source/src/vm/fm7/kanjirom.cpp

   1 /*
   2  * Common source code project -> FM-7/77/AV -> Kanji rom
   3  * (C) 2015 K.Ohta <whatisthis.sowhat _at_ gmail.com>
   4  * License: GPLv2
   5  * History:
   6  *  Feb 11, 2015 : Initial
   7  */
   8
   9 #include "../../fileio.h"
  10 #include "kanjirom.h"
  11
  12 KANJIROM::KANJIROM(VM *parent_vm, EMU* parent_emu, bool type_2std): DEVICE(parent_vm, parent_emu)
  13 {
  14         FILEIO *fio;
  15         read_ok = false;
  16
  17         fio = new FILEIO();
  18         memset(data_table, 0xff, 0x20000);
  19         //      read_table[0].memory = data_table;
  20
  21         if(type_2std) {
  22                 class2 = true;
  23                 if(fio->Fopen(emu->bios_path("KANJI2.ROM"), FILEIO_READ_BINARY)) {
  24                   fio->Fread(data_table, 0x20000, 1);
  25                         fio->Fclose();
  26                         read_ok = true;
  27                 }
  28         } else {
  29                 class2 = false;
  30                 if(fio->Fopen(emu->bios_path("KANJI1.ROM"), FILEIO_READ_BINARY)) {
  31                   fio->Fread(data_table, 0x20000, 1);
  32                         fio->Fclose();
  33                         read_ok = true;
  34                 } else if(fio->Fopen(emu->bios_path("KANJI.ROM"), FILEIO_READ_BINARY)) {
  35                   fio->Fread(data_table, 0x20000, 1);
  36                         fio->Fclose();
  37                         read_ok = true;
  38                 }
  39         }
  40         delete fio;
  41         return;
  42 }
  43
  44 void KANJIROM::write_data8(uint32 addr, uint32 data)
  45 {
  46         return;
  47 }
  48
  49 uint32 KANJIROM::read_data8(uint32 addr)
  50 {
  51         return data_table[addr & 0x1ffff];
  52 }
  53
  54 bool KANJIROM::get_readstat(void)
  55 {
  56         return read_ok;
  57 }
  58
  59 void KANJIROM::release()
  60 {
  61 }
  62
  63 #define STATE_VERSION 1
  64 void KANJIROM::save_state(FILEIO *state_fio)
  65 {
  66         state_fio->FputUint32(STATE_VERSION);
  67         state_fio->FputInt32(this_device_id);
  68
  69         state_fio->FputBool(class2);
  70         state_fio->FputBool(read_ok);
  71         state_fio->Fwrite(data_table, sizeof(data_table), 1);
  72 }
  73
  74 bool KANJIROM::load_state(FILEIO *state_fio)
  75 {
  76         uint32 version;
  77         version = state_fio->FgetUint32();
  78         if(this_device_id != state_fio->FgetInt32()) return false;
  79
  80         if(version >= 1) {
  81                 class2 = state_fio->FgetBool();
  82                 read_ok = state_fio->FgetBool();
  83                 state_fio->Fread(data_table, sizeof(data_table), 1);
  84                 if(version == 1) return true;
  85         }
  86         return false;
  87 }
  88