| // Copyright 2014, ARM Limited |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // * Redistributions of source code must retain the above copyright notice, |
| // this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // * Neither the name of ARM Limited nor the names of its contributors may be |
| // used to endorse or promote products derived from this software without |
| // specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND |
| // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "examples.h" |
| |
| #define BUF_SIZE (4096) |
| #define __ masm-> |
| |
| void GenerateAdd3Double(MacroAssembler* masm) { |
| // double add3_double(double x, double y, double z) |
| // Argument locations: |
| // x -> d0 |
| // y -> d1 |
| // z -> d2 |
| __ Fadd(d0, d0, d1); // d0 <- x + y |
| __ Fadd(d0, d0, d2); // d0 <- d0 + z |
| |
| // The return value is already in d0. |
| __ Ret(); |
| } |
| |
| |
| #ifndef TEST_EXAMPLES |
| #ifdef VIXL_INCLUDE_SIMULATOR |
| int main(void) { |
| // Create and initialize the assembler and the simulator. |
| byte assm_buf[BUF_SIZE]; |
| MacroAssembler masm(assm_buf, BUF_SIZE); |
| Decoder decoder; |
| Simulator simulator(&decoder); |
| |
| // Generate the code for the example function. |
| Label add3_double; |
| masm.Bind(&add3_double); |
| GenerateAdd3Double(&masm); |
| masm.FinalizeCode(); |
| |
| // Run the example function. |
| double a = 498.36547; |
| double b = 23.369; |
| double c = 7964.697954; |
| simulator.WriteDRegister(0, a); |
| simulator.WriteDRegister(1, b); |
| simulator.WriteDRegister(2, c); |
| simulator.RunFrom(masm.GetLabelAddress<Instruction*>(&add3_double)); |
| printf("%f + %f + %f = %f\n", a, b, c, simulator.ReadDRegister(0)); |
| |
| return 0; |
| } |
| #else |
| // Without the simulator there is nothing to test. |
| int main(void) { return 0; } |
| #endif // VIXL_INCLUDE_SIMULATOR |
| #endif // TEST_EXAMPLES |