Difference between revisions of "K65 Evaluator"
From KK's Wiki
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=== Evaluator operators === | === Evaluator operators === | ||
Available operators and their precedence levels are similar to [[wikipedia:Operators_in_C_and_C++#Operator_precedence|operators in C and C++]] | Available operators and their precedence levels are similar to [[wikipedia:Operators_in_C_and_C++#Operator_precedence|operators in C and C++]] | ||
| − | {| class="wikitable | + | {| class="wikitable" |
|- | |- | ||
! style="text-align: left" | Precedence | ! style="text-align: left" | Precedence | ||
| Line 13: | Line 13: | ||
! rowspan=5| 2 | ! rowspan=5| 2 | ||
<small>highest</small> | <small>highest</small> | ||
| − | | style="border-bottom-style: none" | <code>++</code> | + | | style="border-bottom-style: none; text-align: center" | <code>++</code> |
| style="border-bottom-style: none" | Suffix increment | | style="border-bottom-style: none" | Suffix increment | ||
| style="vertical-align: top" rowspan="5" | Left-to-right | | style="vertical-align: top" rowspan="5" | Left-to-right | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>--</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>--</code> |
| style="border-bottom-style: none; border-top-style: none" | Suffix decrement | | style="border-bottom-style: none; border-top-style: none" | Suffix decrement | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>()</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>()</code> |
| style="border-bottom-style: none; border-top-style: none" | Function call | | style="border-bottom-style: none; border-top-style: none" | Function call | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>[]</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>[]</code> |
| style="border-bottom-style: none; border-top-style: none" | Array subscripting | | style="border-bottom-style: none; border-top-style: none" | Array subscripting | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>.</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>.</code> |
| style="border-bottom-style: none; border-top-style: none" | Single argument function call | | style="border-bottom-style: none; border-top-style: none" | Single argument function call | ||
|- | |- | ||
! rowspan=6| 3 | ! rowspan=6| 3 | ||
| − | | style="border-bottom-style: none" | <code>++</code> | + | | style="border-bottom-style: none; text-align: center" | <code>++</code> |
| style="border-bottom-style: none" | Prefix increment | | style="border-bottom-style: none" | Prefix increment | ||
| style="vertical-align: top" rowspan="6" | Right-to-left | | style="vertical-align: top" rowspan="6" | Right-to-left | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>--</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>--</code> |
| style="border-bottom-style: none; border-top-style: none" | Prefix decrement | | style="border-bottom-style: none; border-top-style: none" | Prefix decrement | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>+</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>+</code> |
| style="border-bottom-style: none; border-top-style: none" | Unary plus | | style="border-bottom-style: none; border-top-style: none" | Unary plus | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>-</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>-</code> |
| style="border-bottom-style: none; border-top-style: none" | Unary minus | | style="border-bottom-style: none; border-top-style: none" | Unary minus | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>!</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>!</code> |
| style="border-bottom-style: none; border-top-style: none" | Logical NOT | | style="border-bottom-style: none; border-top-style: none" | Logical NOT | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>~</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>~</code> |
| style="border-bottom-style: none; border-top-style: none" | Bitwise NOT (One's Complement) | | style="border-bottom-style: none; border-top-style: none" | Bitwise NOT (One's Complement) | ||
|- | |- | ||
! rowspan=3| 5 | ! rowspan=3| 5 | ||
| − | | style="border-bottom-style: none" | <code>*</code> | + | | style="border-bottom-style: none; text-align: center" | <code>*</code> |
| style="border-bottom-style: none" | Multiplication | | style="border-bottom-style: none" | Multiplication | ||
| style="vertical-align: top" rowspan="3" | Left-to-right | | style="vertical-align: top" rowspan="3" | Left-to-right | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>/</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>/</code> |
| style="border-bottom-style: none; border-top-style: none" | Division | | style="border-bottom-style: none; border-top-style: none" | Division | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>%</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>%</code> |
| style="border-bottom-style: none; border-top-style: none" | Modulo (remainder) | | style="border-bottom-style: none; border-top-style: none" | Modulo (remainder) | ||
|- | |- | ||
! rowspan=2| 6 | ! rowspan=2| 6 | ||
| − | | style="border-bottom-style: none" | <code>+</code> | + | | style="border-bottom-style: none; text-align: center" | <code>+</code> |
| style="border-bottom-style: none" | Addition | | style="border-bottom-style: none" | Addition | ||
| style="vertical-align: top" rowspan="2" | Left-to-right | | style="vertical-align: top" rowspan="2" | Left-to-right | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>-</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>-</code> |
| style="border-bottom-style: none; border-top-style: none" | Subtraction | | style="border-bottom-style: none; border-top-style: none" | Subtraction | ||
|- | |- | ||
! rowspan=2| 7 | ! rowspan=2| 7 | ||
| − | | style="border-bottom-style: none" | <code><<</code> | + | | style="border-bottom-style: none; text-align: center" | <code><<</code> |
| style="border-bottom-style: none" | Bitwise left shift | | style="border-bottom-style: none" | Bitwise left shift | ||
| style="vertical-align: top" rowspan="2" | Left-to-right | | style="vertical-align: top" rowspan="2" | Left-to-right | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>>></code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>>></code> |
| style="border-bottom-style: none; border-top-style: none" | Bitwise right shift | | style="border-bottom-style: none; border-top-style: none" | Bitwise right shift | ||
|- | |- | ||
! rowspan=6| 8 | ! rowspan=6| 8 | ||
| − | | style="border-bottom-style: none" | <code><</code> | + | | style="border-bottom-style: none; text-align: center" | <code><</code> |
| style="border-bottom-style: none" | Less than | | style="border-bottom-style: none" | Less than | ||
| style="vertical-align: top" rowspan="6" | Left-to-right | | style="vertical-align: top" rowspan="6" | Left-to-right | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code><=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code><=</code> |
| style="border-bottom-style: none; border-top-style: none" | Less than or equal to | | style="border-bottom-style: none; border-top-style: none" | Less than or equal to | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>></code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>></code> |
| style="border-bottom-style: none; border-top-style: none" | Greater than | | style="border-bottom-style: none; border-top-style: none" | Greater than | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>>=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>>=</code> |
| style="border-bottom-style: none; border-top-style: none" | Greater than or equal to | | style="border-bottom-style: none; border-top-style: none" | Greater than or equal to | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>?></code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>?></code> |
| style="border-bottom-style: none; border-top-style: none" | Select greater value (maximum) | | style="border-bottom-style: none; border-top-style: none" | Select greater value (maximum) | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>?<</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>?<</code> |
| style="border-bottom-style: none; border-top-style: none" | Select smaller value (minimum) | | style="border-bottom-style: none; border-top-style: none" | Select smaller value (minimum) | ||
|- | |- | ||
! rowspan=2| 9 | ! rowspan=2| 9 | ||
| − | | style="border-bottom-style: none" | <code>==</code> | + | | style="border-bottom-style: none; text-align: center" | <code>==</code> |
| style="border-bottom-style: none" | Equal to | | style="border-bottom-style: none" | Equal to | ||
| style="vertical-align: top" rowspan="2" | Left-to-right | | style="vertical-align: top" rowspan="2" | Left-to-right | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>!=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>!=</code> |
| style="border-bottom-style: none; border-top-style: none" | Not equal to | | style="border-bottom-style: none; border-top-style: none" | Not equal to | ||
|- | |- | ||
! 10 | ! 10 | ||
| − | | <code>&</code> | + | | style="text-align: center" |<code>&</code> |
| Bitwise AND | | Bitwise AND | ||
| Left-to-right | | Left-to-right | ||
|- | |- | ||
! 11 | ! 11 | ||
| − | | <code>^</code> | + | | style="text-align: center" |<code>^</code> |
| Bitwise XOR (exclusive or) | | Bitwise XOR (exclusive or) | ||
| Left-to-right | | Left-to-right | ||
|- | |- | ||
! 12 | ! 12 | ||
| − | | <code><nowiki>|</nowiki></code> | + | | style="text-align: center" |<code><nowiki>|</nowiki></code> |
| Bitwise OR (inclusive or) | | Bitwise OR (inclusive or) | ||
| Left-to-right | | Left-to-right | ||
|- | |- | ||
! 13 | ! 13 | ||
| − | | <code>&&</code> | + | | style="text-align: center" |<code>&&</code> |
| Logical AND | | Logical AND | ||
| Left-to-right | | Left-to-right | ||
|- | |- | ||
! 14 | ! 14 | ||
| − | | <code><nowiki>||</nowiki></code> | + | | style="text-align: center" |<code><nowiki>||</nowiki></code> |
| Logical OR | | Logical OR | ||
| Left-to-right | | Left-to-right | ||
|- | |- | ||
! 15 | ! 15 | ||
| − | | style="border-bottom-style: none" | <code>?:</code> | + | | style="border-bottom-style: none; text-align: center" | <code>?:</code> |
| style="border-bottom-style: none" | Ternary conditional | | style="border-bottom-style: none" | Ternary conditional | ||
| Right-to-left | | Right-to-left | ||
|- | |- | ||
! rowspan=11| 16 | ! rowspan=11| 16 | ||
| − | | style="border-bottom-style: none" | <code>=</code> | + | | style="border-bottom-style: none; text-align: center" | <code>=</code> |
| style="border-bottom-style: none" | Direct assignment | | style="border-bottom-style: none" | Direct assignment | ||
| style="vertical-align: top" rowspan="11" | Right-to-left | | style="vertical-align: top" rowspan="11" | Right-to-left | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>+=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>+=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by sum | | style="border-bottom-style: none; border-top-style: none" | Assignment by sum | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>-=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>-=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by difference | | style="border-bottom-style: none; border-top-style: none" | Assignment by difference | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>*=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>*=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by product | | style="border-bottom-style: none; border-top-style: none" | Assignment by product | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>/=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>/=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by quotient | | style="border-bottom-style: none; border-top-style: none" | Assignment by quotient | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>%=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>%=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by remainder | | style="border-bottom-style: none; border-top-style: none" | Assignment by remainder | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code><<=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code><<=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise left shift | | style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise left shift | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>>>=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>>>=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise right shift | | style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise right shift | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>&=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>&=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise AND | | style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise AND | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code>^=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code>^=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise XOR | | style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise XOR | ||
|- | |- | ||
| − | | style="border-bottom-style: none; border-top-style: none" | <code><nowiki>|</nowiki>=</code> | + | | style="border-bottom-style: none; border-top-style: none; text-align: center" | <code><nowiki>|</nowiki>=</code> |
| style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise OR | | style="border-bottom-style: none; border-top-style: none" | Assignment by bitwise OR | ||
|- | |- | ||
! 18 | ! 18 | ||
<small>lowest</small> | <small>lowest</small> | ||
| − | | <code>,</code> | + | | style="text-align: center" |<code>,</code> |
| Expression list (executes in sequence, returns value of the last) | | Expression list (executes in sequence, returns value of the last) | ||
| Left-to-right | | Left-to-right | ||
|} | |} | ||
Revision as of 00:19, 20 December 2014
Evaluator in K65 is compile-time executed expression language very similar to C/C++ expressions.
Evaluator operators
Available operators and their precedence levels are similar to operators in C and C++
| Precedence | Operator | Description | Associativity |
|---|---|---|---|
| 2
highest |
++
|
Suffix increment | Left-to-right |
--
|
Suffix decrement | ||
()
|
Function call | ||
[]
|
Array subscripting | ||
.
|
Single argument function call | ||
| 3 | ++
|
Prefix increment | Right-to-left |
--
|
Prefix decrement | ||
+
|
Unary plus | ||
-
|
Unary minus | ||
!
|
Logical NOT | ||
~
|
Bitwise NOT (One's Complement) | ||
| 5 | *
|
Multiplication | Left-to-right |
/
|
Division | ||
%
|
Modulo (remainder) | ||
| 6 | +
|
Addition | Left-to-right |
-
|
Subtraction | ||
| 7 | <<
|
Bitwise left shift | Left-to-right |
>>
|
Bitwise right shift | ||
| 8 | <
|
Less than | Left-to-right |
<=
|
Less than or equal to | ||
>
|
Greater than | ||
>=
|
Greater than or equal to | ||
?>
|
Select greater value (maximum) | ||
?<
|
Select smaller value (minimum) | ||
| 9 | ==
|
Equal to | Left-to-right |
!=
|
Not equal to | ||
| 10 | &
|
Bitwise AND | Left-to-right |
| 11 | ^
|
Bitwise XOR (exclusive or) | Left-to-right |
| 12 | |
|
Bitwise OR (inclusive or) | Left-to-right |
| 13 | &&
|
Logical AND | Left-to-right |
| 14 | ||
|
Logical OR | Left-to-right |
| 15 | ?:
|
Ternary conditional | Right-to-left |
| 16 | =
|
Direct assignment | Right-to-left |
+=
|
Assignment by sum | ||
-=
|
Assignment by difference | ||
*=
|
Assignment by product | ||
/=
|
Assignment by quotient | ||
%=
|
Assignment by remainder | ||
<<=
|
Assignment by bitwise left shift | ||
>>=
|
Assignment by bitwise right shift | ||
&=
|
Assignment by bitwise AND | ||
^=
|
Assignment by bitwise XOR | ||
|=
|
Assignment by bitwise OR | ||
| 18
lowest |
,
|
Expression list (executes in sequence, returns value of the last) | Left-to-right |
