From 3aebefa92757992276d91043086f5b9e50e449ca Mon Sep 17 00:00:00 2001
From: bd-912 <bdunahu@colostate.edu>
Date: Tue, 7 May 2024 14:54:53 -0600
Subject: Partial Condense.VBuiltIn support

---
 condense/CondenseVisitor.java | 65 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/condense/CondenseVisitor.java b/condense/CondenseVisitor.java
index a35699f..b296f4c 100644
--- a/condense/CondenseVisitor.java
+++ b/condense/CondenseVisitor.java
@@ -105,6 +105,18 @@ public class CondenseVisitor extends VInstr.Visitor<RuntimeException>{
         return sort;
     }
 
+    public static boolean isNumeric(String strNum) {
+        if (strNum == null) {
+            return false;
+        }
+        try {
+            double d = Double.parseDouble(strNum);
+        } catch (NumberFormatException nfe) {
+            return false;
+        }
+        return true;
+    }
+
     public void visit(VAssign n) throws RuntimeException {
         MinimalLogger.info(String.format("->%s (%s)",
                                          n.getClass().getSimpleName(),
@@ -137,7 +149,49 @@ public class CondenseVisitor extends VInstr.Visitor<RuntimeException>{
                                          n.getClass().getSimpleName(),
                                          n.sourcePos.toString()));
         ///////////////////////////////////////////////////////////////
+        // treat the arguments (place all in temp registers)
+
+        String[] ts = new String[] { "$t9", "$v1"};
+        for (int i = 0; i < n.args.length; ++i) {
+            if (this.isNumeric(n.args[i].toString()))
+                this.addMIPS(String.format("  li %s %s",
+                                           ts[i],
+                                           n.args[i].toString()));
+            else
+                this.addMIPS(String.format("  move %s %s",
+                                           ts[i],
+                                           n.args[i].toString()));
+        }
 
+        String ret = "";
+        String op = ((VBuiltIn.Op) n.op).name;
+        if (op.equals("Add"))
+            ret += "  add";
+        else if (op.equals("Sub"))
+            ret += "  sub";
+        else if (op.equals("MulS"))
+            ret += "  mul";
+        else if (op.equals("Eq"))
+            ret += "NULL"; // fixme
+        else if (op.equals("Lt"))
+            ;
+        else if (op.equals("LtS"))
+            ;
+        else if (op.equals("PrintIntS"))
+            ;
+        else if (op.equals("HeapAllocZ"))
+            ;
+        else if (op.equals("Error"))
+            ;
+
+        if (n.dest != null)
+            ret += String.format(" %s",
+                                 ((VVarRef.Register) n.dest).ident);
+        for (int i = 0; i < n.args.length; ++i)
+            ret += String.format(" %s",
+                                 ts[i]);
+
+        this.addMIPS(ret);
         ///////////////////////////////////////////////////////////////
         MinimalLogger.info(String.format("<-%s (%s)",
                                          n.getClass().getSimpleName(),
@@ -177,7 +231,18 @@ public class CondenseVisitor extends VInstr.Visitor<RuntimeException>{
                                          n.getClass().getSimpleName(),
                                          n.sourcePos.toString()));
         ///////////////////////////////////////////////////////////////
+        String ret = "  ";
+        if (n.positive)
+            ret += "bnez ";
+        else
+            ret += "beqz ";
+
+        ret += n.value.toString()
+            + " :";
+
+        ret += n.target.ident;
 
+        this.addMIPS(ret);
         ///////////////////////////////////////////////////////////////
         MinimalLogger.info(String.format("<-%s (%s)",
                                          n.getClass().getSimpleName(),
-- 
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