446 lines
8.7 KiB
C
446 lines
8.7 KiB
C
/*************
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my_printf.c
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SDK_LICENSE
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***************/
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#include "rom_sym_def.h"
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#include "types.h"
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#include <stdarg.h>
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#include <string.h>
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#include "uart.h"
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#include "log.h"
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#define ZEROPAD 1 // Pad with zero
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#define SIGN 2 // Unsigned/signed long
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#define PLUS 4 // Show plus
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#define SPACE 8 // Space if plus
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#define LEFT 16 // Left justified
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#define SPECIAL 32 // 0x
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#define LARGE 64 // Use 'ABCDEF' instead of 'abcdef'
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#define is_digit(c) ((c) >= '0' && (c) <= '9')
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static const char* digits = "0123456789abcdefghijklmnopqrstuvwxyz";
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static const char* upper_digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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static size_t _strnlen(const char* s, size_t count)
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{
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const char* sc;
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for (sc = s; *sc != '\0' && count--; ++sc);
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return sc - s;
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}
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static int skip_atoi(const char** s)
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{
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int i = 0;
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while (is_digit(**s)) i = i * 10 + *((*s)++) - '0';
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return i;
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}
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static void number(std_putc putc, long num, int base, int size, int precision, int type)
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{
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char c, sign, tmp[66];
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const char* dig = digits;
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int i;
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char tmpch;
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if (type & LARGE) dig = upper_digits;
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if (type & LEFT) type &= ~ZEROPAD;
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if (base < 2 || base > 36) return;
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c = (type & ZEROPAD) ? '0' : ' ';
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sign = 0;
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if (type & SIGN)
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{
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if (num < 0)
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{
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sign = '-';
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num = -num;
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size--;
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}
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else if (type & PLUS)
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{
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sign = '+';
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size--;
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}
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else if (type & SPACE)
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{
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sign = ' ';
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size--;
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}
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}
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if (type & SPECIAL)
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{
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if (base == 16)
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size -= 2;
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else if (base == 8)
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size--;
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}
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i = 0;
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if (num == 0)
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tmp[i++] = '0';
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else
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{
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while (num != 0)
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{
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tmp[i++] = dig[((unsigned long)num) % (unsigned)base];
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num = ((unsigned long)num) / (unsigned)base;
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}
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}
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if (i > precision) precision = i;
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size -= precision;
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if (!(type & (ZEROPAD | LEFT)))
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{
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while (size-- > 0)
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{
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tmpch = ' ';
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putc(&tmpch, 1);
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}
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}
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if (sign)
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{
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putc(&sign, 1);
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}
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if (type & SPECIAL)
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{
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if (base == 8)
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{
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tmpch = '0';
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putc(&tmpch, 1);
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}
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else if (base == 16)
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{
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tmpch = '0';
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putc(&tmpch, 1);
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tmpch = digits[33];
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putc(&tmpch, 1);
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}
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}
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if (!(type & LEFT))
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{
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while (size-- > 0)
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{
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putc(&c, 1);
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}
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}
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while (i < precision--)
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{
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tmpch = '0';
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putc(&tmpch, 1);
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}
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while (i-- > 0)
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{
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tmpch = tmp[i];
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putc(&tmpch, 1);
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}
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while (size-- > 0)
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{
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tmpch = ' ';
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putc(&tmpch, 1);
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}
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}
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static void log_vsprintf(std_putc putc, const char* fmt, va_list args)
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{
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int len;
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unsigned long num;
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int base;
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char* s;
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int flags; // Flags to number()
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int field_width; // Width of output field
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int precision; // Min. # of digits for integers; max number of chars for from string
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int qualifier; // 'h', 'l', or 'L' for integer fields
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char* tmpstr = NULL;
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int tmpstr_size = 0;
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char tmpch;
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for (; *fmt; fmt++)
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{
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if (*fmt != '%')
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{
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if (tmpstr == NULL)
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{
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tmpstr = (char*)fmt;
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tmpstr_size = 0;
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}
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tmpstr_size ++;
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continue;
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}
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else if (tmpstr_size)
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{
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putc(tmpstr, tmpstr_size);
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tmpstr = NULL;
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tmpstr_size = 0;
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}
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// Process flags
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flags = 0;
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repeat:
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fmt++; // This also skips first '%'
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switch (*fmt)
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{
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case '-':
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flags |= LEFT;
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goto repeat;
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case '+':
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flags |= PLUS;
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goto repeat;
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case ' ':
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flags |= SPACE;
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goto repeat;
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case '#':
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flags |= SPECIAL;
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goto repeat;
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case '0':
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flags |= ZEROPAD;
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goto repeat;
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}
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// Get field width
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field_width = -1;
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if (is_digit(*fmt))
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field_width = skip_atoi(&fmt);
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else if (*fmt == '*')
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{
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fmt++;
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field_width = va_arg(args, int);
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if (field_width < 0)
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{
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field_width = -field_width;
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flags |= LEFT;
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}
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}
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// Get the precision
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precision = -1;
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if (*fmt == '.')
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{
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++fmt;
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if (is_digit(*fmt))
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precision = skip_atoi(&fmt);
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else if (*fmt == '*')
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{
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++fmt;
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precision = va_arg(args, int);
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}
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if (precision < 0) precision = 0;
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}
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// Get the conversion qualifier
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qualifier = -1;
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if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L')
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{
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qualifier = *fmt;
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fmt++;
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}
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// Default base
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base = 10;
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switch (*fmt)
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{
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case 'c':
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if (!(flags & LEFT))
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{
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while (--field_width > 0)
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{
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tmpch = ' ';
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putc(&tmpch, 1);
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}
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}
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tmpch = (unsigned char)va_arg(args, int);
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putc(&tmpch, 1);
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while (--field_width > 0)
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{
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tmpch = ' ';
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putc(&tmpch, 1);
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}
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continue;
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case 's':
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s = va_arg(args, char*);
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if (!s)
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s = "<NULL>";
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len = _strnlen(s, precision);
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if (!(flags & LEFT))
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{
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while (len < field_width--)
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{
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tmpch = ' ';
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putc(&tmpch, 1);
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}
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}
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putc(s, len);
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while (len < field_width--)
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{
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tmpch = ' ';
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putc(&tmpch, 1);
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}
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continue;
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case 'p':
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if (field_width == -1)
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{
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field_width = 2 * sizeof(void*);
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flags |= ZEROPAD;
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}
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number(putc,(unsigned long)va_arg(args, void*), 16, field_width, precision, flags);
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continue;
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case 'n':
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continue;
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case 'A':
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continue;
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// Integer number formats - set up the flags and "break"
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case 'o':
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base = 8;
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break;
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case 'X':
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flags |= LARGE;
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base = 16;
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break;
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case 'x':
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base = 16;
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break;
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case 'd':
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case 'i':
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flags |= SIGN;
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break;
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case 'u':
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break;
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default:
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if (*fmt != '%')
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{
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tmpch = '%';
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putc(&tmpch, 1);
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}
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if (*fmt)
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{
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tmpch = *fmt;
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putc(&tmpch, 1);
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}
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else
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{
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--fmt;
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}
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continue;
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}
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if (qualifier == 'l')
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num = va_arg(args, unsigned long);
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else if (qualifier == 'h')
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{
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if (flags & SIGN)
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num = va_arg(args, int);
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else
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num = va_arg(args, unsigned int);
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}
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else if (flags & SIGN)
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num = va_arg(args, int);
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else
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num = va_arg(args, unsigned int);
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number(putc, num, base, field_width, precision, flags);
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}
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if (tmpstr_size)
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{
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putc(tmpstr, tmpstr_size);
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tmpstr = NULL;
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tmpstr_size = 0;
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}
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}
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static void _uart_putc(char* data, uint16_t size)
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{
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hal_uart_send_buff(UART0, (uint8_t*)data, size);
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}
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void dbg_printf(const char* format, ...)
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{
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va_list args;
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va_start(args, format);
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log_vsprintf(_uart_putc, format, args);
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va_end(args);
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}
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void dbg_printf_init(void)
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{
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uart_Cfg_t cfg =
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{
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.tx_pin = P9,
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.rx_pin = P10,
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.rts_pin = GPIO_DUMMY,
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.cts_pin = GPIO_DUMMY,
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.baudrate = 115200,
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.use_fifo = TRUE,
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.hw_fwctrl = FALSE,
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.use_tx_buf = FALSE,
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.parity = FALSE,
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.evt_handler = NULL,
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};
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hal_uart_init(cfg, UART0);//uart init
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}
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void my_dump_byte(uint8_t* pData, int dlen)
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{
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for(int i=0; i<dlen; i++)
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{
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dbg_printf("%02x ",pData[i]);
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}
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dbg_printf("\n");
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}
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