Subroutine f310

f310 4f          clra
f311 ce c0 00    ldx 0xC000 ; ROM ID
f314 5f          clrb		Branch Target from f321
f315 ab 00       adda (X+0x00)		Branch Target from f31b
f317 08          inx
f318 27 09       beq [0xF323]
f31a 5c          incb
f31b 26 f8       bne [0xF315]
f31d c6 ff       ldab 0xFF
f31f d7 c6       stab (0x00C6)
f321 20 f1       bra [0xF314]
f323 4d          tsta		Branch Target from f318
f324 27 00       beq [0xF326]
f326 39          rts		Branch Target from f324