Difference between revisions of "Hexadecimal"
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* [http://www.freepascal.org/docs-html/rtl/strutils/hex2dec.html Hex2Dec] Converts a hexadecimal string to a decimal value. | * [http://www.freepascal.org/docs-html/rtl/strutils/hex2dec.html Hex2Dec] Converts a hexadecimal string to a decimal value. | ||
* [http://www.freepascal.org/docs-html/rtl/strutils/hextobin.html HexToBin] Convert a hexadecimal string to a binary buffer. | * [http://www.freepascal.org/docs-html/rtl/strutils/hextobin.html HexToBin] Convert a hexadecimal string to a binary buffer. | ||
| + | * [http://www.freepascal.org/docs-html/rtl/sysutils/inttohex.html IntToHex] Convert an integer value to a hexadecimal string. | ||
[[Procedure]] | [[Procedure]] | ||
* [http://www.freepascal.org/docs-html/rtl/strutils/bintohex.html BinToHex] Convert a binary buffer to a hexadecimal string. | * [http://www.freepascal.org/docs-html/rtl/strutils/bintohex.html BinToHex] Convert a binary buffer to a hexadecimal string. | ||
Revision as of 15:32, 15 June 2008
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Hexadecimal (hex) is number system to the base 16. In hexadecimal the decimal numbers 0–15 are represented by the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F. Hexadecimal numbers are easy to convert to the computer's internal binary code and are more compact than binary numbers. One hexadecimal digit stands in place of four binary bits (4-bits).
In Pascal hexadecimal is indicated by use a prefixed $
Conversion Table
| Hexadecimal | Decimal | Binary |
| $0000 | 0 | %0000000000000000 |
| $0001 | 1 | %0000000000000001 |
| $0002 | 2 | %0000000000000010 |
| $0003 | 3 | %0000000000000011 |
| $0004 | 4 | %0000000000000100 |
| $0005 | 5 | %0000000000000101 |
| $0006 | 6 | %0000000000000110 |
| $0007 | 7 | %0000000000000111 |
| $0008 | 8 | %0000000000001000 |
| $0009 | 9 | %0000000000001001 |
| $000a | 10 | %0000000000001010 |
| $000b | 11 | %0000000000001011 |
| $000c | 12 | %0000000000001100 |
| $000d | 13 | %0000000000001101 |
| $000e | 14 | %0000000000001110 |
| $000f | 15 | %0000000000001111 |
| $0010 | 16 | %0000000000010000 |
| $0011 | 17 | %0000000000010001 |
| $0012 | 18 | %0000000000010010 |
| $0013 | 19 | %0000000000010011 |
| $0014 | 20 | %0000000000010100 |
| ... | ... | ... |
| $009f | 159 | %0000000010011111 |
| $00a0 | 160 | %0000000010100000 |
| ... | ... | ... |
| $00ff | 255 | %0000000011111111 |
| $0100 | 256 | %0000000100000000 |
| $0101 | 257 | %0000000100000001 |
See also
- Hex2Dec Converts a hexadecimal string to a decimal value.
- HexToBin Convert a hexadecimal string to a binary buffer.
- IntToHex Convert an integer value to a hexadecimal string.
- BinToHex Convert a binary buffer to a hexadecimal string.
