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--- return_of_samus:technical_information:screen_transitions [2018/07/21 04:17] – [1x - Select metatile table] liamnajor
+++ return_of_samus:technical_information:screen_transitions [2018/12/27 07:27] – Document opcode 7 quantam
@@ Line 89: / Line 89: @@
 Note: Place the x/y coordinate one screen "behind" the desired destination.
-==== 5* - Unknown ====
+==== 5* - Retreat from Last Boss ====
-Sets Samus at a specific position and redraws the status bar. Perhaps this is used in that screen transition in area 3 where you appear over some spikes. TODO: Verify.
+This opcode is used only once, when Samus retreats from the last boss fight by falling through the hole in the floor. It performs several tasks:
+  - Disable LCD interrupt, ending special last boss hblank handling
+  - Move Samus to ($78, $D7)
+  - Set the screen position to ($80, $C0)
+  - Reload the status bar into the window after the last boss had used the window for the last boss head
+  - Flag the screen for a complete update
 ==== 6* - Change acid & spike damage ====
@@ Line 106: / Line 111: @@
 For reference, the default starting values are $02 and $08.
-==== 7* - Unknown ====
+==== 7* - Exit Room After Last Boss Death ====
-Redraws the status bar and resets the window position. Perhaps used after exiting the queen fight. TODO: Verify
+This opcode is used only once, when leaving the last boss room after defeating her. It performs the following:
+  - Disable last boss flag (sets $D08B to 0)
+  - Resets the window position to (0, $88) (sets $FF4A and $FF4B to $88 and 7, respectively)
+  - Disables LCD interrupt from last boss fight
+  - Reloads the status bar into the window
 ==== 8* - Transition to the Queen Fight ====

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