Release 2024-01-22

CHANGELOG.markdown

@@ -2,7 +2,7 @@
 
 All notable changes to this project will be documented in this file.
 
-## Unreleased
+## 2024-01-22
 
 ### Added
 
@@ -12,14 +12,14 @@ All notable changes to this project will be documented in this file.
 * Added support for the [`effect` instruction](doc/syntax/FUNCTIONS_V7A.markdown#instruction-effect).
 * Added more capabilities to the
   [Expression Optimization](doc/syntax/SYNTAX-6-OPTIMIZATIONS.markdown#expression-optimization): 
-  * Replacing `@this.x` and `@this.y` expressions by `@thisx`/`@thisy` built-in constants.
-  * Replacing `@constant.id` expressions by an integer value of the ID assigned to the `@constant`, assuming it is a
-    known item, liquid, block type or unit type. This optimization is only active on `aggresive` optimization level. 
+  * Replacing `@this.x` and `@this.y` expressions by the `@thisx`/`@thisy` built-in constants.
+  * Replacing `@constant.id` expressions by an integer value of the ID assigned to the `@constant`, assuming it is 
+    a known item, liquid, block type or unit type. This optimization is only active on `aggresive` optimization level. 
     For example, `id = @graphite.id` gets compiled down to `set id 3`, allowing further optimizations on the 
     constant value (`3`) to take place. 
-  * Replacing multiplication by literal zero with setting the target variable to a zero directly, and replacing 
-    multiplication/division and addition/subtraction of a zero with setting the target variable to the other operand 
-    directly.  
+  * Replacing multiplication by literal zero by an instruction setting the target variable to a zero directly, and 
+    replacing multiplication/division by one and addition/subtraction of zero by an instruction setting the target 
+    variable to the other operand directly.  
 
 ## 2024-01-19
 

README.markdown

@@ -15,6 +15,7 @@ The main focus of Mindcode design is two-fold:
 
 Some of the latest enhancements to Mindcode are:
 
+* All instructions added in Mindustry 7 build 146 are now supported.  
 * A number of powerful code optimizations:
   [Data Flow Optimization](doc/syntax/SYNTAX-6-OPTIMIZATIONS.markdown#data-flow-optimization),
   [Loop Unrolling](doc/syntax/SYNTAX-6-OPTIMIZATIONS.markdown#loop-unrolling),

ROADMAP.markdown

@@ -14,10 +14,14 @@ This documents servers as a scratch pad to track ideas and possible enhancements
 
 # Incremental improvements
 
-* Expand Data FLow Optimization to handle multiplication by zero, multiplication/division by one, and 
-  addition/subtraction of zero directly. 
+* Expand handling of expressions by the Data Flow Optimization:
+  * handle multiplication by zero, multiplication/division by one, and addition/subtraction of zero directly (i.e. 
+    independently of the Expression Optimization).
+  * When there are two subsequent MUL/DIV or ADD/SUB instructions, the first one not being used by any other 
+    instruction and the second one containing a constant, move the constant to the first instruction. Would facilitate 
+    constant folding for more complex expressions.
+  * Add factoring-out capability to more complex expressions.
 * Utilizing the new `id` property:
-  * Add built-in constants to the documentation, ensure uniform terminology. 
   * Schemacode
     * replace the `Item` and `Liquid` enums with metadata, possibly utilize units).
   * Mindcode

doc/syntax/SYNTAX-6-OPTIMIZATIONS.markdown

@@ -117,6 +117,9 @@ optimizations are available:
 * `sensor var @this @x` and `sensor var @this @y` are replaced by `set var @thisx` and `set var @thisy` respectively.
   Data Flow Optimization can then apply [constant propagation](#constant-propagation) to the `@thisx`/`@thisy` 
   built-in constants.
+* Multiplication by literal zero is replaced by a `set` instruction setting the target variable to a zero.
+* Multiplication/division by one and addition/subtraction of zero are replaced by a `set` instruction setting the 
+  target variable to the other operand.  
 * All set instructions assigning a variable to itself (e.g. `set x x`) are removed.
 
 If the optimization level is `aggressive`, the following additional expressions are handled:

mindcode/src/test/java/info/teksol/mindcode/compiler/functions/StandardFunctionsTest.java

@@ -174,4 +174,14 @@ void generatesNewPathfind() {
                 createInstruction(END)
         );
     }
+
+    @Test
+    void generatesNewAutoPathfind() {
+        assertCompilesTo("""
+                        autoPathfind()
+                        """,
+                createInstruction(UCONTROL, "autoPathfind"),
+                createInstruction(END)
+        );
+    }
 }

webapp/src/main/resources/templates/common.ftlh

@@ -42,7 +42,7 @@
 <#macro footer>
 <footer class="mt-8 text-xs text-center border border-t-2 border-l-0 border-r-0 border-b-0 border-gray-700">
     <div class="mt-4 flex justify-between">
-        <div><strong>2024-01-19</strong></div>
+        <div><strong>2024-01-22</strong></div>
         <div><strong>PRIVACY POLICY</strong>: This website does not track its users. The Mindcode and schematics you submit for compilation is kept for later analysis.
             No other information is kept about you or your actions on the site.</div>
         <div>Created by François (<a class="underline text-blue-500" href="https://github.com/francois">GitHub</a>,