BUNIT.OUT Get generic job index

see also: JOBSTTS.OUT Get generic job index
find: the world routine that does the same thing

001c71a8: 2482ffb6 addiu r2,r4,-0x004a           job - 4a
001c71ac: 3042ffff andi r2,r2,0xffff
001c71b0: 2c420014 sltiu r2,r2,0x0014
001c71b4: 10400003 beq r2,r0,0x001c71c4          branch if currently unique job
001c71b8: 00000000 nop
001c71bc: 08071c72 j 0x001c71c8                  if generic job, return proper index
001c71c0: 2482ffb6 addiu r2,r4,-0x004a
001c71c4: 00001021 addu r2,r0,r0                 job index = 0
001c71c8: 00021400 sll r2,r2,0x10
001c71cc: 03e00008 jr r31                        return job index of current job
001c71d0: 00021403 sra r2,r2,0x10