1 files changed, 67 insertions, 0 deletions
diff --git a/addmapper.py b/addmapper.py
new file mode 100755
index 0000000..8848e87
--- /dev/null
+++ b/addmapper.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+import sys
+
+def generate_mapper_files(mapper_id, submapper_id=0):
+    # Format: submapper (1 hex digit) + mapper_id (3 hex digits, zero-padded)
+    full_id = f"{submapper_id:01x}{int(mapper_id):03x}"
+    filename = f"mapper_{full_id}"
+
+    # Generate C file content
+    c_content = f"""
+
+static void {filename}_init(struct nes_state *state) {{
+}}
+
+static uint8_t {filename}_prg_read(struct nes_state *state, uint32_t addr) {{
+}}
+
+static void {filename}_prg_write(struct nes_state *state, uint32_t addr, uint8_t value) {{
+}}
+
+static uint8_t {filename}_chr_read(struct nes_state *state, uint32_t addr) {{
+}}
+
+static void {filename}_chr_write(struct nes_state *state, uint32_t addr, uint8_t value) {{
+}}
+
+static uint8_t {filename}_ciram_read(struct nes_state *state, uint32_t addr) {{
+}}
+
+static void {filename}_ciram_write(struct nes_state *state, uint32_t addr, uint8_t value) {{
+}}
+
+static void {filename}_tick(struct nes_state *state) {{
+}}
+"""
+
+    # Generate H file content
+    h_content = f"""
+
+struct {filename} {{
+}};
+"""
+
+    # Generate table entry
+    table_entry = f"""	{{ 0x{int(mapper_id):x}, {filename}_prg_read, {filename}_prg_write, {filename}_chr_read, {filename}_chr_write, {filename}_ciram_read, {filename}_ciram_write, {filename}_tick, {filename}_init }},"""
+
+    # Write files
+    with open(f"{filename}.c", "w") as f:
+        f.write(c_content)
+
+    with open(f"{filename}.h", "w") as f:
+        f.write(h_content)
+
+    print(f"Generated files: {filename}.c, {filename}.h")
+    print("\nTable entry (copy-paste this into your mapper table):")
+    print(table_entry)
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("Usage: python newmapper.py <mapper_id> [submapper_id=0]")
+        print("Example: python newmapper.py 123 0  # Creates mapper_0123.*")
+        sys.exit(1)
+
+    mapper_id = sys.argv[1]
+    submapper_id = int(sys.argv[2]) if len(sys.argv) > 2 else 0
+    generate_mapper_files(mapper_id, submapper_id)
+