1 /* Copyright (C) 2008 The Android Open Source Project 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 /* 17 * File: OP_CMP_LONG.S 18 * 19 * Code: Compare floating point values. Uses no substitutions. 20 * 21 * For: cmp-long 22 * 23 * Description: Perform a long comparison, storing 0 if the two 24 * arguments are equal, 1 if the second argument is larger 25 * or -1 if the first argument is larger. 26 * 27 * Format: AA|op CC|BB (23x) 28 * 29 * Syntax: op vAA, vBB, vCC 30 */ 31 32 FETCH_BB 1, %ecx # %ecx<- BB 33 FETCH_CC 1, %edx # %edx<- CC 34 movl 4(rFP, %ecx, 4), %eax # %eax<- vBBhi 35 cmp 4(rFP, %edx, 4), %eax # compare vCChi and vBBhi 36 jl .L${opcode}_less 37 jg .L${opcode}_greater 38 movl (rFP, %ecx, 4), %eax # %eax<- vBBlo 39 cmp (rFP, %edx, 4), %eax # compare vCClo and vBBlo 40 ja .L${opcode}_greater 41 jne .L${opcode}_less 42 jmp .L${opcode}_final 43 %break 44 45 .L${opcode}_final: 46 movl $$0x0, (rFP, rINST, 4) # vAA<- equal 47 FINISH 2 # jump to next instruction 48 49 .L${opcode}_less: 50 movl $$0xFFFFFFFF, (rFP, rINST, 4) # vAA<- less than 51 FINISH 2 # jump to next instruction 52 53 .L${opcode}_greater: 54 movl $$0x1, (rFP, rINST, 4) # vAA<- greater than 55 FINISH 2 # jump to next instruction 56
