Mikroelektronika MIKROE-350 Fiche De Données

491

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

sub procedure memset(dim p as ^byte, dim character as byte, dim n
as word)

The function fills the first n words in the memory area starting at the address 

p

with the value of word 

character

.

For parameter p you can use either a numerical value (literal/variable/constant)
indicating memory address or a dereferenced value of an object, for example

@mystring

or 

@PORTB

.

sub procedure strcat(dim byref s1, s2 as string[100])

The function appends the value of string 

s2

to string 

s1

and terminates 

s1

with

a null character.

sub function strchr(dim byref s as string[100], dim ch as byte)
as word

The function searches the string s for the first occurrence of the character ch.
The null character terminating s is not included in the search.

The function returns the position (index) of the first character ch found in s; if no
matching character was found, the function returns 

0xFFFF

.

sub function strcmp(dim byref s1, s2 as string[100]) as short

The function lexicographically compares the contents of the strings s1 and s2
and returns a value indicating their relationship:

< 0      s1 "less than" s2
= 0      s1 "equal to" s2

> 0      s1 "greater than" s2

The value returned by the function is determined by the difference between the
values of the first pair of words that differ in the strings being compared.