1 package com.tapina.robe.swi.clib.string;
2
3 import com.tapina.robe.runtime.Environment;
4 import com.tapina.robe.runtime.MemoryMap;
5 import com.tapina.robe.swi.clib.Stub;
6
7 /***
8 * This function compares up to a3 characters and returns a value as appropriate. Characters after a null byte are not
9 * compared.
10 * Returns: Greater than, less than or equal to zero, depending if the string pointed to by a1 is greater than,
11 * less than or equal to the string pointed to by a2.
12 */
13 public class StrNCmp extends Stub {
14 public void executeStub(Environment environment) {
15 final MemoryMap memoryMap = environment.getMemoryMap();
16 final int[] R = environment.getCpu().R;
17 final String str1 = memoryMap.getStringN(R[0], R[2]);
18 final String str2 = memoryMap.getStringN(R[1], R[2]);
19 R[0] = str1.compareTo(str2);
20 }
21 }