目前本人使用了sinolib.lib库函数，发现其头文件中有些不太看得懂，希望版主能解释一下。（特别是最后的对于指针的操作）
/*;***************************************************************************************
; Model : fixedpoint.h
; Description : Normal fixed point calculation.
; Author : Ma Hai Jun
; Create Time : 2009-01-01
;*****************************************************************************************/
#ifndef _FIXEDPOINT_H
#define _FIXEDPOINT_H
extern unsigned int FPM0808U(unsigned char i,unsigned char j); //Byte * Byte
extern signed int FPM0808S(signed char i,signed char j);
extern unsigned long FPM1608U(unsigned short i,unsigned char j); //Word * Byte
extern signed long FPM1608S(signed short i,signed char j);
extern unsigned long FPM1616U(unsigned short i,unsigned short j); //Word * Word
extern signed long FPM1616S(signed short i,signed short j);
extern unsigned char FPD0808U(unsigned char i,unsigned char j); //Byte / Byte
extern signed char FPD0808S(signed char i,signed char j);
extern unsigned short FPD1608U(unsigned short i,unsigned char j); //Word / Byte
extern signed short FPD1608S(signed short i,signed char j);
extern unsigned short FPD1616U(unsigned short i,unsigned short j); //Word / Word
extern signed short FPD1616S(signed short i,signed short j);
extern unsigned long FPD3208U(unsigned long i,unsigned char j); //DWord / Byte
extern signed long FPD3208S(signed long i,signed char j);
extern unsigned long FPD3216U(unsigned long i,unsigned int j); //DWord / Word
extern signed long FPD3216S(signed long i,signed int j);
extern unsigned long FPD3232U(unsigned long i,unsigned long j); //DWord / Dword
extern signed long FPD3232S(signed long i,signed long j);
extern unsigned char BCD8toHEX(unsigned char BCD); //BCD 00--99 ==> HEX 0x00--0x63.
extern unsigned int BCD16toHEX(unsigned int BCD); //BCD 00--9999==>HEX 0x00--0x270F
extern unsigned long BCD32toHEX(unsigned long BCD); //BCD 00--99999999==>HEX 0x00--0x5F5E0FF
extern unsigned int HEX8toBCD(unsigned char HEX); //HEX 0x00--0xff==>BCD 00--255
extern unsigned long HEX16toBCD(unsigned int HEX); //HEX 0x00--0xffff==>BCD 00--65535
extern unsigned long HEX32toBCD(unsigned long HEX); //HEX 0x00--0x5f5e0ff==>BCD 00--99999999
extern void BCDDec(unsigned char xdata *ArrayPtr,unsigned char ArrayLength); //BCD++
extern void BCDInc(unsigned char xdata *ArrayPtr,unsigned char ArrayLength); //BCD--
extern char xdata *memcpy_xdata(char xdata *source,char xdata *dest,unsigned char i); // copy source to dest,return dest address.
extern char data *memcpy_data(char data *source,char data *dest,unsigned char i); // copy source to dest,return dest address.
extern unsigned char getstrlen_data(char data *string);
extern unsigned char getstrlen_xdata(char xdata *string);
extern char data *memcpyfrom_ndata(char data *source,char data *dest,unsigned char from,unsigned char n); /*眖From竚秨﹍狡籹source计舱いn计沮destい*/
extern char xdata *memcpyfrom_nxdata(char xdata *source,char xdata *dest,unsigned char from,unsigned char n);
extern char data *memcpyfrom_tondata(char data *source,char data *dest,unsigned char sourcefrom,unsigned char destfrom,unsigned char n);
extern char xdata *memcpyfrom_tonxdata(char xdata *source,char xdata *dest,unsigned char sourcefrom,unsigned char destfrom,unsigned char n);
#endif |
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