Codes for Computers and Microprocessors by P. E. Gosling

By P. E. Gosling

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12,5,8. 12' 6' 8. I 2, 7, 8. 12. J K ~I r-; 0 p Q R 12 '7. I2,8. 12,9. 11,1. ' 2. 11 '3. 11 '4. I I, 5. 1 I, 6. 1! '7. 11,8. 11 '9. 0,2. ). 0,4. 0,5. 0,6. 1\ X y I 11 ,5,8. 11 ,4 '8. 12,6,8. 0,3,8. 11. 12,3,8. 0' 1. 0. 1. 2. 3. 4. 5. 6. 7. 8. 9. 2,8. 11 '6' 8. 12,4,8. 6,8. 0,6,8. 0,7,8. 4,8. 12' 1. 12' 2. 12' 3. 12 '4. I 2, 5. 12,6. s T 11 '2' 8. 11' 3' 8. 11,4' 8. 11 ,5,8. 11 ,6, 8. 11 '7' 8. 11. 0' 1. ASCII Punch Code [ \ l 0,7. 0,8. 0,9. 12' 2 '8. 0,2,8. 11 '2 ,8. ll '7' 8 53 Summary of EBCDIC and ASCII Codes Binary Code 01101001 01101010 01101011 01101100 01101101 01101110 01101111 01110000 01110001 01110010 01110011 01110100 01110101 01110110 01110111 01111000 01111001 01111010 01111011 01111100 01111101 01111110 01111111 10000000 10000001 10000010 10000011 10000100 10000101 10000110 10000111 10001000 10001001 10001010 10001011 10001100 10001101 1000111 0 10001111 10010000 10010001 10010010 10010011 10010100 10010101 10010110 10010111 10011000 10011001 10011010 10011011 10011100 10011101 10011110 10011111 10100000 10100001 10100010 10100011 10100100 10100101 10100110 10100111 10101000 Decimal Equiv.

1! '7. 11,8. 11 '9. 0,2. ). 0,4. 0,5. 0,6. 1\ X y I 11 ,5,8. 11 ,4 '8. 12,6,8. 0,3,8. 11. 12,3,8. 0' 1. 0. 1. 2. 3. 4. 5. 6. 7. 8. 9. 2,8. 11 '6' 8. 12,4,8. 6,8. 0,6,8. 0,7,8. 4,8. 12' 1. 12' 2. 12' 3. 12 '4. I 2, 5. 12,6. s T 11 '2' 8. 11' 3' 8. 11,4' 8. 11 ,5,8. 11 ,6, 8. 11 '7' 8. 11. 0' 1. ASCII Punch Code [ \ l 0,7. 0,8. 0,9. 12' 2 '8. 0,2,8. 11 '2 ,8. ll '7' 8 53 Summary of EBCDIC and ASCII Codes Binary Code 01101001 01101010 01101011 01101100 01101101 01101110 01101111 01110000 01110001 01110010 01110011 01110100 01110101 01110110 01110111 01111000 01111001 01111010 01111011 01111100 01111101 01111110 01111111 10000000 10000001 10000010 10000011 10000100 10000101 10000110 10000111 10001000 10001001 10001010 10001011 10001100 10001101 1000111 0 10001111 10010000 10010001 10010010 10010011 10010100 10010101 10010110 10010111 10011000 10011001 10011010 10011011 10011100 10011101 10011110 10011111 10100000 10100001 10100010 10100011 10100100 10100101 10100110 10100111 10101000 Decimal Equiv.

The process continues until the division is complete. This is known as the restoring method for division. Example (I) 1216/26 Contents of register 1 greater than contents of accumulator. Left shift. :. Double-length word Register 1 Accumulator Register 2 0011010 0010011 0000000 0100110 0000000 22 (2) (3) (4) (5) (6) (7) Codes for Computers and Microprocessors Contents of register 1 less than contents of accumulator. Subtract 0011010 from accumulator. :. Double-length word Left shift. :. Double-length word Contents of register 1 greater than contents of accumulator.

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