BVI: Bit-wise Operations

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Quick Tutorial Bit-wise Operations |
To perform logical operations, bvi has a set of bit-level commands. The following commands are available:
:rl n | rotate left | n is a number from 1 through 7
:rr n | rotate right
:sr n | shift right
:sl n | shift left
:and i | and operation | i is a number from 0 through 255
:or i | or operation
:xor i | or operation
:not | negates operation
:neg | negates operation
The i value can be entered as a decimal number (0 - 255), a hexadecimal number with a leading zero (0 - 0ff) or a binary number, either with a leading B (B101) or exactly eight digits long (00000101). On default the whole file is affected, but you can use the usual colon command address forms. In contrast to vi the addresses designate not line numbers but byte numbers. These addresses can be enterd in decimal or hexadecimal notation. Examples: `:100,500and 01A` RETURN `:03FA,01000or 00001000` RETURN `:.rr 3` RETURN `:'a,$sl 1` RETURN Back to the top Last update: Thu Jun 01 12:00:00 CEST 2000 by Gerhard Bürgmann