1 // Copyright 2013, ARM Limited
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions are met:
6 //
7 // * Redistributions of source code must retain the above copyright notice,
8 // this list of conditions and the following disclaimer.
9 // * Redistributions in binary form must reproduce the above copyright notice,
10 // this list of conditions and the following disclaimer in the documentation
11 // and/or other materials provided with the distribution.
12 // * Neither the name of ARM Limited nor the names of its contributors may be
13 // used to endorse or promote products derived from this software without
14 // specific prior written permission.
15 //
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS CONTRIBUTORS "AS IS" AND
17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
20 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
27 #include "a64/simulator-a64.h"
28 #include "a64/macro-assembler-a64.h"
29
30 #define BUF_SIZE (4096)
31 #define __ masm->
32
33 using namespace vixl;
34
GenerateDemoFunction(MacroAssembler * masm)35 void GenerateDemoFunction(MacroAssembler *masm) {
36 // uint64_t demo_function(uint64_t x)
37 __ Ldr(x1, 0x1122334455667788);
38 __ And(x0, x0, x1);
39 __ Ret();
40 }
41
42
43 #ifndef TEST_EXAMPLES
main()44 int main() {
45 byte assm_buf[BUF_SIZE];
46 MacroAssembler masm(assm_buf, BUF_SIZE);
47 Decoder decoder;
48 Simulator simulator(&decoder);
49
50 Label demo_function;
51 masm.Bind(&demo_function);
52 GenerateDemoFunction(&masm);
53 masm.FinalizeCode();
54
55 simulator.set_xreg(0, 0x8899aabbccddeeff);
56 simulator.RunFrom(demo_function.target());
57 printf("x0 = %" PRIx64 "\n", simulator.xreg(0));
58
59 return 0;
60 }
61 #endif
62