C02/include/intlib.h02

/*********************************************************
 * intlib - Standard Library Routines for Integer Values *
 *********************************************************/

/* Absolute Value                          *
 * Args: w - Word to get absolute value of *
 * Returns: (int) Absolute value of w      */
char iabs();

/* Add Integers                 *
 * Requires: setsrc(g) - Augend *
 * Args: d - Addend             *
 * Returns: (int) Sum           */
char iadd();
 
/* Convert ASCII String to Unsigned Integer *
 * Args: &s - String to Convert             *
 * Returns: (char) Number of digits parsed  *
 *          (int) Numeric value of string   */
char atoi();

/* Convert Unsigned Integer to ASCII String *
 * Requires: setdst(s) - Destination String *
 * Args: w  - Unsigned Byte to Convert      *
 * Returns: Length of string                */
void itoa();

/* Divide Unsigned Integers        *
 * Requires: setsrc(n) - Numerator *
 * Args: d - Denominator           *
 * Returns: (int) Quotient         */
char idiv();
 
/* Maximum of Two Integers             *
 * Requires: setsrc(i) - First Integer *
 * Args: j - Second Integer            *
 * Returns: (int) Greater of the Two   */
char max();

/* Minimum of Two Integers       *
 * Requires: setsrc(i) - First Integer *
 * Args: j - Second Integer            *
 * Returns: (int) Lesser of the Two */
char min();

/* Multiply Unsigned Integers           *
 * Requires: setsrc(m) - Muliplicand    *
 * Args: r - Multiplier                 *
 * Returns: (char) Product (Bits 16-23) *
 *          (int) Product (Bits 0-15)   */
char mult();

/* Shift Integer Left                *
 * Args: n - Number of Bits to Shift *
 *       w - Integer Value to Shift  *  
 * Returns: Shifted Integer          */
char ishftl();

/* Shift Byte Right                  *
 * Args: n - Number of Bits to Shift *
 *       w - Integer Value to Shift  *  
 * Returns: Shifted Integer          */
char ishftr();

/* Subtract Integers              *
 * Requires: setsrc(m) - Minuend  *
 * Args: s - Subtrahend           *
 * Returns: (int) Difference      */
char isub();