1 // Copyright 2014, ARM Limited 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are met: 6 // 7 // * Redistributions of source code must retain the above copyright notice, 8 // this list of conditions and the following disclaimer. 9 // * Redistributions in binary form must reproduce the above copyright notice, 10 // this list of conditions and the following disclaimer in the documentation 11 // and/or other materials provided with the distribution. 12 // * Neither the name of ARM Limited nor the names of its contributors may be 13 // used to endorse or promote products derived from this software without 14 // specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND 17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 20 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 27 #include "examples.h" 28 29 #define BUF_SIZE (4096) 30 #define __ masm-> 31 32 void GenerateAdd3Double(MacroAssembler* masm) { 33 // double add3_double(double x, double y, double z) 34 // Argument locations: 35 // x -> d0 36 // y -> d1 37 // z -> d2 38 __ Fadd(d0, d0, d1); // d0 <- x + y 39 __ Fadd(d0, d0, d2); // d0 <- d0 + z 40 41 // The return value is already in d0. 42 __ Ret(); 43 } 44 45 46 #ifndef TEST_EXAMPLES 47 #ifdef VIXL_INCLUDE_SIMULATOR 48 int main(void) { 49 // Create and initialize the assembler and the simulator. 50 byte assm_buf[BUF_SIZE]; 51 MacroAssembler masm(assm_buf, BUF_SIZE); 52 Decoder decoder; 53 Simulator simulator(&decoder); 54 55 // Generate the code for the example function. 56 Label add3_double; 57 masm.Bind(&add3_double); 58 GenerateAdd3Double(&masm); 59 masm.FinalizeCode(); 60 61 // Run the example function. 62 double a = 498.36547; 63 double b = 23.369; 64 double c = 7964.697954; 65 simulator.set_dreg(0, a); 66 simulator.set_dreg(1, b); 67 simulator.set_dreg(2, c); 68 simulator.RunFrom(masm.GetLabelAddress<Instruction*>(&add3_double)); 69 printf("%f + %f + %f = %f\n", a, b, c, simulator.dreg(0)); 70 71 return 0; 72 } 73 #else 74 // Without the simulator there is nothing to test. 75 int main(void) { return 0; } 76 #endif // VIXL_INCLUDE_SIMULATOR 77 #endif // TEST_EXAMPLES 78
