Supported Functions

The following syscalls (platform functions) are supported by all:

• String-related:

• Asc                string character —> ASCII code;

• Chr                ASCII code —> string character;

• Val                numerical string—> 16-bit value (word or short);

• Lval                numerical string —> 32-bit value (dword or long);

• Strtof                numerical string —> real value;

• Bin                unsigned 16-bit numeric value (word) —> binary numerical string;

• Lbin                unsigned 32-bit numeric value (dword) —> binary numerical string;

• Str                unsigned 16-bit numeric value (word) —> decimal numerical string;

• Stri                signed 16-bit numeric value (short) —> decimal numerical string;

• Lstr                unsigned 32-bit numeric value (dword) —> decimal numerical string;

• Lstri                signed 32-bit numeric value (long) —> decimal numerical string;

• Hex                unsigned 16-bit numeric value (word) —> hexadecimal numerical string;

• Lhex                unsigned 32-bit numeric value (dword) —> hexadecimal numerical string;

• Ftostr                real value —> numerical string;

• Len                gets the string length;

• Left                gets a left portion of a string;

• Mid                gets a middle portion of a string;

• Right                gets a right portion of a string;

• Insert                inserts a string into another string;

• Instr                finds a substring in a string;

• Strgen                generates a string using repeating substring;

• Strsum                calculates 16-bit (word) sum of string characters' ASCII codes;

• Ddstr                dot-decimal value —> dot-decimal string;

• Ddval                dot-decimal string —> dot-decimal value;

• Strand                logical AND on corresponding data bytes from two strings;

• Stror                logical OR on corresponding data bytes from two strings;

• Strxor                logical XOR on corresponding data bytes from two strings.

• Date and time serialization and de-serialization:

• Daycount        given year, month, and date —> day number;

• Mincount        given hours and minutes —> minute number;

• Year                given day number —> year;

• Month                given day number —> month;

• Date                given day number —> date;

• Weekday        given day number —> day of the week;

• Hours                given minutes number —> hours;

• Minutes        given minutes number —> minutes.

• Hash calculation, encryption, and related functions:

• Aes128enc        encrypts data according to the AES128 algorithm ( not supported on the EM500W and DS1100 platforms);

• Aes128dec        decrypts data according to the AES128 algorithm ( not supported on the EM500W and DS1100 platforms);

• Rc4                encrypts/decrypts data according to the RC4 algorithm;

• Md5                calculates MD5 hash of a string;

• Sha1                calculates SHA-1 hash of a string;

• Random        generates a random string;

• Miscellaneous

• Cfloat                checks the validity of a real value.