1 files changed, 3 insertions, 14 deletions
diff --git a/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/x86_64_v2/NewX86.java b/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/x86_64_v2/NewX86.java
index a87074f4..e751fa23 100644
--- a/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/x86_64_v2/NewX86.java
+++ b/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/x86_64_v2/NewX86.java
@@ -6,33 +6,22 @@ import com.seaofnodes.simple.node.*;
 import com.seaofnodes.simple.type.TypeFunPtr;
 
 public class NewX86 extends NewNode implements MachNode {
-    public static final String OS  = System.getProperty("os.name");
-    public static final RegMask ARG2 = OS.startsWith("Windows")
-        ? x86_64_v2.callWin64(TypeFunPtr.CALLOC,2)
-        : x86_64_v2.callSys5 (TypeFunPtr.CALLOC,2);
-    public static final RegMask ARG3 = OS.startsWith("Windows")
-        ? x86_64_v2.callWin64(TypeFunPtr.CALLOC,3)
-        : x86_64_v2.callSys5 (TypeFunPtr.CALLOC,3);
-
     // A pre-zeroed chunk of memory.
     NewX86( NewNode nnn ) { super(nnn); }
     @Override public String op() { return "alloc"; }
     // Size and pointer result in standard calling convention; null for all the
     // memory aliases edges
-    @Override public RegMask regmap(int i) { return i==1 ? ARG2 : null; }
+    @Override public RegMask regmap(int i) { return i==1 ? x86_64_v2.callInMask(TypeFunPtr.CALLOC,2) : null; }
     @Override public RegMask outregmap(int i) { return i == 1 ? x86_64_v2.RAX_MASK : null; }
     @Override public RegMask outregmap() { return null; }
-    @Override public RegMask killmap() {
-        return OS.startsWith("Windows")
-            ? x86_64_v2.  WIN64_CALLER_SAVE_MASK
-            : x86_64_v2.SYSTEM5_CALLER_SAVE_MASK;
-    }
+    @Override public RegMask killmap() { return x86_64_v2.x86CallerSave(); }
 
     @Override public void encoding( Encoding enc ) {
         enc.external(this,"calloc");
         // This has to call the *native* ABI, regardless of how Simple is
         // being compiled, because it links against the native calloc.
         // ldi rcx,#1 // number of elements to calloc
+        RegMask ARG3 = x86_64_v2.callInMask(TypeFunPtr.CALLOC,3);
         enc.add1(0xB8 + ARG3.firstReg()).add4(1);
         // E8 cd    CALL rel32;
         enc.add1(0xE8);