console.c

来自「MP3 Player Source Code」· C语言 代码 · 共 60 行

#include "board.h"
#include "console.h"

/**\file console.c
 * Console function implementations.
 */ 

/** hexadecimal character set */
extern code const unsigned char lcd_hexchars[17];


/** Write a Code Constant string to console */
void ConsoleWrite(char code *str){
  while (*str)
    {
      ConsolePutChar (*str++);
    }
}

/** Print a 16-bit hex value on Console */
void ConsolePutHex16 (unsigned int value){
  ConsolePutChar(lcd_hexchars[value>>12]);
  ConsolePutChar(lcd_hexchars[(value>>8)&0xf]);
  ConsolePutChar(lcd_hexchars[(value>>4)&0xf]);
  ConsolePutChar(lcd_hexchars[(value)&0xf]);
}


/** Print an 8-bit hex value on Console */
void ConsolePutHex8 (unsigned char value){

  ConsolePutChar(lcd_hexchars[(value>>4)&0xf]);
  ConsolePutChar(lcd_hexchars[(value)&0xf]);
}

/** Print a 16-bit unsigned integer value on Console */
void ConsolePutUInt(unsigned long value){
  xdata unsigned char valueString[10];
  char c;
  for (c=0; c<10; c++){
    valueString[c]=value % 10;
    value = value / 10;
  }
  c=9;
  while ((valueString[c]==0) && (c!=0))
    c--;
  for (;c!=0;c--)
    ConsolePutChar('0'+valueString[c]);
  ConsolePutChar('0'+valueString[0]);
  ConsolePutChar(' ');

}