Subroutine e55c

e55c dc 3b       ldd (0x003B) ; RPM
e55e 93 1d       subd (0x001D)
e560 2a 05       bpl [0xE567]
e562 43          coma
e563 53          comb
e564 c3 00 01    addd 0x0001
e567 dd 68       std (0x0068)		Branch Target from e560
e569 4d          tsta
e56a 26 06       bne [0xE572]
e56c 17          tba
e56d b1 c0 3c    cmpa (0xC03C)
e570 23 03       bls [0xE575]
e572 b6 c0 3c    ldaa (0xC03C)		Branch Target from e56a
e575 97 6a       staa (0x006A)		Branch Target from e570
e577 b0 c0 3d    suba (0xC03D)
e57a 97 6b       staa (0x006B)
e57c d6 c0       ldab (0x00C0)
e57e 96 66       ldaa (0x0066)
e580 81 02       cmpa 0x02
e582 26 1d       bne [0xE5A1]
e584 96 18       ldaa (0x0018) ; Vehicle_Speed
e586 44          lsra
e587 bb c0 3e    adda (0xC03E)
e58a 24 02       bcc [0xE58E]
e58c 86 ff       ldaa 0xFF
e58e 91 6a       cmpa (0x006A)		Branch Target from e58a
e590 22 0f       bhi [0xE5A1]
e592 de 6c       ldx (0x006C)
e594 8c 48 44    cpx 0x4844
e597 23 08       bls [0xE5A1]
e599 12 11 80 04 brset (0x0011), 0x80, [0xE5A1] ; DiffLock_Fuse
e59d 13 3a 10 02 brclr (0x003A), 0x10, [0xE5A3]
e5a1 c6 ff       ldab 0xFF		Branch Target from e582, e590, e597, e599
e5a3 d7 c0       stab (0x00C0)		Branch Target from e59d
e5a5 26 03       bne [0xE5AA]
e5a7 14 57 40    bset (0x0057), 0x40
e5aa 39          rts		Branch Target from e5a5