* Copyright (C) 2004, 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* This program is free software; you can redistribute it and/or modify *
uint8_t* buf_cpy(const uint8_t *from, uint8_t *to, int size)
{
- unsigned int num_bytes = CEIL(size, 8);
- unsigned int i;
-
if (from == NULL)
return NULL;
- for (i = 0; i < num_bytes; i++)
+ for (unsigned i = 0, num_bytes = CEIL(size, 8); i < num_bytes; i++)
to[i] = from[i];
/* mask out bits that don't belong to the buffer */
int buf_cmp(const uint8_t *buf1, const uint8_t *buf2, int size)
{
- int num_bytes = CEIL(size, 8);
- int i;
-
if (!buf1 || !buf2)
return 1;
- for (i = 0; i < num_bytes; i++)
+ for (unsigned i = 0, num_bytes = CEIL(size, 8); i < num_bytes; i++)
{
/* last byte */
/* mask out bits that don't really belong to the buffer if size isn't a multiple of 8 bits */
- if ((size % 8) && (i == num_bytes -1 ))
+ if ((size % 8) && (i == num_bytes -1))
{
if ((buf1[i] & ((1 << (size % 8)) - 1)) != (buf2[i] & ((1 << (size % 8)) - 1)))
return 1;
int buf_cmp_mask(const uint8_t *buf1, const uint8_t *buf2, const uint8_t *mask, int size)
{
- int num_bytes = CEIL(size, 8);
- int i;
-
- for (i = 0; i < num_bytes; i++)
+ for (unsigned i = 0, num_bytes = CEIL(size, 8); i < num_bytes; i++)
{
/* last byte */
/* mask out bits that don't really belong to the buffer if size isn't a multiple of 8 bits */
- if ((size % 8) && (i == num_bytes -1 ))
+ if ((size % 8) && (i == num_bytes -1))
{
if ((buf1[i] & ((1 << (size % 8)) - 1) & mask[i]) !=
(buf2[i] & ((1 << (size % 8)) - 1) & mask[i]))
uint8_t* buf_set_ones(uint8_t *buf, int count)
{
- int num_bytes = CEIL(count, 8);
- int i;
-
- for (i = 0; i < num_bytes; i++)
+ for (unsigned i = 0, num_bytes = CEIL(count, 8); i < num_bytes; i++)
{
if (count >= 8)
buf[i] = 0xff;
uint8_t* buf_set_buf(const uint8_t *src, int src_start, uint8_t *dst, int dst_start, int len)
{
int src_idx = src_start, dst_idx = dst_start;
- int i;
- for (i = 0; i < len; i++)
+ for (int i = 0; i < len; i++)
{
- if (((src[src_idx/8] >> (src_idx % 8)) & 1) == 1)
- dst[dst_idx/8] |= 1 << (dst_idx%8);
+ if (((src[src_idx / 8] >> (src_idx % 8)) & 1) == 1)
+ dst[dst_idx / 8] |= 1 << (dst_idx % 8);
else
- dst[dst_idx/8] &= ~(1 << (dst_idx%8));
+ dst[dst_idx / 8] &= ~(1 << (dst_idx % 8));
dst_idx++;
src_idx++;
}
return dst;
}
-u32 flip_u32(u32 value, unsigned int num)
+uint32_t flip_u32(uint32_t value, unsigned int num)
{
- u32 c;
-
- c = (bit_reverse_table256[value & 0xff] << 24) |
+ uint32_t c = (bit_reverse_table256[value & 0xff] << 24) |
(bit_reverse_table256[(value >> 8) & 0xff] << 16) |
(bit_reverse_table256[(value >> 16) & 0xff] << 8) |
(bit_reverse_table256[(value >> 24) & 0xff]);
int ceil_f_to_u32(float x)
{
- u32 y;
-
if (x < 0) /* return zero for negative numbers */
return 0;
- y = x; /* cut off fraction */
+ uint32_t y = x; /* cut off fraction */
if ((x - y) > 0.0) /* if there was a fractional part, increase by one */
y++;
return y;
}
-char* buf_to_str(const uint8_t *buf, int buf_len, int radix)
+char* buf_to_str(const void *_buf, unsigned buf_len, unsigned radix)
{
- const char *DIGITS = "0123456789ABCDEF";
float factor;
- char *str;
- int str_len;
- int b256_len = CEIL(buf_len, 8);
- u32 tmp;
-
- int j; /* base-256 digits */
- int i; /* output digits (radix) */
-
- if (radix == 16)
- {
+ switch (radix) {
+ case 16:
factor = 2.0; /* log(256) / log(16) = 2.0 */
- }
- else if (radix == 10)
- {
+ break;
+ case 10:
factor = 2.40824; /* log(256) / log(10) = 2.40824 */
- }
- else if (radix == 8)
- {
+ break;
+ case 8:
factor = 2.66667; /* log(256) / log(8) = 2.66667 */
- }
- else
+ break;
+ default:
return NULL;
+ }
- str_len = ceil_f_to_u32(CEIL(buf_len, 8) * factor);
- str = calloc(str_len + 1, 1);
+ unsigned str_len = ceil_f_to_u32(CEIL(buf_len, 8) * factor);
+ char *str = calloc(str_len + 1, 1);
- for (i = b256_len - 1; i >= 0; i--)
+ const uint8_t *buf = _buf;
+ int b256_len = CEIL(buf_len, 8);
+ for (int i = b256_len - 1; i >= 0; i--)
{
- tmp = buf[i];
- if ((i == (buf_len / 8)) && (buf_len % 8))
+ uint32_t tmp = buf[i];
+ if (((unsigned)i == (buf_len / 8)) && (buf_len % 8))
tmp &= (0xff >> (8 - (buf_len % 8)));
- for (j = str_len; j > 0; j--)
+ /* base-256 digits */
+ for (unsigned j = str_len; j > 0; j--)
{
- tmp += (u32)str[j-1] * 256;
+ tmp += (uint32_t)str[j-1] * 256;
str[j-1] = (uint8_t)(tmp % radix);
tmp /= radix;
}
}
- for (j = 0; j < str_len; j++)
+ const char *DIGITS = "0123456789ABCDEF";
+ for (unsigned j = 0; j < str_len; j++)
str[j] = DIGITS[(int)str[j]];
return str;
}
-int str_to_buf(const char *str, int str_len, uint8_t *buf, int buf_len, int radix)
+/// identify radix, and skip radix-prefix (0, 0x or 0X)
+static void str_radix_guess(const char **_str, unsigned *_str_len,
+ unsigned *_radix)
{
- char *charbuf;
- u32 tmp;
- float factor;
- uint8_t *b256_buf;
- int b256_len;
-
- int j; /* base-256 digits */
- int i; /* input digits (ASCII) */
-
- if (radix == 0)
+ unsigned radix = *_radix;
+ if (0 != radix)
+ return;
+ const char *str = *_str;
+ unsigned str_len = *_str_len;
+ if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
{
- /* identify radix, and skip radix-prefix (0, 0x or 0X) */
- if ((str[0] == '0') && (str[1] && ((str[1] == 'x') || (str[1] == 'X'))))
- {
- radix = 16;
- str += 2;
- str_len -= 2;
- }
- else if ((str[0] == '0') && (str_len != 1))
- {
- radix = 8;
- str += 1;
- str_len -= 1;
- }
- else
- {
- radix = 10;
- }
+ radix = 16;
+ str += 2;
+ str_len -= 2;
}
+ else if ((str[0] == '0') && (str_len != 1))
+ {
+ radix = 8;
+ str += 1;
+ str_len -= 1;
+ }
+ else
+ {
+ radix = 10;
+ }
+ *_str = str;
+ *_str_len = str_len;
+ *_radix = radix;
+}
+int str_to_buf(const char *str, unsigned str_len,
+ void *_buf, unsigned buf_len, unsigned radix)
+{
+ str_radix_guess(&str, &str_len, &radix);
+
+ float factor;
if (radix == 16)
factor = 0.5; /* log(16) / log(256) = 0.5 */
else if (radix == 10)
return 0;
/* copy to zero-terminated buffer */
- charbuf = malloc(str_len + 1);
+ char *charbuf = malloc(str_len + 1);
memcpy(charbuf, str, str_len);
charbuf[str_len] = '\0';
/* number of digits in base-256 notation */
- b256_len = ceil_f_to_u32(str_len * factor);
- b256_buf = calloc(b256_len, 1);
+ unsigned b256_len = ceil_f_to_u32(str_len * factor);
+ uint8_t *b256_buf = calloc(b256_len, 1);
/* go through zero terminated buffer */
+ /* input digits (ASCII) */
+ unsigned i;
for (i = 0; charbuf[i]; i++)
{
- tmp = charbuf[i];
+ uint32_t tmp = charbuf[i];
if ((tmp >= '0') && (tmp <= '9'))
tmp = (tmp - '0');
else if ((tmp >= 'a') && (tmp <= 'f'))
tmp = (tmp - 'A' + 10);
else continue; /* skip characters other than [0-9,a-f,A-F] */
- if (tmp >= (u32)radix)
+ if (tmp >= radix)
continue; /* skip digits invalid for the current radix */
- for (j = 0; j < b256_len; j++)
+ /* base-256 digits */
+ for (unsigned j = 0; j < b256_len; j++)
{
- tmp += (u32)b256_buf[j] * radix;
+ tmp += (uint32_t)b256_buf[j] * radix;
b256_buf[j] = (uint8_t)(tmp & 0xFF);
tmp >>= 8;
}
}
- for (j = 0; j < CEIL(buf_len, 8); j++)
+ uint8_t *buf = _buf;
+ for (unsigned j = 0; j < CEIL(buf_len, 8); j++)
{
if (j < b256_len)
buf[j] = b256_buf[j];
return i;
}
-
-int buf_to_u32_handler(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- u32 *dest = priv;
-
- *dest = buf_get_u32(in_buf, 0, 32);
-
- return ERROR_OK;
-}
Code Review / openocd.git / blobdiff