Event Jump
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# ROUTINE: Event jump
# Handles a jump (forward or backward) in an event.
# Parameters:
# r4 = (limitByteOffset) Event byte offset to treat as the limit (beginning limit if forward jumping, ending limit if backward jumping)
# r5 = (jumpTargetCommandID) ID of the Jump Target command to search for (Backwards jump if this parameter value is 0xd5, BackTarget)
# r6 = (secondaryJumpTargetCommandID) Secondary Jump Target command ID to search for (if doing a forward jump)
# r7 = (jumpTargetID) Jump Target ID specified for this jump instruction (parameter value)
# Parameter list for calls to this routine, based on event command:
# (currentEventByteOffset is stored in $fp (r30), and jumpTargetID is stored in $s2 (r18), in the Event Instruction routine that calls this one)
# {D0}: (currentEventByteOffset + 2, 0xd2, 0xd4, jumpTargetID)
# {D1}: (currentEventByteOffset + 2, 0xd2, -1, jumpTargetID)
# {D3}: (currentEventByteOffset, 0xd5, -1, jumpTargetID)
80149d6c: 27bdffe0 addiu r29,r29,-0x0020
80149d70: afbf0018 sw r31,0x0018(r29)
80149d74: 340200d5 ori r2,r0,0x00d5
80149d78: 14a20027 bne r5,r2,0x80149e18
80149d7c: 2409ffff addiu r9,r0,-0x0001 # targetByteOffset = -1
# if (jumpTargetCommandID == 0xd5) { // If searching for BackTarget (0xd5), search from the beginning of the event forward
80149d80: 18800021 blez r4,0x80149e08
80149d84: 00001821 addu r3,r0,r0 # eventByteOffset = 0
# if (limitByteOffset > 0) {
80149d88: 3c068017 lui r6,0x8017
80149d8c: 8cc63ca4 lw r6,0x3ca4(r6) # baseEventPtr
80149d90: 340b00d9 ori r11,r0,0x00d9
80149d94: 340a00d2 ori r10,r0,0x00d2
80149d98: 00c31021 addu r2,r6,r3 # eventCommandPtr = baseEventPtr + eventByteOffset
# do {
80149d9c: 90480000 lbu r8,0x0000(r2) # eventCommandByte = *eventCommandPtr
80149da0: 00000000 nop
80149da4: 110b0007 beq r8,r11,0x80149dc4 # if ((eventCommandByte == 0xd9)
80149da8: 00000000 nop
80149dac: 150a0007 bne r8,r10,0x80149dcc # || ((eventCommandByte == 0xd2)
80149db0: 00000000 nop
80149db4: 90420001 lbu r2,0x0001(r2)
80149db8: 00000000 nop
80149dbc: 14470003 bne r2,r7,0x80149dcc # && (*(eventCommandPtr + 1) == jumpTargetID)))
80149dc0: 00000000 nop # {
80149dc4: 0805277a j 0x80149de8
80149dc8: 2409ffff addiu r9,r0,-0x0001 # targetByteOffset = -1
# } else {
80149dcc: 15050006 bne r8,r5,0x80149de8 # if ((eventCommandPtr == jumpTargetCommandID)
80149dd0: 00c31021 addu r2,r6,r3
80149dd4: 90420001 lbu r2,0x0001(r2)
80149dd8: 00000000 nop
80149ddc: 14470002 bne r2,r7,0x80149de8 # && (*(eventCommandPtr + 1) == jumpTargetID)) {
80149de0: 00000000 nop
80149de4: 00604821 addu r9,r3,r0 # targetByteOffset = eventByteOffset
# }
# }
80149de8: 3c018015 lui r1,0x8015
80149dec: 00280821 addu r1,r1,r8
80149df0: 9022d170 lbu r2,-0x2e90(r1) # eventParamByteLength[commandByte]
80149df4: 24630001 addiu r3,r3,0x0001 # eventByteOffset = eventByteOffset + 1
80149df8: 00621821 addu r3,r3,r2 # eventByteOffset = eventByteOffset + eventParamByteLength[commandByte]
80149dfc: 0064102a slt r2,r3,r4
80149e00: 1440ffe6 bne r2,r0,0x80149d9c
80149e04: 00c31021 addu r2,r6,r3 # eventCommandPtr = baseEventPtr + eventByteOffset
# } while (eventByteOffset < limitByteOffset);
# }
80149e08: 05200026 bltz r9,0x80149ea4 # if (targetByteOffset < 0) { Stop Current Thread (); return; }
80149e0c: 25220002 addiu r2,r9,0x0002
80149e10: 080527ab j 0x80149eac # return targetByteOffset + 2;
80149e14: 00000000 nop # }
80149e18: 3c098017 lui r9,0x8017
80149e1c: 8d293ca4 lw r9,0x3ca4(r9) # baseEventPtr
80149e20: 00000000 nop # eventByteOffset = limitByteOffset
80149e24: 01241021 addu r2,r9,r4 # eventCommandPtr = baseEventPtr + eventByteOffset
80149e28: 90480000 lbu r8,0x0000(r2) # eventCommandByte = *eventCommandPtr
80149e2c: 340200db ori r2,r0,0x00db
80149e30: 1102001c beq r8,r2,0x80149ea4 # if (eventCommandByte != 0xdb) { // If not EventEnd
80149e34: 240cffff addiu r12,r0,-0x0001
80149e38: 01205021 addu r10,r9,r0 # baseEventPtr
80149e3c: 340b00db ori r11,r0,0x00db
# do {
80149e40: 15050005 bne r8,r5,0x80149e58
80149e44: 01241021 addu r2,r9,r4 # eventCommandPtr
# if ((eventCommandByte == jumpTargetCommandID)
80149e48: 90420001 lbu r2,0x0001(r2)
80149e4c: 00000000 nop
80149e50: 10470016 beq r2,r7,0x80149eac # && (*(eventCommandPtr + 1) == jumpTargetID))
80149e54: 24820002 addiu r2,r4,0x0002 # return eventByteOffset + 2;
80149e58: 10cc0007 beq r6,r12,0x80149e78
80149e5c: 24830001 addiu r3,r4,0x0001 # eventByteOffset + 1
# if ((p3 != -1)
80149e60: 15060005 bne r8,r6,0x80149e78 # && (eventCommandByte == p3)
80149e64: 01441021 addu r2,r10,r4
80149e68: 90420001 lbu r2,0x0001(r2)
80149e6c: 00000000 nop
80149e70: 1047000e beq r2,r7,0x80149eac # && (*(eventCommandPtr + 1) == jumpTargetID)) { return eventByteOffset + 2; }
80149e74: 24820002 addiu r2,r4,0x0002
80149e78: 3c018015 lui r1,0x8015
80149e7c: 00280821 addu r1,r1,r8
80149e80: 9022d170 lbu r2,-0x2e90(r1) # eventParamByteLength[commandByte]
80149e84: 3c098017 lui r9,0x8017
80149e88: 8d293ca4 lw r9,0x3ca4(r9) # baseEventPtr
80149e8c: 00622021 addu r4,r3,r2 # eventByteOffset = eventByteOffset + 1 + eventParamByteLength[commandByte]
80149e90: 01241021 addu r2,r9,r4 # eventCommandPtr = baseEventPtr + eventByteOffset
80149e94: 90480000 lbu r8,0x0000(r2) # eventCommandByte = *eventCommandPtr
80149e98: 00000000 nop
80149e9c: 150bffe8 bne r8,r11,0x80149e40
80149ea0: 00000000 nop # } while (eventCommandByte != 0xdb); // While not EventEnd
# }
80149ea4: 0c053256 jal 0x8014c958 # Stop Current Thread ();
80149ea8: 00000000 nop
80149eac: 8fbf0018 lw r31,0x0018(r29)
80149eb0: 27bd0020 addiu r29,r29,0x0020
80149eb4: 03e00008 jr r31
80149eb8: 00000000 nop
