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// Copyright 2014, VIXL authors
// 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 __ masm->
void GenerateAdd4Double(MacroAssembler* masm) {
// double Add4Double(uint64_t a, double b, uint64_t c, double d)
// Argument locations:
// a -> x0
// b -> d0
// c -> x1
// d -> d1
// Turn 'a' and 'c' into double values.
__ Ucvtf(d2, x0);
__ Ucvtf(d3, x1);
// Add everything together.
__ Fadd(d0, d0, d1);
__ Fadd(d2, d2, d3);
__ Fadd(d0, d0, d2);
// The return value is in d0.
__ Ret();
}
#ifndef TEST_EXAMPLES
#ifdef VIXL_INCLUDE_SIMULATOR
int main(void) {
MacroAssembler masm;
Decoder decoder;
Simulator simulator(&decoder);
// Generate the code for the example function.
Label add4_double;
masm.Bind(&add4_double);
GenerateAdd4Double(&masm);
masm.FinalizeCode();
// Run the example function.
uint64_t a = 21;
double b = 987.3654;
uint64_t c = 4387;
double d = 36.698754;
simulator.WriteXRegister(0, a);
simulator.WriteDRegister(0, b);
simulator.WriteXRegister(1, c);
simulator.WriteDRegister(1, d);
simulator.RunFrom(masm.GetLabelAddress<Instruction*>(&add4_double));
// clang-format off
printf("%" PRIu64 " + %f + %" PRIu64 " + %f = %f\n",
a, b, c, d, simulator.ReadDRegister(0));
// clang-format on
return 0;
}
#else
// Without the simulator there is nothing to test.
int main(void) { return 0; }
#endif // VIXL_INCLUDE_SIMULATOR
#endif // TEST_EXAMPLES
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