2 files changed, 2 insertions, 2 deletions
diff --git a/chapter21/src/main/java/com/seaofnodes/simple/codegen/RegAlloc.java b/chapter21/src/main/java/com/seaofnodes/simple/codegen/RegAlloc.java
index 3a99c097..bd4cbf35 100644
--- a/chapter21/src/main/java/com/seaofnodes/simple/codegen/RegAlloc.java
+++ b/chapter21/src/main/java/com/seaofnodes/simple/codegen/RegAlloc.java
@@ -288,7 +288,7 @@ public class RegAlloc {
         // all registers anyways.
         if( rclass._len <= 1 || ncalls > 1 ) return false;
 
-        // Split by classh
+        // Split by class
         Ary<Node> ns = new Ary<>(Node.class);
         for( RegMask rmask : rclass ) {
             ns.addAll(def._outputs);
diff --git a/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/CallRISC.java b/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/CallRISC.java
index ae9cdcd9..7a0f3313 100644
--- a/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/CallRISC.java
+++ b/chapter21/src/main/java/com/seaofnodes/simple/node/cpus/riscv/CallRISC.java
@@ -21,7 +21,7 @@ public class CallRISC extends CallNode implements MachNode, RIPRelSize {
     @Override public RegMask regmap(int i) {
         return riscv.callInMask(_tfp,i,fun()._maxArgSlot);
     }
-    @Override public RegMask outregmap() { return null; }
+    @Override public RegMask outregmap() { return riscv.RPC_MASK; }
     @Override public String name() { return _name; }
     @Override public TypeFunPtr tfp() { return _tfp; }