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Assembly language 2

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Binary conversion
Binary to Decimal
Binary to Hexadecimal
Binary to Octal
Decimal conversion
Decimal to Binary
Decimal to octal

Octal to binary
Octal to Decimal
Hex conversion
Hex o Binary

Publicada em: Dispositivos e hardware
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Assembly language 2

  1. 1. Assembly language PPT (2) Number system
  2. 2. Introduction • In last PPT it ended up with 4 types of number system . • In this PPT we are going to see in depth with conversions .
  3. 3. Binary conversion • Binary to Decimal • 1. Start at the rightmost bit. • 2. Take that bit and multiply by 2n where n is the current position beginning at 0 and increasing by 1 each time. This represents a power of two. • 3. Sum each terms product until all bits have been used.
  4. 4. • Binary number example : - 1001 convert to decimal 1 * 23 + 0 * 22 + 0 * 21 + 1 * 20 8 + 0 + 0 + 1 8+0+0+1 = (9)10 Ans :- Decimal value = (9) 10
  5. 5. Binary to Hexadecimal • Hex, or hexadecimal, is a number system of base 16
  6. 6. • Binary to hex Conversion Example • Compare the above to table • For example :- binary 1100 = C in hex 1011 = B 0001 = 1 for greater then 4 digits in binary 1)example :- 11001011 2)example :- 101010 make group of 4 digits :- make group of 4 digits :- 1100 1011 Ans :- CB 10 1010 Ans :-2A C B 2 A
  7. 7. Binary to Octal • The octal system is again a power of two (23)
  8. 8. • Binary to Octal Conversion Example • Compare the above to table • For example :- binary 100 = 4 in Octal 011 = 3 001 = 1 for greater then 4 digits in binary 1)example :- 11001011 2)example :- 101010 make group of 3 digits :- make group of 3 digits :- 11 001 011 Ans :- 313 101 010 Ans :-52 3 1 3 5 2
  9. 9. Decimal conversion Decimal to Binary • 1. Divide the decimal number by 2. • 2. Take the remainder and record it on the side. • 3. REPEAT UNTIL the decimal number cannot be divided into anymore. • 4. With the bits, record them in order from right to left as that will be the number in base two.
  10. 10. • Example • 8 / 2 = 4 0 4 / 2 = 2 0 2 / 2 = 1 0 1 / 2 = 0 1 • Answer: (1000)2
  11. 11. • Decimal to octal Its similar to Decimal to binary conversion instead of 2 have to divide it by 8 Example :- (18)10 18 / 8 = 2 2 2 / 8 = 0 2 Answer : - (22)8
  12. 12. Octal conversion • Octal to binary • Simply separate the number and individually find the binary digit , for Example • number (742)8 • 7 | 4 | 2 • 111 | 100 | 010 • Answer: (111100010)2
  13. 13. • Octal to Decimal • Similar to the binary to decimal method, simply take each digit in the octal base and multiply by the power of 8 • Example :- (764)8 • 7 * 82 + 6 * 81 + 4 * 80 448 + 48 + 4 = 500 Answer: (500)10
  14. 14. Hex conversions • Hex o Binary • This conversion is very simple given the hexadecimal compare the table and find the answer
  15. 15. • Example • hexadecimal number (A2F)16 Convert to binary A | 2 | F 1010 | 0010 | 1111 Answer: (1010 0010 1111)2

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