checkpoint

1 files changed, 57 insertions, 0 deletions

diff --git a/src/code/reference_decoder/sim86_text_table.cpp b/src/code/reference_decoder/sim86_text_table.cpp
new file mode 100644
index 0000000..e90a649
--- /dev/null
+++ b/src/code/reference_decoder/sim86_text_table.cpp
@@ -0,0 +1,57 @@
+/* ========================================================================
+
+   (C) Copyright 2023 by Molly Rocket, Inc., All Rights Reserved.
+   
+   This software is provided 'as-is', without any express or implied
+   warranty. In no event will the authors be held liable for any damages
+   arising from the use of this software.
+   
+   Please see https://computerenhance.com for more information
+   
+   ======================================================================== */
+
+char const *OpcodeMnemonics[] =
+{
+    "",
+    
+#define INST(Mnemonic, ...) #Mnemonic,
+#define INSTALT(...)
+#include "sim86_instruction_table.inl"
+};
+
+static char const *GetMnemonic(operation_type Op)
+{
+    char const *Result = "";
+    if(Op < Op_Count)
+    {
+        Result = OpcodeMnemonics[Op];
+    }
+    
+    return Result;
+}
+
+static char const *GetRegName(register_access Reg)
+{
+    char const *Names[][3] =
+    {
+        {"", "", ""},
+        {"al", "ah", "ax"},
+        {"bl", "bh", "bx"},
+        {"cl", "ch", "cx"},
+        {"dl", "dh", "dx"},
+        {"sp", "sp", "sp"},
+        {"bp", "bp", "bp"},
+        {"si", "si", "si"},
+        {"di", "di", "di"},
+        {"es", "es", "es"},
+        {"cs", "cs", "cs"},
+        {"ss", "ss", "ss"},
+        {"ds", "ds", "ds"},
+        {"ip", "ip", "ip"},
+        {"flags", "flags", "flags"},
+        {"", "", ""}
+    };
+    
+    char const *Result = Names[Reg.Index % ArrayCount(Names)][(Reg.Count == 2) ? 2 : Reg.Offset&1];
+    return Result;
+}