1// Copyright 2013, ARM Limited
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26
27#include "examples.h"
28
29#define BUF_SIZE (4096)
30#define __ masm->
31
32void GenerateAdd3Double(MacroAssembler* masm) {
33  // double add3_double(double x, double y, double z)
34  //  Argument locations:
35  //    x -> d0
36  //    y -> d1
37  //    z -> d2
38  __ Fadd(d0, d0, d1);    // d0 <- x + y
39  __ Fadd(d0, d0, d2);    // d0 <- d0 + z
40
41  // The return value is already in d0.
42  __ Ret();
43}
44
45
46#ifndef TEST_EXAMPLES
47int main(void) {
48  // Create and initialize the assembler and the simulator.
49  byte assm_buf[BUF_SIZE];
50  MacroAssembler masm(assm_buf, BUF_SIZE);
51  Decoder decoder;
52  Simulator simulator(&decoder);
53
54  // Generate the code for the example function.
55  Label add3_double;
56  masm.Bind(&add3_double);
57  GenerateAdd3Double(&masm);
58  masm.FinalizeCode();
59
60  // Run the example function.
61  double a = 498.36547;
62  double b = 23.369;
63  double c = 7964.697954;
64  simulator.set_dreg(0, a);
65  simulator.set_dreg(1, b);
66  simulator.set_dreg(2, c);
67  simulator.RunFrom(add3_double.target());
68  printf("%f + %f + %f = %f\n", a, b, c, simulator.dreg(0));
69
70  return 0;
71}
72#endif
73