48 lines
1.4 KiB
Plaintext
48 lines
1.4 KiB
Plaintext
// This file is part of www.nand2tetris.org
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// and the book "The Elements of Computing Systems"
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// by Nisan and Schocken, MIT Press.
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// File name: projects/12/Math.jack
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/**
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* A library of commonly used mathematical functions.
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* Note: Jack compilers implement multiplication and division using OS method calls.
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*/
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class Math {
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/** Initializes the library. */
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function void init() {
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}
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/** Returns the absolute value of x. */
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function int abs(int x) {
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}
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/** Returns the product of x and y.
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* When a Jack compiler detects the multiplication operator '*' in the
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* program's code, it handles it by invoking this method. In other words,
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* the Jack expressions x*y and multiply(x,y) return the same value.
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*/
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function int multiply(int x, int y) {
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}
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/** Returns the integer part of x/y.
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* When a Jack compiler detects the multiplication operator '/' in the
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* program's code, it handles it by invoking this method. In other words,
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* the Jack expressions x/y and divide(x,y) return the same value.
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*/
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function int divide(int x, int y) {
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}
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/** Returns the integer part of the square root of x. */
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function int sqrt(int x) {
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}
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/** Returns the greater number. */
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function int max(int a, int b) {
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}
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/** Returns the smaller number. */
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function int min(int a, int b) {
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}
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}
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