165:         unsigned char *pport, *pbuf; 
   166:         unsigned int i; 
   167:         for (i = 256, pport = &FIO_PIN[3], pbuf = buf; i--; ) 
0x00000610  E3A09C01  MOV       R9,#0x00000100
0x00000614  E59F73BC  LDR       R7,[PC,#0x03BC]
0x00000618  E28D8000  ADD       R8,R13,#0x00000000
0x0000061C  EA000001  B         0x00000628
   168:             *pport = *pbuf++; 
   169:  
0x00000620  E4D80001  LDRB      R0,[R8],#0x0001
0x00000624  E5C70000  STRB      R0,[R7]
0x00000628  E1B00009  MOVS      R0,R9
0x0000062C  E2499001  SUB       R9,R9,#0x00000001
0x00000630  1AFFFFFA  BNE       0x00000620