1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 .text 30 .align 31 32 .global asm_test_jacket 33 34 // Set the register and flag values 35 // Calls the asm function 36 // Reads the register/flag values to output register 37 38 // Parameters 39 // X0 - Function to jump 40 // X1 - register values array 41 // X2 - flag values array 42 asm_test_jacket: 43 // Save registers to stack 44 stp x29, x30, [sp,#-16]! 45 stp x27, x28, [sp,#-16]! 46 47 mov x30, x0 48 mov x28, x1 49 mov x27, x2 50 51 //Set the flags based on flag array 52 //EQ 53 ldr w0, [x27,#0] 54 cmp w0, #1 55 b.ne bt_aeq 56 cmp w0,#1 57 b bt_end 58 bt_aeq: 59 60 //NE 61 ldr w0, [x27,#4] 62 cmp w0, #1 63 b.ne bt_ane 64 cmp w0,#2 65 b bt_end 66 bt_ane: 67 68 //CS 69 ldr w0, [x27,#8] 70 cmp w0, #1 71 b.ne bt_acs 72 cmp w0,#0 73 b bt_end 74 bt_acs: 75 76 //CC 77 ldr w0, [x27,#12] 78 cmp w0, #1 79 b.ne bt_acc 80 cmp w0,#2 81 b bt_end 82 bt_acc: 83 84 //MI 85 ldr w0, [x27,#16] 86 cmp w0, #1 87 b.ne bt_ami 88 subs w0,w0,#2 89 b bt_end 90 bt_ami: 91 92 //PL 93 ldr w0, [x27,#20] 94 cmp w0, #1 95 b.ne bt_apl 96 subs w0,w0,#0 97 b bt_end 98 bt_apl: 99 //HI - (C==1) && (Z==0) 100 ldr w0, [x27,#32] 101 cmp w0, #1 102 b.ne bt_ahi 103 cmp w0,#0 104 b bt_end 105 bt_ahi: 106 107 //LS - (C==0) || (Z==1) 108 ldr w0, [x27,#36] 109 cmp w0, #1 110 b.ne bt_als 111 cmp w0,#1 112 b bt_end 113 bt_als: 114 115 //GE 116 ldr w0, [x27,#40] 117 cmp w0, #1 118 b.ne bt_age 119 cmp w0,#0 120 b bt_end 121 bt_age: 122 123 //LT 124 ldr w0, [x27,#44] 125 cmp w0, #1 126 b.ne bt_alt 127 cmp w0,#2 128 b bt_end 129 bt_alt: 130 131 //GT 132 ldr w0, [x27,#48] 133 cmp w0, #1 134 b.ne bt_agt 135 cmp w0,#0 136 b bt_end 137 bt_agt: 138 139 //LE 140 ldr w0, [x27,#52] 141 cmp w0, #1 142 b.ne bt_ale 143 cmp w0,#2 144 b bt_end 145 bt_ale: 146 147 148 bt_end: 149 150 // Load the registers from reg array 151 ldr x0, [x28,#0] 152 ldr x1, [x28,#8] 153 ldr x2, [x28,#16] 154 ldr x3, [x28,#24] 155 ldr x4, [x28,#32] 156 ldr x5, [x28,#40] 157 ldr x6, [x28,#48] 158 ldr x7, [x28,#56] 159 ldr x8, [x28,#64] 160 ldr x9, [x28,#72] 161 ldr x10, [x28,#80] 162 ldr x11, [x28,#88] 163 ldr x12, [x28,#96] 164 ldr x14, [x28,#112] 165 166 // Call the function 167 blr X30 168 169 // Save the registers to reg array 170 str x0, [x28,#0] 171 str x1, [x28,#8] 172 str x2, [x28,#16] 173 str x3, [x28,#24] 174 str x4, [x28,#32] 175 str x5, [x28,#40] 176 str x6, [x28,#48] 177 str x7, [x28,#56] 178 str x8, [x28,#64] 179 str x9, [x28,#72] 180 str x10, [x28,#80] 181 str x11, [x28,#88] 182 str x12, [x28,#96] 183 str x14, [x28,#112] 184 185 //Set the flags array based on result flags 186 movz w0, #0 187 movz w1, #1 188 csel w2, w1, w0, EQ 189 str w2, [x27,#0] 190 csel w2, w1, w0, NE 191 str w2, [x27,#4] 192 csel w2, w1, w0, CS 193 str w2, [x27,#8] 194 csel w2, w1, w0, CC 195 str w2, [x27,#12] 196 csel w2, w1, w0, MI 197 str w2, [x27,#16] 198 csel w2, w1, w0, PL 199 str w2, [x27,#20] 200 csel w2, w1, w0, VS 201 str w2, [x27,#24] 202 csel w2, w1, w0, VC 203 str w2, [x27,#28] 204 csel w2, w1, w0, HI 205 str w2, [x27,#32] 206 csel w2, w1, w0, LS 207 str w2, [x27,#36] 208 csel w2, w1, w0, GE 209 str w2, [x27,#40] 210 csel w2, w1, w0, LT 211 str w2, [x27,#44] 212 csel w2, w1, w0, GT 213 str w2, [x27,#48] 214 csel w2, w1, w0, LE 215 str w2, [x27,#52] 216 217 // Restore registers from stack 218 ldp x27, x28, [sp],#16 219 ldp x29, x30, [sp],#16 220 ret 221 222
