VIXL Release 1.0
Refer to the README.md and LICENCE files for details.
diff --git a/examples/sum-array.cc b/examples/sum-array.cc
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+// Copyright 2013, 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 ARRAY_SIZE(Array) (sizeof(Array) / sizeof((Array)[0]))
+#define BUF_SIZE (4096)
+#define __ masm->
+
+void GenerateSumArray(MacroAssembler* masm) {
+ // uint32_t sum_array(uint8_t* array, uint32_t size)
+ // Argument locations:
+ // array (pointer) -> x0
+ // size -> x1
+
+ Label loop, end;
+
+ __ Mov(x2, x0);
+ __ Mov(w0, 0);
+
+ // There's nothing to do if the array is empty.
+ __ Cbz(w1, &end);
+
+ // Go through the array and sum the elements.
+ __ Bind(&loop);
+
+ __ Ldrb(w3, MemOperand(x2, 1, PostIndex)); // w3 = *(x2++)
+ __ Add(w0, w0, w3);
+
+ __ Sub(w1, w1, 1);
+ __ Cbnz(w1, &loop);
+
+ __ Bind(&end);
+ __ Ret();
+}
+
+
+#ifndef TEST_EXAMPLES
+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 sum_array;
+ masm.Bind(&sum_array);
+ GenerateSumArray(&masm);
+ masm.FinalizeCode();
+
+ // Run the example function.
+ uint8_t data[] = { 2, 45, 63, 7, 245, 38 };
+ uintptr_t data_addr = reinterpret_cast<uintptr_t>(data);
+ simulator.set_xreg(0, data_addr);
+ simulator.set_xreg(1, ARRAY_SIZE(data));
+ simulator.RunFrom(sum_array.target());
+
+ unsigned int i;
+ for (i = 0; i < ARRAY_SIZE(data) - 1; ++i) {
+ printf("%d + ", data[i]);
+ }
+ printf("%d = %d\n", data[i], simulator.wreg(0));
+
+ return 0;
+}
+#endif