diff --git a/notes/handler-tables.txt b/notes/handler-tables.txt
index 775df5c7..add72da5 100644
--- a/notes/handler-tables.txt
+++ b/notes/handler-tables.txt
@@ -488,6 +488,19 @@ SUBCMD  GCEp3NTE GCEp3USA
 6xB5x45 802D6714 802EDBE8
 6xB5x47 80234FBC 8022A314
 
+Quest opcode dispatch
+3OE0 => 801F2CE0
+3OE1 => 801F2CE0
+3OE2 => 801F2E64
+3OJ2 => 801F287C
+3OJ3 => 801F2E00
+3OJ4 => 801F3568
+3OJ5 => 801F2E10
+3OP0 => 801F33DC
+3SE0 => 80109F78
+3SJ0 => 8010A138
+3SP0 => 8010A404
+
 Quest opcode handlers (format: GET_ARGS EXEC_FUN)
       DC-NTE---------------  DC112000-------------  DCv1USA--------------  DCv2USA--------------  PC-NTE------ --------  PC-------------------  GC1&2NTE-------------  GC-GJAM--------------  GC1&2v11-------------  GC1&2v12-------------  GCEp3NTE-------------  GCEp3USA-------------  XBOXBETA-------------  XBOX-US0-------------  BB-------------------
   00  8C13C19C-()  8C13C830  8C13F83C-()  8C13FF80  8C151764-()  8C151EA8  8C16C6F0-()  8C16CE34  004E12C0-()  004E1A50  00590DD0-()  00595030  80242F44-()  80242304  801ED060-??? 801ECB70  801F2A10-()  801F2520  801F2B94-()  801F26A4  8010D308-()  8010CE18  80109CA8-()  801097B8  00218DF0-??? 002C9010  002190C0-??? 002F76A0  006B101C-()  0061CDB0  nop
diff --git a/src/QuestScript.cc b/src/QuestScript.cc
index 3618b331..6f77447c 100644
--- a/src/QuestScript.cc
+++ b/src/QuestScript.cc
@@ -2548,9 +2548,8 @@ static const QuestScriptOpcodeDefinition opcode_defs[] = {
     {0xF94C, "player_effect_nc", "particle3f_id", {{REG_SET_FIXED, 4}}, F_V3_V4},
 
     // Returns 1 in regA if a file named PSO3_CHARACTER is present on either
-    // memory card. This opcode is only available on PSO Plus on GC.
-    // TODO: This is verified to exist on US v1.2 and not on US v1.1. What
-    // about the JP versions? And EU?
+    // memory card. This opcode is only available on PSO Plus on GC; that is,
+    // it only exists on JP v1.4 and v1.5, and US v1.2.
     {0xF94D, "has_ep3_save_file", nullptr, {REG}, F_GC_V3 | F_ARGS},
 
     // Gives the player one copy of a card. regA is the card ID.