mirror of
https://github.com/FEX-Emu/vixl.git
synced 2024-11-23 22:50:29 +00:00
0f35e36b7f
Refer to the README.md and LICENCE files for details. Change-Id: I922914f4e7da7cb939a8054cded11feb9ea51a86
91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
// 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 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) {
|
|
// 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 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.set_xreg(0, a);
|
|
simulator.set_dreg(0, b);
|
|
simulator.set_xreg(1, c);
|
|
simulator.set_dreg(1, d);
|
|
simulator.RunFrom(masm.GetLabelAddress<Instruction*>(&add4_double));
|
|
// clang-format off
|
|
printf("%" PRIu64 " + %f + %" PRIu64 " + %f = %f\n",
|
|
a, b, c, d, simulator.dreg(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
|