Example #1
0
static void
write_header( libspectrum_byte **buffer, libspectrum_byte **ptr,
	      size_t *length, libspectrum_snap *snap )
{
  libspectrum_make_room( buffer, LIBSPECTRUM_SNA_HEADER_LENGTH, ptr, length );

  *(*ptr)++ = libspectrum_snap_i ( snap );
  libspectrum_write_word( ptr, libspectrum_snap_hl_( snap ) );
  libspectrum_write_word( ptr, libspectrum_snap_de_( snap ) );
  libspectrum_write_word( ptr, libspectrum_snap_bc_( snap ) );
  *(*ptr)++ = libspectrum_snap_f_( snap );
  *(*ptr)++ = libspectrum_snap_a_( snap );
  libspectrum_write_word( ptr, libspectrum_snap_hl ( snap ) );
  libspectrum_write_word( ptr, libspectrum_snap_de ( snap ) );
  libspectrum_write_word( ptr, libspectrum_snap_bc ( snap ) );
  libspectrum_write_word( ptr, libspectrum_snap_iy ( snap ) );
  libspectrum_write_word( ptr, libspectrum_snap_ix ( snap ) );

  *(*ptr)++ = libspectrum_snap_iff2( snap ) ? 0x04 : 0x00;

  *(*ptr)++ = libspectrum_snap_r ( snap );
  *(*ptr)++ = libspectrum_snap_f ( snap );
  *(*ptr)++ = libspectrum_snap_a ( snap );

  libspectrum_write_word( ptr, libspectrum_snap_sp ( snap ) );

  *(*ptr)++ = libspectrum_snap_im( snap );
  *(*ptr)++ = libspectrum_snap_out_ula( snap ) & 0x07;
}
Example #2
0
/* Routines for transferring the Z80 contents to and from snapshots */
static void
z80_from_snapshot( libspectrum_snap *snap )
{
  A  = libspectrum_snap_a ( snap ); F  = libspectrum_snap_f ( snap );
  A_ = libspectrum_snap_a_( snap ); F_ = libspectrum_snap_f_( snap );

  BC  = libspectrum_snap_bc ( snap ); DE  = libspectrum_snap_de ( snap );
  HL  = libspectrum_snap_hl ( snap ); BC_ = libspectrum_snap_bc_( snap );
  DE_ = libspectrum_snap_de_( snap ); HL_ = libspectrum_snap_hl_( snap );

  IX = libspectrum_snap_ix( snap ); IY = libspectrum_snap_iy( snap );
  I  = libspectrum_snap_i ( snap ); R = R7 = libspectrum_snap_r( snap );
  SP = libspectrum_snap_sp( snap ); PC = libspectrum_snap_pc( snap );

  IFF1 = libspectrum_snap_iff1( snap ); IFF2 = libspectrum_snap_iff2( snap );
  IM = libspectrum_snap_im( snap );

  z80.halted = libspectrum_snap_halted( snap );

  z80.interrupts_enabled_at =
    libspectrum_snap_last_instruction_ei( snap ) ? z80_tstates : -1;
}