#include <stdint.h>
#include "smpc.h"
#include "scsp.h"

#include "../common/copy.hpp"

extern void * _sine_start __asm("_binary_scsp_sine_44100_s16be_1ch_1sec_pcm_start");

void main()
{
  while ((smpc.reg.SF & 1) != 0);
  smpc.reg.SF = 1;
  smpc.reg.COMREG = COMREG__SNDON;
  while (smpc.reg.OREG[31].val != 0b00000110);

  for (long i = 0; i < 807; i++) { asm volatile ("nop"); }   // wait for (way) more than 30µs

  scsp.reg.ctrl.MIXER = MIXER__MEM4MB | MIXER__MVOL(0xf);

  const uint32_t * buf = reinterpret_cast<uint32_t*>(&_sine_start);
  copy<uint32_t>(&scsp.ram.u32[0], buf, 44100 * 2);

  scsp_slot& slot = scsp.reg.slot[0];
  // start address (bytes)
  slot.SA = SA__KYONB | SA__LPCTL__NORMAL | SA__SA(0); // kx kb sbctl[1:0] ssctl[1:0] lpctl[1:0] 8b sa[19:0]
  slot.LSA = 0; // loop start address (samples)
  slot.LEA = 44100; // loop end address (samples)
  slot.EG = EG__EGHOLD; // d2r d1r ho ar krs dl rr
  slot.FM = 0; // stwinh sdir tl mdl mdxsl mdysl
  slot.PITCH = PITCH__OCT(0) | PITCH__FNS(0); // oct fns
  slot.LFO = 0; // lfof plfows
  slot.MIXER = MIXER__DISDL(0b101); // disdl dipan efsdl efpan

  slot.LOOP |= LOOP__KYONEX;
}

extern "C"
void start(void)
{
  main();
  while (1);
}