Support double/float calculation.

php-java · m3m0r7 · Mar 4, 2019 · Mar 3, 2019 · Mar 4, 2019 · Mar 4, 2019
commit b18cb170b693df15e6e8ad3d20af85094077bcde
diff --git a/README.md b/README.md
@@ -23,7 +23,6 @@ Sorry, I do not have enough time (T_T)
 
 - Implements
 - Event
-- double/float calculation.
 - Many built-in libraries (ex. java.lang.xxx, java.io.xxx and so on) 
 - etc...
 

diff --git a/composer.json b/composer.json
@@ -3,7 +3,7 @@
     "description": "JVM emulator by PHP",
     "type": "library",
     "license": "MIT",
-    "version": "0.0.4.2-dev",
+    "version": "0.0.4.5-dev",
     "authors": [
         {
             "name": "memory"

diff --git a/src/Kernel/Structures/_Float.php b/src/Kernel/Structures/_Float.php
@@ -16,6 +16,6 @@ public function execute(): void
     }
     public function getBytes()
     {
-        return $this->bytes;
+        return BinaryTool::convertFloatToIEEE754($this->bytes);
     }
 }
diff --git a/src/Utilities/BinaryTool.php b/src/Utilities/BinaryTool.php
@@ -205,4 +205,13 @@ final public static function convertDoubleToIEEE754($doubleValue, $rounded = 8)
             (($bits & 0xfffffffffffff) << 1) : ($bits & 0xfffffffffffff) | 0x10000000000000;
         return $s * $m * pow(2, $e - 1075);
     }
+
+    final public static function convertFloatToIEEE754($floatValue, $rounded = 8)
+    {
+        $bits = $floatValue;
+        $s = ($bits >> 31) == 0 ? 1 : -1;
+        $e = ($bits >> 23) & 0xff;
+        $m = ($e == 0) ? ($bits & 0x7fffff) << 1 : ($bits & 0x7fffff) | 0x800000;;
+        return $s * $m * pow(2, $e - 150);
+    }
 }
-Original file line number
+Diff line change
@@ Expand Up / @@ -23,7 +23,6 @@ Sorry, I do not have enough time (T_T) @@
     - Implements
     - Event
-    - double/float calculation.
     - Many built-in libraries (ex. java.lang.xxx, java.io.xxx and so on)
     - etc...
@@ Expand Down @@