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标题: PICC中混合ASM语言,为何indf的使用出现非法字符提示 [打印本页]

作者: winnie 时间: 2009-4-15 11:10
标题: PICC中混合ASM语言,为何indf的使用出现非法字符提示
#asm
BCF _STATUS,5
   BTFSC _RCSTA,1
   BCF _RCSTA,4
   BSF _RCSTA,4
   NOP
   BTFSS _PIR1,5
   GOTO RERETURN
   MOVF _RCREG,w
   MOVWF _RS232RCORTX
   DECF  _RS232RCORTX
   DECFSZ _RS232RCORTX
   GOTO RERETURN
   MOVF _count,w
   MOVWF _TXREG
   BTFSS _PIR1,4
   GOTO $-1
   MOVF _INDF,w
   MOVWF _TXREG
   INCF _FSR
TXWAIT BTFSS _PIR1,4
   GOTO TXWAIT
   DECFSZ _count
   GOTO RERETURN
   MOVLW 0X08
   MOVWF _count
   MOVLW 0X56
   MOVWF _FSR
RERETURN NOP
#endasm
它提示的错误是:
Error[000] E:\pc cos.c 151 : undefined symbol _INDF
Halting build on first failure as requested.
BUILD FAILED: Thu Sep 30 11:24:49 2004
按照PICC的语法规定,我已经在我使用的变量以及特殊寄存器前面加了_,    尤其是FSR,和INDF,为何FSR编译通过,而INDF却没有通过呢?

作者: winnie 时间: 2009-4-15 11:11
#include<pic.h>
static  unsigned char INDF @ 0x00;
unsigned char RS232RCORTX,count;
void main()
{
#asm
BCF _STATUS,5
   BTFSC _RCSTA,1
   BCF _RCSTA,4
   BSF _RCSTA,4
   NOP
   BTFSS _PIR1,5
   GOTO RERETURN
   MOVF _RCREG,w
   MOVWF _RS232RCORTX
   DECF  _RS232RCORTX
   DECFSZ _RS232RCORTX
   GOTO RERETURN
   MOVF _count,w
   MOVWF _TXREG
   BTFSS _PIR1,4
   GOTO $-1
   MOVF _INDF,w
   MOVWF _TXREG
   INCF _FSR
TXWAIT BTFSS _PIR1,4
   GOTO TXWAIT
   DECFSZ _count
   GOTO RERETURN
   MOVLW 0X08
   MOVWF _count
   MOVLW 0X56
   MOVWF _FSR
RERETURN NOP
#endasm
}
Compiler operating Executing: "C:\HT-PIC\BIN\PICC.EXE" -E"ASS.lde" "D:\TEST\aasm.obj" -O"ASS.cof" -O"ASS.hex" -Q -MPLAB -16F73
CRACK BY CJYCJY
Compiler operating
Memory Usage Map:

Program ROM $0000 - $0011  $0012 ( 18) words
Program ROM $07E2 - $07FF  $001E ( 30) words
                           $0030 ( 48) words total Program ROM

Bank 0 RAM $0020 - $0021  $0002 (    2) bytes total Bank 0 RAM

Program statistics:

Total ROM used    48 words (1.2%)
Total RAM used       2 bytes (1.0%)

Loaded D:\TEST\ASS.cof
BUILD SUCCEEDED: Sat Oct 09 12:34:56 2004

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