mirror of
https://github.com/openharmony/third_party_vixl.git
synced 2026-07-01 20:54:04 -04:00
Alexandre Rames
105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
// Copyright 2016, VIXL authors
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of ARM Limited nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "examples.h"
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#define __ masm->
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void GenerateGradeComment(MacroAssembler* masm) {
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// Given a grade 'A', 'B', 'C', 'D' or 'F', print a relevant
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// comment.
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// void GradeComment(char grade)
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Label invalid_input;
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__ Subs(r1, r0, 'A');
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__ B(lt, &invalid_input);
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Label break_switch;
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// Manage the cases from 'A' to 'F' included.
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// Switch/Case handles inputs from [0, n[
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// and here n is 'F' - 'A' + 1 which is 6
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// 'E' will be handled in default case.
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JumpTable8bitOffset grade_comment('F' - 'A' + 1);
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__ Switch(r1, &grade_comment);
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__ Case(&grade_comment, 'A' - 'A');
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__ Printf("Excellent!!\n");
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__ Break(&grade_comment);
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__ Case(&grade_comment, 'B' - 'A');
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__ Printf("Good job!\n");
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__ Break(&grade_comment);
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__ Case(&grade_comment, 'C' - 'A');
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__ Printf("You passed\n");
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__ Break(&grade_comment);
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__ Case(&grade_comment, 'D' - 'A');
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__ Printf("Could do better\n");
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__ Break(&grade_comment);
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__ Case(&grade_comment, 'F' - 'A');
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__ Printf("You failed!\n");
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__ Break(&grade_comment);
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__ Default(&grade_comment);
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__ Bind(&invalid_input);
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__ Printf("Invalid input: %c\n", r0);
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__ EndSwitch(&grade_comment);
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__ Bx(lr);
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}
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#ifndef TEST_EXAMPLES
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int main() {
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MacroAssembler masm;
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masm.SetT32(true);
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// Generate the code for the example function.
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Label entry_point;
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masm.Bind(&entry_point);
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GenerateGradeComment(&masm);
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masm.FinalizeCode();
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#ifdef VIXL_INCLUDE_SIMULATOR
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// There is no simulator defined for VIXL AArch32.
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printf("This example cannot be simulated\n");
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#else
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byte* code = masm.GetBuffer().GetBuffer();
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uint32_t code_size = masm.GetBuffer().GetSizeInBytes();
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ExecutableMemory memory(code, code_size);
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// Run the example function.
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void (*comment_function)(char grade) =
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memory.GetEntryPoint<void (*)(char)>(entry_point);
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(*comment_function)('A');
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(*comment_function)('B');
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(*comment_function)('F');
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(*comment_function)('E');
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(*comment_function)('a');
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(*comment_function)('G');
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#endif
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return 0;
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}
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#endif // TEST_EXAMPLES
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