;
if(input==0x7C)// again given same input
parallel=0x00;
break;
case 126:
parallel=0x20;
leone=0x00;
letwo=0x80;
if(input==0x7D)// again given same input
parallel=0x00;
break;
case 127:
parallel=0x40;
leone=0x00;
letwo=0x80;
if(input==0x7E)// again given same input
parallel=0x00;
break;
case 128:
parallel=0x80;
leone=0x00;
letwo=0x80;
if(input==0x7F)// again given same input
parallel=0x00;
break;
}
}
void main()
{
parallel=0x00;
leone=0x00;
letwo=0x00;
while(1)
{
switch(input)
{
case 0x00:
display(1);
break;
case 0x01:
display(2);
break;
case 0x02:
display(3);
break;
case 0x03:
display(4);
break;
case 0x04:
display(5);
break;
case 0x05:
display(6);
break;
case 0x06:
display(7);
break;
case 0x07:
display(8);
break;
case 0x08:
display(9);
break;
case 0x09:
display(10);
break;
case 0x0a:
display(11);
break;
case 0x0b:
display(12);
break;
case 0x0c:
display(13);
break;
case 0x0d:
display(14);
break;
case 0x0e:
display(15);
break;
case 0x0f:
display(16);
break;
case 0x10:
display(17);
break;
case 0x11:
display(18);
break;
case 0x12:
display(19);
break;
case 0x13:
display(20);
break;
case 0x14:
display(21);
break;
case 0x15:
display(22);
break;
case 0x16:
display(23);
break;
case 0x17:
display(24);
break;
case 0x18:
display(25);
break;
case 0x19:
display(26);
break;
case 0x1a:
display(27);
break;
case 0x1b:
display(28);
break;
case 0x1c:
display(29);
break;
case 0x1d:
display(30);
break;
case 0x1e:
display(31);
break;
case 0x1f:
display(32);
break;
case 0x20:
display(33);
break;
case 0x21:
display(34);
break;
case 0x22:
display(35);
break;
case 0x23:
display(36);
break;
case 0x24:
display(37);
break;
case 0x25:
display(38);
break;
case 0x26:
display(39);
break;
case 0x27:
display(40);
break;
case 0x28:
display(41);
break;
case 0x29:
display(42);
break;
case 0x2a:
display(43);
break;
case 0x2b:
display(44);
break;
case 0x2c:
display(45);
break;
case 0x2d:
display(46);
break;
case 0x2e:
display(47);
break;
case 0x2f:
display(48);
break;
case 0x30:
display(49);
break;
case 0x31:
display(50);
break;
case 0x32:
display(51);
break;
case 0x33:
display(52);
break;
case 0x34:
display(53);
break;
case 0x35:
display(54);
break;
case 0x36:
display(55);
break;
case 0x37:
display(56);
break;
case 0x38:
display(57);
break;
case 0x39:
display(58);
break;
case 0x3a:
display(59);
break;
case 0x3b:
display(60);
break;
case 0x3c:
display(61);
break;
case 0x3d:
display(62);
break;
case 0x3e:
display(63);
break;
case 0x3f:
display(64);
break;
case 0x40:
display(65);
break;
case 0x41:
display(66);
break;
case 0x42:
display(67);
break;
case 0x43:
display(68);
break;
case 0x44:
display(69);
break;
case 0x45:
display(70);
break;
case 0x46:
display(71);
break;
case 0x47:
display(72);
break;
case 0x48:
display(73);
break;
case 0x49:
display(74);
break;
case 0x4a:
display(75);
break;
case 0x4b:
display(76);
break;
case 0x4c:
display(77);
break;
case 0x4d:
display(78);
break;
case 0x4e:
display(79);
break;
case 0x4f:
display(80);
break;
case 0x50:
display(81);
break;
case 0x51:
display(82);
break;
case 0x52:
display(83);
break;
case 0x53:
display(84);
break;
case 0x54:
display(85);
break;
case 0x55:
display(86);
break;
case 0x56:
display(87);
break;
case 0x57:
display(88);
break;
case 0x58:
display(89);
break;
case 0x59:
display(90);
break;
case 0x5a:
display(91);
break;
case 0x5b:
display(92);
break;
case 0x5c:
display(93);
break;
case 0x5d:
display(94);
break;
case 0x5e:
display(95);
break;
case 0x5f:
display(96);
break;
case 0x60:
display(97);
break;
case 0x61:
display(98);
break;
case 0x62:
display(99);
break;
case 0x63:
display(100);
break;
case 0x64:
display(101);
break;
case 0x65:
display(102);
break;
case 0x66:
display(103);
break;
case 0x67:
display(104);
break;
case 0x68:
display(105);
break;
case 0x69:
display(106);
break;
case 0x6a:
display(107);
break;
case 0x6b:
display(108);
break;
case 0x6c:
display(109);
break;
case 0x6d:
display(110);
break;
case 0x6e:
display(111);
break;
case 0x6f:
display(112);
break;
case 0x70:
display(113);
break;
case 0x71:
display(114);
break;
case 0x72:
display(115);
break;
case 0x73:
display(116);
break;
case 0x74:
display(117);
break;
case 0x75:
display(118);
break;
case 0x76:
display(119);
break;
case 0x77:
display(120);
break;
case 0x78:
display(121);
break;
case 0x79:
display(122);
break;
case 0x7a:
display(123);
break;
case 0x7b:
display(124);
break;
case 0x7c:
display(125);
break;
case 0x7d:
display(126);
break;
case 0x7e:
display(127);
break;
case 0x7f:
display(128);
break;
}
}
}
case 1:
parallel=0x01;
leone=0x01;
letwo=0x00;
if(input==0x00)// again given same input
parallel=0x00;
break;
case 1:
parallel=0x01;
leone=0x01;
letwo=0x00;
if(input==0x00)// again given same input
parallel=0x00;
break;
case 1:
parallel=0x00;
leone=0x00;
letwo=0x00;
if(input==0x00)// again given same input
parallel=0x00;
break;
[CODE]
case 1:
parallel=0x01;
leone=0x01;
letwo=0x00;
break;
parallel=0x00;
leone=0x01;
letwo=0x00;
//sw1_state = 0 should be used in the beggining during initialization.
//Similarly sw2_state.... sw128_state...swN_state should be used
case 1:
sw1_state = ~sw1_state;
if(sw1_state == 1) {
parallel=0x01;
}
else if(sw1_state == 0) {
parallel = 0x00;
}
leone=0x01;
letwo=0x00;
break;