diff --git a/CHANGELOG.text b/CHANGELOG.text
index 8e0468d..bc6b36e 100644
--- a/CHANGELOG.text
+++ b/CHANGELOG.text
@@ -1,3 +1,6 @@
+* PPCAsm utility now supported
+- added HomeResFile toolbox call.
+
 * CODE loader enhancements
 - Cleaned up CODE loader.
 - Added experimental support for far model segments
diff --git a/toolbox/rm.cpp b/toolbox/rm.cpp
index 4af6b94..e336496 100644
--- a/toolbox/rm.cpp
+++ b/toolbox/rm.cpp
@@ -937,4 +937,31 @@ namespace RM
 	}
 
 
+	uint16_t HomeResFile(uint16_t trap)
+	{
+		// PPCAsm
+
+		// FUNCTION HomeResFile (theResource: Handle): Integer;
+
+		uint32_t sp;
+		uint32_t theResource;
+		uint16_t resFile;
+
+		sp = StackFrame<4>(theResource);
+		Log("%04x HomeResFile(%08x)\n", trap, theResource);
+
+
+		auto iter = rhandle_map.find(theResource);
+		if (iter == rhandle_map.end())
+		{
+			return SetResError(MacOS::resNotFound);
+		}
+
+		resFile = ::HomeResFile(iter->second);
+
+		ToolReturn<2>(sp, resFile);
+
+		return SetResError(::ResError());
+	}
+
 }
diff --git a/toolbox/rm.h b/toolbox/rm.h
index 34ec1cd..6bc62f9 100644
--- a/toolbox/rm.h
+++ b/toolbox/rm.h
@@ -50,6 +50,9 @@ namespace RM
 
 	uint16_t GetResInfo(uint16_t trap);
 	uint16_t LoadResource(uint16_t trap);
+
+	uint16_t HomeResFile(uint16_t trap);
+
 }
 
 
diff --git a/toolbox/toolbox.cpp b/toolbox/toolbox.cpp
index e80c3f8..56e719a 100644
--- a/toolbox/toolbox.cpp
+++ b/toolbox/toolbox.cpp
@@ -377,6 +377,10 @@ namespace ToolBox {
 				d0 = RM::ReleaseResource(trap);
 				break;
 
+			case 0xa9a4:
+				d0 = RM::HomeResFile(trap);
+				break;
+
 			case 0xa9a5:
 				d0 = RM::GetResourceSizeOnDisk(trap);
 				break;