public static bool IsVS2015RuntimeInstalled()
{
try
{
// Super ghetto way of detecting if the runtime is installed is simply by calling
// any function that will cause a C++ DLL to be loaded.
NesApu.GetAudioExpansions(0);
return(true);
}
catch
{
return(false);
}
}
private void WriteN163Register(int reg, int data)
{
// HACK : There are conflicts between N163 registers and S5B register, a N163 addr write
// can be interpreted as a S5B data write. To prevent this, we select a dummy register
// for S5B so that the write is discarded.
//
// N163:
// f800-ffff (addr)
// 4800-4fff (data)
// S5B:
// c000-e000 (addr)
// f000-ffff (data)
if ((NesApu.GetAudioExpansions(apuIdx) & NesApu.APU_EXPANSION_MASK_SUNSOFT) != 0)
{
WriteRegister(NesApu.S5B_ADDR, NesApu.S5B_REG_IO_A);
}
WriteRegister(NesApu.N163_ADDR, reg);
WriteRegister(NesApu.N163_DATA, data);
}