Even more general cleanup (#1640)

* floats

* obj_lightblock externs

* Couple more floats

* slime floats

* undefined_syms

* Move some tools to the tools folder

* format

* Update src/overlays/actors/ovl_Bg_Dblue_Waterfall/z_bg_dblue_waterfall.c

Co-authored-by: Anghelo Carvajal <angheloalf95@gmail.com>

---------

Co-authored-by: Anghelo Carvajal <angheloalf95@gmail.com>

tools/first_diff.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+
+import argparse
+from pathlib import Path
+
+try:
+    import rabbitizer
+except ImportError:
+    print("Missing dependency rabbitizer, install it with `python3 -m pip install 'rabbitizer>=1.0.0,<2.0.0'`")
+    exit(1)
+
+try:
+    import mapfile_parser
+except ImportError:
+    print("Missing dependency mapfile_parser, install it with `python3 -m pip install 'mapfile-parser>=1.2.1,<2.0.0'`")
+    exit(1)
+
+
+def decodeInstruction(bytesDiff: bytes, mapFile: mapfile_parser.MapFile) -> str:
+    word = (bytesDiff[0] << 24) | (bytesDiff[1] << 16) | (bytesDiff[2] << 8) | (bytesDiff[3] << 0)
+    instr = rabbitizer.Instruction(word)
+    immOverride = None
+
+    if instr.isJumpWithAddress():
+        # Instruction is a function call (jal)
+
+        # Get the embedded address of the function call
+        symAddress = instr.getInstrIndexAsVram()
+
+        # Search for the address in the mapfile
+        symInfo = mapFile.findSymbolByVramOrVrom(symAddress)
+        if symInfo is not None:
+            # Use the symbol from the mapfile instead of a raw value
+            immOverride = symInfo.symbol.name
+
+    return instr.disassemble(immOverride=immOverride, extraLJust=-20)
+
+def firstDiffMain():
+    parser = argparse.ArgumentParser(description="Find the first difference(s) between the built ROM and the base ROM.")
+
+    parser.add_argument("-c", "--count", type=int, default=5, help="find up to this many instruction difference(s)")
+    parser.add_argument("-v", "--version", help="Which version should be processed", default="n64-us")
+    parser.add_argument("-a", "--add-colons", action='store_true', help="Add colon between bytes" )
+
+    args = parser.parse_args()
+
+    buildFolder = Path(f"build/{args.version}")
+
+    BUILTROM = buildFolder / f"mm-{args.version}.z64"
+    BUILTMAP = buildFolder / f"mm-{args.version}.map"
+
+    EXPECTEDROM = Path(f"baseroms/{args.version}/baserom-decompressed.z64")
+    EXPECTEDMAP = "expected" / BUILTMAP
+
+    mapfile_parser.frontends.first_diff.doFirstDiff(BUILTMAP, EXPECTEDMAP, BUILTROM, EXPECTEDROM, args.count, mismatchSize=True, addColons=args.add_colons, bytesConverterCallback=decodeInstruction)
+
+if __name__ == "__main__":
+    firstDiffMain()