You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
3.3 KiB
99 lines
3.3 KiB
// 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"
|
|
|
|
using namespace vixl;
|
|
using namespace vixl::aarch64;
|
|
|
|
#define __ masm->
|
|
|
|
void GenerateSwap4(MacroAssembler* masm) {
|
|
// VIXL's macro assembler provides some functions to manipulate the stack.
|
|
// This example shows some of these functions.
|
|
__ Claim(16);
|
|
__ Poke(x0, 0);
|
|
__ Poke(x1, 8);
|
|
__ Push(x3, x2);
|
|
|
|
__ Pop(x1, x0);
|
|
__ Peek(x3, 0);
|
|
__ Peek(x2, 8);
|
|
__ Drop(16);
|
|
|
|
__ Ret();
|
|
}
|
|
|
|
|
|
#ifndef TEST_EXAMPLES
|
|
#ifdef VIXL_INCLUDE_SIMULATOR_AARCH64
|
|
int main(void) {
|
|
MacroAssembler masm;
|
|
Decoder decoder;
|
|
Simulator simulator(&decoder);
|
|
|
|
// Generate the code for the example function.
|
|
Label swap4;
|
|
masm.Bind(&swap4);
|
|
GenerateSwap4(&masm);
|
|
masm.FinalizeCode();
|
|
|
|
// Run the example function.
|
|
simulator.WriteXRegister(0, 0x1111111111111111);
|
|
simulator.WriteXRegister(1, 0x2222222222222222);
|
|
simulator.WriteXRegister(2, 0x3333333333333333);
|
|
simulator.WriteXRegister(3, 0x4444444444444444);
|
|
|
|
// clang-format off
|
|
printf("Before swap4:\n"
|
|
"x0 = 0x%" PRIx64 "\n"
|
|
"x1 = 0x%" PRIx64 "\n"
|
|
"x2 = 0x%" PRIx64 "\n"
|
|
"x3 = 0x%" PRIx64 "\n",
|
|
simulator.ReadXRegister(0), simulator.ReadXRegister(1),
|
|
simulator.ReadXRegister(2), simulator.ReadXRegister(3));
|
|
// clang-format on
|
|
|
|
simulator.RunFrom(masm.GetLabelAddress<Instruction*>(&swap4));
|
|
|
|
// clang-format off
|
|
printf("After swap4:\n"
|
|
"x0 = 0x%" PRIx64 "\n"
|
|
"x1 = 0x%" PRIx64 "\n"
|
|
"x2 = 0x%" PRIx64 "\n"
|
|
"x3 = 0x%" PRIx64 "\n",
|
|
simulator.ReadXRegister(0), simulator.ReadXRegister(1),
|
|
simulator.ReadXRegister(2), simulator.ReadXRegister(3));
|
|
// clang-format on
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
// Without the simulator there is nothing to test.
|
|
int main(void) { return 0; }
|
|
#endif // VIXL_INCLUDE_SIMULATOR_AARCH64
|
|
#endif // TEST_EXAMPLES
|