source/src/vm/phc25/system.cpp

   1 /*
   2         SANYO PHC-25 Emulator 'ePHC-25'
   3         SEIKO MAP-1010 Emulator 'eMAP-1010'
   4
   5         Author : Takeda.Toshiya
   6         Date   : 2010.08.03-
   7
   8         [ system port ]
   9 */
  10
  11 #include "./system.h"
  12 #include "../datarec.h"
  13 #include "../mc6847.h"
  14
  15 void PHC25_SYSTEM::initialize()
  16 {
  17         sysport = 0;
  18 }
  19
  20 void PHC25_SYSTEM::reset()
  21 {
  22         d_vdp->write_signal(SIG_MC6847_INTEXT, 1, 1);
  23 }
  24
  25 void PHC25_SYSTEM::write_io8(uint32_t addr, uint32_t data)
  26 {
  27         d_drec->write_signal(SIG_DATAREC_MIC, data, 0x01);
  28         d_drec->write_signal(SIG_DATAREC_REMOTE, ~data, 0x02);
  29         // bit2 : kana lock led ???
  30         // bit3 : printer strobe
  31         d_vdp->write_signal(SIG_MC6847_GM, (data & 0x20) ? 7 : 6, 7);
  32         d_vdp->write_signal(SIG_MC6847_CSS, data, 0x40);
  33         d_vdp->write_signal(SIG_MC6847_AG, data, 0x80);
  34 }
  35
  36 uint32_t PHC25_SYSTEM::read_io8(uint32_t addr)
  37 {
  38         return sysport;
  39 }
  40
  41 void PHC25_SYSTEM::write_signal(int id, uint32_t data, uint32_t mask)
  42 {
  43         sysport = (sysport & ~mask) | (data & mask);
  44 }
  45
  46 #define STATE_VERSION   1
  47
  48 #include "../../statesub.h"
  49
  50 void PHC25_SYSTEM::decl_state()
  51 {
  52         enter_decl_state(STATE_VERSION);
  53
  54         DECL_STATE_ENTRY_UINT8(sysport);
  55
  56         leave_decl_state();
  57 }
  58
  59 void PHC25_SYSTEM::save_state(FILEIO* state_fio)
  60 {
  61         if(state_entry != NULL) {
  62                 state_entry->save_state(state_fio);
  63         }
  64 //      state_fio->FputUint32(STATE_VERSION);
  65 //      state_fio->FputInt32(this_device_id);
  66
  67 //      state_fio->FputUint8(sysport);
  68 }
  69
  70 bool PHC25_SYSTEM::load_state(FILEIO* state_fio)
  71 {
  72         bool mb = false;
  73         if(state_entry != NULL) {
  74                 mb = state_entry->load_state(state_fio);
  75         }
  76         if(!mb) {
  77                 return false;
  78         }
  79 //      if(state_fio->FgetUint32() != STATE_VERSION) {
  80 //              return false;
  81 //      }
  82 //      if(state_fio->FgetInt32() != this_device_id) {
  83 //              return false;
  84 //      }
  85 //      sysport = state_fio->FgetUint8();
  86         return true;
  87 }
  88
  89 bool PHC25_SYSTEM::process_state(FILEIO* state_fio, bool loading)
  90 {
  91         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
  92                 return false;
  93         }
  94         if(!state_fio->StateCheckInt32(this_device_id)) {
  95                 return false;
  96         }
  97         state_fio->StateUint8(sysport);
  98         return true;
  99 }