STC

我初次接触STC 编译出现错：其汇编程序和错如

YLED_CMPISR:
   CLR  CMPIF   ;清CMPIF标志位
    MOV  POWER_LED,#01H  ;设置电量标志位
    MOV  CONT_LED, #01H  ;RLED,GLED均亮即黄灯亮
    SETB GREENLED
    CPL  GREENLED        ;GLED亮
    SETB REDLED
    CPL  REDLED        ;RLED亮
    CLR  EX0
    CLR  CMPEN
    SETB  EA     ;
    SETB  ELVD
    REti
RLED_LDVISR:
    CLR  LVDF   ;清LVDF标志位
    MOV  POWER_LED,#010H  ;设置电量标志位
    MOV  CONT_LED, #010H  ;RLED亮
    SETB GREENLED  ;GLED灭
    SETB REDLED
    CPL  REDLED        ;RLED亮
    CLR  CMPEN
    CLR  ELVD
    SETB  EX0     ;
    SETB  EA
    SETB  PD  ;进入掉电,然后INT0唤醒，进入软件复位
    NOP
smartcup.a51(258): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(259): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(273): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(274): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(276): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(290): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(293): error A48: DATA-ADDRESS EXPECTED
smartcup.a51(294): error A48: DATA-ADDRESS EXPECTED
smartcup.a51(295): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(296): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(298): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(303): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(306): error A48: DATA-ADDRESS EXPECTED
smartcup.a51(307): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(308): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(309): error A45: UNDEFINED SYMBOL (PASS-2)
smartcup.a51(313): error A45: UNDEFINED SYMBOL (PASS-2)
请老师指点