SPIM.java |
1 // Copyright 2012- Bill Campbell, Swami Iyer and Bahar Akbal-Delibas 2 3 package jminusminus; 4 5 /** 6 * This is a Java wrapper class for the SPIM runtime file SPIM.s. Any j-- program that's 7 * compiled for the SPIM target must import this class for console IO operations. Note that the 8 * functions have no implementations here which means that if the programs using this class are 9 * compiled using j--, they will compile fine but won't function as desired when run against the 10 * JVM. Such programs must be compiled using the j-- compiler for the SPIM target and must be run 11 * against the SPIM simulator. 12 */ 13 public class SPIM { 14 /** 15 * Prints an integer to the console. 16 * 17 * @param value the integer. 18 */ 19 public static void printInt(int value) { 20 } 21 22 /** 23 * Prints a float to the console. 24 * 25 * @param value the float. 26 */ 27 public static void printFloat(float value) { 28 } 29 30 /** 31 * Prints a double to the console. 32 * 33 * @param value the double. 34 */ 35 public static void printDouble(double value) { 36 } 37 38 /** 39 * Prints a string to the console. 40 * 41 * @param value the string. 42 */ 43 public static void printString(String value) { 44 } 45 46 /** 47 * Prints a char to the console. 48 * 49 * @param value the char. 50 */ 51 public static void printChar(char value) { 52 } 53 54 /** 55 * Reads and returns an integer from the console. 56 * 57 * @return an integer from the console. 58 */ 59 public static int readInt() { 60 return 0; 61 } 62 63 /** 64 * Reads and returns a float from the console. 65 * 66 * @return a float from the console. 67 */ 68 public static float readFloat() { 69 return 0; 70 } 71 72 /** 73 * Reads and returns a double from the console. 74 * 75 * @return a double from the console. 76 */ 77 public static double readDouble() { 78 return 0; 79 } 80 81 /** 82 * Reads and returns a string from the console. 83 * 84 * @return a string from the console. 85 */ 86 public static String readString(int length) { 87 return null; 88 } 89 90 /** 91 * Reads and returns a char from the console. 92 * 93 * @return a char from the console. 94 */ 95 public static char readChar() { 96 return ' '; 97 } 98 99 /** 100 * Exits SPIM. 101 */ 102 public static void exit() { 103 } 104 105 /** 106 * Exits SPIM with the given code. 107 * 108 * @param code the exit code. 109 */ 110 public static void exit2(int code) { 111 } 112 } 113