sli.c File Reference

Standard Library Interface. More...

#include "pm.h"

Defines
#define	__FILE_ID__   0x11
#define	USE_DUFFS_DEVICE   0
Functions
void *	sli_memcpy (unsigned char *to, unsigned char const *from, unsigned int n)
int	sli_strlen (char const *s)
int	sli_strcmp (char const *s1, char const *s2)
int	sli_strncmp (char const *s1, char const *s2, unsigned int n)
void	sli_memset (unsigned char *dest, char const val, unsigned int n)

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Detailed Description

Standard Library Interface.

PyMite requires a few functions from a few different standard C libraries (memory, string, etc).

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Define Documentation

#define USE_DUFFS_DEVICE   0

use Duff's Device or simple for-loop for memcpy.

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Function Documentation

void* sli_memcpy	(	unsigned char *	,
		unsigned char const *	,
		unsigned	int
	)

Copy a block of memory in RAM.

Parameters:

	to	the destination address.
	from	the source address.
	n	the number of bytes to copy.

Returns:

The initial pointer value of the destination

See also:

mem_copy

void sli_memset	(	unsigned char *	dest,
		const char	val,
		unsigned int	n
	)

Copy a value repeatedly into a block of memory

Parameters:

	dest	the destination address.
	val	the value.
	n	the number of bytes to copy.

Returns:

Nothing

See also:

memset

int sli_strcmp	(	char const *	,
		char const *
	)

Compare strings.

Parameters:

	s1	ptr to string 1.
	s2	ptr to string 2.

Returns:

value that is less then, equal to or greater than 0 depending on whether s1's encoding is less than, equal to, or greater than s2's.

int sli_strlen

(

char const *

s

)

Obtain string length.

Parameters:

s

ptr to string.

Returns:

number of bytes in string.

int sli_strncmp	(	char const *	s1,
		char const *	s2,
		unsigned int	n
	)

Compare strings for a specific length.

Parameters:

	s1	ptr to string 1.
	s2	ptr to string 2.
	n	number of chars to compare

Returns:

value that is less then, equal to or greater than 0 depending on whether s1's encoding is less than, equal to, or greater than s2's.