diff --git a/src/alloy/backend/assembler.h b/src/alloy/backend/assembler.h
index 7b686ee5e..9652bee37 100644
--- a/src/alloy/backend/assembler.h
+++ b/src/alloy/backend/assembler.h
@@ -42,7 +42,8 @@ public:
 
   virtual int Assemble(
       runtime::FunctionInfo* symbol_info, hir::HIRBuilder* builder,
-      runtime::DebugInfo* debug_info, runtime::Function** out_function) = 0;
+      uint32_t debug_info_flags, runtime::DebugInfo* debug_info,
+      runtime::Function** out_function) = 0;
 
 protected:
   Backend* backend_;
diff --git a/src/alloy/backend/ivm/ivm_assembler.cc b/src/alloy/backend/ivm/ivm_assembler.cc
index 58053a950..d2b08b964 100644
--- a/src/alloy/backend/ivm/ivm_assembler.cc
+++ b/src/alloy/backend/ivm/ivm_assembler.cc
@@ -55,7 +55,8 @@ void IVMAssembler::Reset() {
 
 int IVMAssembler::Assemble(
     FunctionInfo* symbol_info, HIRBuilder* builder,
-    DebugInfo* debug_info, Function** out_function) {
+    uint32_t debug_info_flags, runtime::DebugInfo* debug_info,
+    Function** out_function) {
   IVMFunction* fn = new IVMFunction(symbol_info);
   fn->set_debug_info(debug_info);
 
diff --git a/src/alloy/backend/ivm/ivm_assembler.h b/src/alloy/backend/ivm/ivm_assembler.h
index 1a03b0fad..5da5a2412 100644
--- a/src/alloy/backend/ivm/ivm_assembler.h
+++ b/src/alloy/backend/ivm/ivm_assembler.h
@@ -31,7 +31,8 @@ public:
 
   virtual int Assemble(
       runtime::FunctionInfo* symbol_info, hir::HIRBuilder* builder,
-      runtime::DebugInfo* debug_info, runtime::Function** out_function);
+      uint32_t debug_info_flags, runtime::DebugInfo* debug_info,
+      runtime::Function** out_function);
 
 private:
   Arena     intcode_arena_;
diff --git a/src/alloy/backend/x64/x64_assembler.cc b/src/alloy/backend/x64/x64_assembler.cc
index 29290e7e8..414b1f9d6 100644
--- a/src/alloy/backend/x64/x64_assembler.cc
+++ b/src/alloy/backend/x64/x64_assembler.cc
@@ -81,7 +81,8 @@ void X64Assembler::Reset() {
 
 int X64Assembler::Assemble(
     FunctionInfo* symbol_info, HIRBuilder* hir_builder,
-    DebugInfo* debug_info, Function** out_function) {
+    uint32_t debug_info_flags, DebugInfo* debug_info,
+    Function** out_function) {
   int result = 0;
 
   // Lower HIR -> LIR.
@@ -90,7 +91,7 @@ int X64Assembler::Assemble(
   XEEXPECTZERO(result);
 
   // Stash raw LIR.
-  if (debug_info) {
+  if (debug_info_flags & DEBUG_INFO_RAW_LIR_DISASM) {
     builder_->Dump(&string_buffer_);
     debug_info->set_raw_lir_disasm(string_buffer_.ToString());
     string_buffer_.Reset();
@@ -101,7 +102,7 @@ int X64Assembler::Assemble(
   XEEXPECTZERO(result);
 
   // Stash optimized LIR.
-  if (debug_info) {
+  if (debug_info_flags & DEBUG_INFO_LIR_DISASM) {
     builder_->Dump(&string_buffer_);
     debug_info->set_lir_disasm(string_buffer_.ToString());
     string_buffer_.Reset();
@@ -114,7 +115,7 @@ int X64Assembler::Assemble(
   XEEXPECTZERO(result);
 
   // Stash generated machine code.
-  if (debug_info) {
+  if (debug_info_flags & DEBUG_INFO_MACHINE_CODE_DISASM) {
     DumpMachineCode(machine_code, code_size, &string_buffer_);
     debug_info->set_machine_code_disasm(string_buffer_.ToString());
     string_buffer_.Reset();
diff --git a/src/alloy/backend/x64/x64_assembler.h b/src/alloy/backend/x64/x64_assembler.h
index bfb8d557c..db50b6350 100644
--- a/src/alloy/backend/x64/x64_assembler.h
+++ b/src/alloy/backend/x64/x64_assembler.h
@@ -36,7 +36,8 @@ public:
 
   virtual int Assemble(
       runtime::FunctionInfo* symbol_info, hir::HIRBuilder* builder,
-      runtime::DebugInfo* debug_info, runtime::Function** out_function);
+      uint32_t debug_info_flags, runtime::DebugInfo* debug_info,
+      runtime::Function** out_function);
 
 private:
   void DumpMachineCode(void* machine_code, size_t code_size, StringBuffer* str);
diff --git a/src/alloy/frontend/frontend.h b/src/alloy/frontend/frontend.h
index 1686dbf06..c8a13b027 100644
--- a/src/alloy/frontend/frontend.h
+++ b/src/alloy/frontend/frontend.h
@@ -39,7 +39,7 @@ public:
   virtual int DeclareFunction(
       runtime::FunctionInfo* symbol_info) = 0;
   virtual int DefineFunction(
-      runtime::FunctionInfo* symbol_info, bool with_debug_info,
+      runtime::FunctionInfo* symbol_info, uint32_t debug_info_flags,
       runtime::Function** out_function) = 0;
 
 protected:
diff --git a/src/alloy/frontend/ppc/ppc_frontend.cc b/src/alloy/frontend/ppc/ppc_frontend.cc
index eb416927d..4b9bb5a3d 100644
--- a/src/alloy/frontend/ppc/ppc_frontend.cc
+++ b/src/alloy/frontend/ppc/ppc_frontend.cc
@@ -92,11 +92,11 @@ int PPCFrontend::DeclareFunction(
 }
 
 int PPCFrontend::DefineFunction(
-    FunctionInfo* symbol_info, bool with_debug_info,
+    FunctionInfo* symbol_info, uint32_t debug_info_flags,
     Function** out_function) {
   PPCTranslator* translator = translator_pool_.Allocate(this);
   int result = translator->Translate(
-      symbol_info, with_debug_info, out_function);
+      symbol_info, debug_info_flags, out_function);
   translator_pool_.Release(translator);
   return result;
 }
diff --git a/src/alloy/frontend/ppc/ppc_frontend.h b/src/alloy/frontend/ppc/ppc_frontend.h
index 14a3b31e3..612b7c1b2 100644
--- a/src/alloy/frontend/ppc/ppc_frontend.h
+++ b/src/alloy/frontend/ppc/ppc_frontend.h
@@ -32,7 +32,7 @@ public:
   virtual int DeclareFunction(
       runtime::FunctionInfo* symbol_info);
   virtual int DefineFunction(
-      runtime::FunctionInfo* symbol_info, bool with_debug_info,
+      runtime::FunctionInfo* symbol_info, uint32_t debug_info_flags,
       runtime::Function** out_function);
 
 private:
diff --git a/src/alloy/frontend/ppc/ppc_translator.cc b/src/alloy/frontend/ppc/ppc_translator.cc
index efc0b8d5d..9e02475fc 100644
--- a/src/alloy/frontend/ppc/ppc_translator.cc
+++ b/src/alloy/frontend/ppc/ppc_translator.cc
@@ -58,7 +58,7 @@ PPCTranslator::~PPCTranslator() {
 
 int PPCTranslator::Translate(
     FunctionInfo* symbol_info,
-    bool with_debug_info,
+    uint32_t debug_info_flags,
     Function** out_function) {
   // Scan the function to find its extents. We only need to do this if we
   // haven't already been provided with them from some other source.
@@ -73,20 +73,25 @@ int PPCTranslator::Translate(
   }
 
   // NOTE: we only want to do this when required, as it's expensive to build.
+  if (FLAGS_always_disasm) {
+    debug_info_flags |= DEBUG_INFO_ALL_DISASM;
+  }
   DebugInfo* debug_info = NULL;
-  if (FLAGS_always_disasm || with_debug_info) {
+  if (debug_info_flags) {
     debug_info = new DebugInfo();
   }
 
   // Stash source.
-  if (debug_info) {
+  if (debug_info_flags & DEBUG_INFO_SOURCE_DISASM) {
     DumpSource(symbol_info, &string_buffer_);
     debug_info->set_source_disasm(string_buffer_.ToString());
     string_buffer_.Reset();
 
-    DumpSourceJson(symbol_info, &string_buffer_);
-    debug_info->set_source_json(string_buffer_.ToString());
-    string_buffer_.Reset();
+    if (debug_info_flags & DEBUG_INFO_JSON) {
+      DumpSourceJson(symbol_info, &string_buffer_);
+      debug_info->set_source_json(string_buffer_.ToString());
+      string_buffer_.Reset();
+    }
   }
 
   // Emit function.
@@ -94,7 +99,7 @@ int PPCTranslator::Translate(
   XEEXPECTZERO(result);
 
   // Stash raw HIR.
-  if (debug_info) {
+  if (debug_info_flags & DEBUG_INFO_RAW_HIR_DISASM) {
     builder_->Dump(&string_buffer_);
     debug_info->set_raw_hir_disasm(string_buffer_.ToString());
     string_buffer_.Reset();
@@ -105,14 +110,17 @@ int PPCTranslator::Translate(
   XEEXPECTZERO(result);
 
   // Stash optimized HIR.
-  if (debug_info) {
+  if (debug_info_flags & DEBUG_INFO_HIR_DISASM) {
     builder_->Dump(&string_buffer_);
     debug_info->set_hir_disasm(string_buffer_.ToString());
     string_buffer_.Reset();
   }
 
   // Assemble to backend machine code.
-  result = assembler_->Assemble(symbol_info, builder_, debug_info, out_function);
+  result = assembler_->Assemble(
+      symbol_info, builder_,
+      debug_info_flags, debug_info,
+      out_function);
   XEEXPECTZERO(result);
 
   result = 0;
diff --git a/src/alloy/frontend/ppc/ppc_translator.h b/src/alloy/frontend/ppc/ppc_translator.h
index 83bfce152..deda74313 100644
--- a/src/alloy/frontend/ppc/ppc_translator.h
+++ b/src/alloy/frontend/ppc/ppc_translator.h
@@ -31,7 +31,7 @@ public:
   ~PPCTranslator();
 
   int Translate(runtime::FunctionInfo* symbol_info,
-                bool with_debug_info,
+                uint32_t debug_info_flags,
                 runtime::Function** out_function);
 
 private:
diff --git a/src/alloy/runtime/debug_info.h b/src/alloy/runtime/debug_info.h
index 46131d029..b51ceefec 100644
--- a/src/alloy/runtime/debug_info.h
+++ b/src/alloy/runtime/debug_info.h
@@ -17,6 +17,22 @@ namespace alloy {
 namespace runtime {
 
 
+enum DebugInfoFlags {
+  DEBUG_INFO_NONE                 = 0,
+
+  DEBUG_INFO_SOURCE_DISASM        = (1 << 1),
+  DEBUG_INFO_RAW_HIR_DISASM       = (1 << 2),
+  DEBUG_INFO_HIR_DISASM           = (1 << 3),
+  DEBUG_INFO_RAW_LIR_DISASM       = (1 << 4),
+  DEBUG_INFO_LIR_DISASM           = (1 << 5),
+  DEBUG_INFO_MACHINE_CODE_DISASM  = (1 << 6),
+
+  DEBUG_INFO_ALL_DISASM           = 0xFFFF,
+
+  DEBUG_INFO_JSON                 = (1 << 16),
+};
+
+
 class DebugInfo {
 public:
   DebugInfo();
diff --git a/src/alloy/runtime/runtime.cc b/src/alloy/runtime/runtime.cc
index 2cda2c6f8..95e27a2d2 100644
--- a/src/alloy/runtime/runtime.cc
+++ b/src/alloy/runtime/runtime.cc
@@ -250,7 +250,7 @@ int Runtime::DemandFunction(
   if (symbol_status == SymbolInfo::STATUS_NEW) {
     // Symbol is undefined, so define now.
     Function* function = NULL;
-    int result = frontend_->DefineFunction(symbol_info, false, &function);
+    int result = frontend_->DefineFunction(symbol_info, DEBUG_INFO_NONE, &function);
     if (result) {
       symbol_info->set_status(SymbolInfo::STATUS_FAILED);
       return result;
diff --git a/src/xenia/cpu/processor.cc b/src/xenia/cpu/processor.cc
index b292a9e14..281a33c07 100644
--- a/src/xenia/cpu/processor.cc
+++ b/src/xenia/cpu/processor.cc
@@ -662,7 +662,8 @@ json_t* Processor::DumpFunction(uint64_t address, bool& succeeded) {
   // If we ever wanted absolute x64 addresses/etc we could
   // use the x64 from the function in the symbol table.
   Function* fn;
-  if (runtime_->frontend()->DefineFunction(info, true, &fn)) {
+  if (runtime_->frontend()->DefineFunction(
+      info, DEBUG_INFO_ALL_DISASM | DEBUG_INFO_JSON, &fn)) {
     succeeded = false;
     return json_string("Unable to resolve function");
   }