use preprocessor

1 files changed, 83 insertions, 0 deletions

diff --git a/tools/preproc/preproc.cpp b/tools/preproc/preproc.cpp
new file mode 100644
index 000000000..7fc3f5c10
--- /dev/null
+++ b/tools/preproc/preproc.cpp
@@ -0,0 +1,83 @@
+// Copyright(c) 2016 YamaArashi
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#include <stack>
+#include "preproc.h"
+#include "asm_file.h"
+#include "charmap.h"
+
+Charmap* g_charmap;
+
+int main(int argc, char **argv)
+{
+    if (argc != 3)
+    {
+        fprintf(stderr, "Usage: %s ASM_FILE CHARMAP_FILE", argv[0]);
+        return 1;
+    }
+
+    g_charmap = new Charmap(argv[2]);
+
+    std::stack<AsmFile> stack;
+
+    stack.push(AsmFile(argv[1]));
+
+    for (;;)
+    {
+        while (stack.top().IsAtEnd())
+        {
+            stack.pop();
+            
+            if (stack.empty())
+                return 0;
+            else
+                stack.top().OutputLocation();
+        }
+
+        Directive directive = stack.top().GetDirective();
+
+        switch (directive)
+        {
+        case Directive::Include:
+            stack.push(AsmFile(stack.top().ReadPath()));
+            stack.top().OutputLocation();
+            break;
+        case Directive::String:
+        {
+            unsigned char s[kMaxStringLength];
+            int length = stack.top().ReadString(s);
+
+            printf("\t.byte ");
+            for (int i = 0; i < length; i++)
+            {
+                printf("0x%02X", s[i]);
+
+                if (i < length - 1)
+                    printf(", ");
+            }
+            putchar('\n');
+            break;
+        }
+        case Directive::Unknown:
+            stack.top().OutputLine();
+            break;
+        }
+    }
+}