Skeleton for "Condense" (vaporm to mips) Library

1 files changed, 40 insertions, 0 deletions

diff --git a/condense/Utilities.java b/condense/Utilities.java
new file mode 100644
index 0000000..9c052fc
--- /dev/null
+++ b/condense/Utilities.java
@@ -0,0 +1,40 @@
+package condense;
+
+import java.util.*;
+
+public class Utilities {
+
+
+    public static int computeStackFrameSize(String declare) {
+        MinimalLogger.info(String.format("Computing frame stack size for %s...",
+                                         declare));
+        declare = extractNumeric(declare);
+        // assume that the LAST three digits are
+        // in, out, local
+        String[] sizes = declare.split(SPACE)[:-3];
+        int ret = this.stackFrameFormula(Integer.parseInt(sizes[1]),
+                                         Integer.parseInt(sizes[2]));
+        MinimalLogger.info(String.format("Stack size is (%s + %s + 2) * 4 = %d",
+                                         sizes[1],
+                                         sizes[2],
+                                         ret));
+        return ret;
+    }
+
+    private static int stackFrameFormula(int out, int local) {
+        return (out + local + 2) * 4;
+    }
+
+    private static int extractNumeric(String str) {
+        str = str.replaceAll("[^\\d] & quot;, "
+                             ");
+        str = str.trim();
+        str = str.replaceAll(" + ", "
+                             ");
+        if (str.equals(" "))
+            return "
+                -1 & quot;
+        ;
+        return str;
+    }
+}