updates

build/panel_button_trace.md

@@ -15,6 +15,16 @@ The key table is the indirect handler table at `H'2706`, used by `loc_1C0E` afte
 - Current-level tests: F6D4.3
 - State writes: E80E
 
+### IRIS/M.BLACK LINK
+
+- Emitted selector: `0x0013`
+- Handler: `H'200E`
+- Edge source: `F006 -> F6DB` via `F6F3.3`
+- Trigger bit: `F6DB.7`
+- Table slot: `H'27C4` -> `H'200E`
+- Current-level tests: F6DB.7
+- State writes: E826
+
 ### CALL
 
 - Emitted selector: `0x0015`