Wait Value Event Instruction

#   ROUTINE: WaitValue event instruction
#       Parameters:
#           r4 = (params) Event instruction parameters

8014a3f8: 27bdffe0 addiu r29,r29,-0x0020
8014a3fc: afb00010 sw r16,0x0010(r29)
8014a400: 00808021 addu r16,r4,r0                   #   paramPtr
8014a404: afbf0018 sw r31,0x0018(r29)
8014a408: 0c05181e jal 0x80146078                   #   variableID = Load Halfword (paramPtr);
8014a40c: afb10014 sw r17,0x0014(r29)
8014a410: 26040002 addiu r4,r16,0x0002              #   paramPtr + 2
8014a414: 00021400 sll r2,r2,0x10
8014a418: 0c05181e jal 0x80146078                   #   testValue = Load Halfword (paramPtr + 2);
8014a41c: 00028c03 sra r17,r2,0x10
8014a420: 00021400 sll r2,r2,0x10
8014a424: 00028403 sra r16,r2,0x10                  #   testValue
                                                    #   do {
8014a428: 0c04ed64 jal 0x8013b590                   #       variableValue = Get Script Variable (value);
8014a42c: 02202021 addu r4,r17,r0
8014a430: 0050102a slt r2,r2,r16
8014a434: 10400005 beq r2,r0,0x8014a44c             #       if (variableValue >= testValue)
8014a438: 00000000 nop                              #           break;
8014a43c: 0c0532a0 jal 0x8014ca80                   #       Switch To Next Thread ();
8014a440: 00000000 nop
8014a444: 0805290a j 0x8014a428                     
8014a448: 00000000 nop                              #   } while (true);     // Loop repeats infinitely until break
8014a44c: 8fbf0018 lw r31,0x0018(r29)
8014a450: 8fb10014 lw r17,0x0014(r29)
8014a454: 8fb00010 lw r16,0x0010(r29)
8014a458: 27bd0020 addiu r29,r29,0x0020
8014a45c: 03e00008 jr r31
8014a460: 00000000 nop