Difference between revisions of "Shell Commands/Eval"
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(Created page with "'''Eval''' - Evaluates a mathematical expression VALUE1/A, OP, VALUE2/M, TO/K, LFORMAT/K <nowiki> VALUE1 - value 1: can be decimal, hexadecimal or octal (see below)...") |
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'''Eval''' - Evaluates a mathematical expression | '''Eval''' - Evaluates a mathematical expression | ||
| − | VALUE1/A, OP, VALUE2/M, TO/K, LFORMAT/K | + | VALUE1/A, OP, VALUE2/M, TO/K, LFORMAT/K, HEX/S |
<nowiki> | <nowiki> | ||
VALUE1 - value 1: can be decimal, hexadecimal or octal (see below) | VALUE1 - value 1: can be decimal, hexadecimal or octal (see below) | ||
| Line 7: | Line 7: | ||
VALUE2 - value 2: can be decimal, hexadecimal or octal (see below) | VALUE2 - value 2: can be decimal, hexadecimal or octal (see below) | ||
TO - filename where to redirect eval result | TO - filename where to redirect eval result | ||
| − | LFORMAT - formatting string used to print the answer (see below)</nowiki> | + | LFORMAT - formatting string used to print the answer (see below) |
| + | HEX - prints the result in hexadecimals</nowiki> | ||
About VALUE1 and VALUE2: | About VALUE1 and VALUE2: | ||
Latest revision as of 13:17, 5 January 2016
Eval - Evaluates a mathematical expression
VALUE1/A, OP, VALUE2/M, TO/K, LFORMAT/K, HEX/S
VALUE1 - value 1: can be decimal, hexadecimal or octal (see below) OP - a supported operator (see below) VALUE2 - value 2: can be decimal, hexadecimal or octal (see below) TO - filename where to redirect eval result LFORMAT - formatting string used to print the answer (see below) HEX - prints the result in hexadecimals
About VALUE1 and VALUE2:
- Hexadecimal numbers are indicated by either a leading Ox or #x.
- Octal numbers are indicated by either a leading 0 or a leading #.
- Alphabetical characters are indicated by a leading single quotation mark (`) and are evaluated as their ASCII equivalent.
The LFORMAT keyword specifies the formatting string used to print the answer. You can use %X (hexadecimal), %O (octal), %N (decimal), or %C (character). The %X and %O options require a number of digits using the LFORMAT keyword, you can specify to print a new line by including *N in your string.
Supported Operations:
addition +
subtraction -
multiplication *
division /
modulo mod, M, m, or %
bitwise AND &
bitwise OR |
bitwise NOT ~
left shift Ish, L, or |
right shift rsh, R, or r
negation -
exclusive OR xor, X, or x
bitwise eqv, E, or e
equivalence
Example: SYS:> EVAL 0x5f / 010 LFORMAT="The answer is %X4*N"
The answer is 000B
SYS:>