From aa9657f0b8e0547a414ae7bfde99423bbf090281 Mon Sep 17 00:00:00 2001
From: Jason Turner <jason@emptycrate.com>
Date: Thu, 8 Sep 2016 18:57:10 -0600
Subject: [PATCH] Handle retl to some extent

---
 src/main.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/main.cpp b/src/main.cpp
index 7006cb2..1e37092 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -346,7 +346,8 @@ struct i386 : ASMLine
     pushl,
     sbbb,
     negb,
-    notb
+    notb,
+    retl
   };
 
   static OpCode parse_opcode(Type t, const std::string &o)
@@ -391,6 +392,7 @@ struct i386 : ASMLine
           if (o == "negb") return OpCode::negb;
           if (o == "sbbb") return OpCode::sbbb;
           if (o == "pushl") return OpCode::pushl;
+          if (o == "retl") return OpCode::retl;
         }
     }
     throw std::runtime_error("Unknown opcode: " + o);
@@ -463,6 +465,10 @@ void translate_instruction(std::vector<mos6502> &instructions, const i386::OpCod
     case i386::OpCode::ret:
       instructions.emplace_back(mos6502::OpCode::rts);
       break;
+    case i386::OpCode::retl:
+      /// \todo I don't know if this is completely correct for retl translation
+      instructions.emplace_back(mos6502::OpCode::rts);
+      break;
     case i386::OpCode::movl:
       if (o1.type == Operand::Type::reg && o2.type == Operand::Type::reg) {
         instructions.emplace_back(mos6502::OpCode::lda, get_register(o1.reg_num));
@@ -557,6 +563,10 @@ void translate_instruction(std::vector<mos6502> &instructions, const i386::OpCod
         // ands the values
         instructions.emplace_back(mos6502::OpCode::lda, Operand(o1.type, fixup_8bit_literal(o1.value)));
         instructions.emplace_back(mos6502::OpCode::bit, get_register(o2.reg_num));
+      } else if (o1.type == Operand::Type::literal && o2.type == Operand::Type::literal) {
+        // ands the values
+        instructions.emplace_back(mos6502::OpCode::lda, Operand(o1.type, fixup_8bit_literal(o1.value)));
+        instructions.emplace_back(mos6502::OpCode::bit, o2);
       } else {
         throw std::runtime_error("Cannot translate testb instruction");
       }