1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ART_RUNTIME_ARCH_MIPS_MEMCMP16_MIPS_S_ 18 #define ART_RUNTIME_ARCH_MIPS_MEMCMP16_MIPS_S_ 19 20 #include "asm_support_mips.S" 21 22 // u4 __memcmp16(const u2*, const u2*, size_t); 23 ENTRY __memcmp16 24 li $t0,0 25 li $t1,0 26 beqz $a2,done /* 0 length string */ 27 beq $a0,$a1,done /* strings are identical */ 28 29 /* Unoptimised... */ 30 1: lhu $t0,0($a0) 31 lhu $t1,0($a1) 32 addu $a1,2 33 bne $t0,$t1,done 34 addu $a0,2 35 subu $a2,1 36 bnez $a2,1b 37 38 done: 39 subu $v0,$t0,$t1 40 j $ra 41 END __memcmp16 42 43 #endif // ART_RUNTIME_ARCH_MIPS_MEMCMP16_MIPS_S_ 44
