diff --git a/tools/configure.py b/tools/configure.py
index df13abd1..d9e1016a 100755
--- a/tools/configure.py
+++ b/tools/configure.py
@@ -172,6 +172,9 @@ class Project:
     def arm9_o(self) -> Path:
         return self.game_build / "arm9.o"
 
+    def arm9_disassembly_dir(self) -> Path:
+        return self.game_build / "asm"
+
     def objdiff_report(self) -> Path:
         return self.game_build / "report.json"
 
@@ -227,6 +230,12 @@ def main():
         )
         n.newline()
 
+        n.rule(
+            name="disassemble",
+            command=f"{DSD} {DSD_BASE_FLAGS} dis --config-path $config_path --asm-path $output_path --ual"
+        )
+        n.newline()
+
         # -MMD excludes all includes instead of just system includes for some reason, so use -MD instead.
         mwcc_cmd = f'{WINE} "{CC}" {CC_FLAGS} {CC_INCLUDES} $cc_flags -d $game_version -MD -c $in -o $basedir'
         mwcc_implicit = [CC]
@@ -312,12 +321,15 @@ def main():
         add_download_tool_builds(n, project)
         add_extract_build(n, project)
         add_delink_and_lcf_builds(n, project)
+        add_disassemble_builds(n, project)
         add_mwcc_builds(n, project, mwcc_implicit)
         add_mwld_and_rom_builds(n, project)
         add_check_builds(n, project)
         add_objdiff_builds(n, project)
         add_configure_build(n, project)
 
+        n.default(["objdiff", "check", "sha1"])
+
 
 def add_download_tool_builds(n: ninja_syntax.Writer, project: Project):
     if args.dsd is None:
@@ -541,6 +553,20 @@ def add_delink_and_lcf_builds(n: ninja_syntax.Writer, project: Project):
     n.newline()
 
 
+def add_disassemble_builds(n: ninja_syntax.Writer, project: Project):
+    n.build(
+        inputs=project.dsd_configs(),
+        implicit=DSD,
+        rule="disassemble",
+        outputs="dis",
+        variables={
+            "config_path": str(project.arm9_config_yaml()),
+            "output_path": str(project.arm9_disassembly_dir()),
+        }
+    )
+    n.newline()
+
+
 def add_check_builds(n: ninja_syntax.Writer, project: Project):
     n.build(
         inputs=str(project.arm9_o()),