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 "vm.h"
  10 #include "../../fileio.h"
  11 #include "emu.h"
  12 #include "fm7_common.h"
  13 #include "kanjirom.h"
  14
  15 namespace FM7 {
  16
  17 KANJIROM::KANJIROM(VM_TEMPLATE* parent_vm, EMU* parent_emu, bool type_2std): DEVICE(parent_vm, parent_emu)
  18 {
  19         FILEIO *fio;
  20         read_ok = false;
  21
  22         fio = new FILEIO();
  23         memset(data_table, 0xff, 0x20000);
  24         //      read_table[0].memory = data_table;
  25         if(type_2std) {
  26                 class2 = true;
  27                 if(fio->Fopen(create_local_path(_T(ROM_KANJI_CLASS2)), FILEIO_READ_BINARY)) {
  28                   fio->Fread(data_table, 0x20000, 1);
  29                         fio->Fclose();
  30                         read_ok = true;
  31                 }
  32         } else {
  33                 class2 = false;
  34                 if(fio->Fopen(create_local_path(_T(ROM_KANJI_CLASS1)), FILEIO_READ_BINARY)) {
  35                   fio->Fread(data_table, 0x20000, 1);
  36                         fio->Fclose();
  37                         read_ok = true;
  38                 } else if(fio->Fopen(create_local_path(_T(ROM_KANJI_CLASS1_FALLBACK)), FILEIO_READ_BINARY)) {
  39                   fio->Fread(data_table, 0x20000, 1);
  40                         fio->Fclose();
  41                         read_ok = true;
  42                 }
  43
  44         }
  45         if(class2) {
  46                 set_device_name(_T("FM7_KANJI_CLASS2"));
  47         } else {
  48                 set_device_name(_T("FM7_KANJI_CLASS1"));
  49         }
  50         if(class2) {
  51                 set_device_name(_T("FM7_KANJI_CLASS2"));
  52         } else {
  53                 set_device_name(_T("FM7_KANJI_CLASS1"));
  54         }
  55         this->out_debug_log(_T("KANJIROM READ %s."), read_ok ? "OK" : "FAILED");
  56
  57         kanjiaddr.d = 0;
  58         delete fio;
  59         return;
  60 }
  61
  62 KANJIROM::~KANJIROM()
  63 {
  64 }
  65
  66 void KANJIROM::reset(void)
  67 {
  68         kanjiaddr.d = 0;
  69 }
  70
  71
  72 void KANJIROM::write_data8(uint32_t addr, uint32_t data)
  73 {
  74         switch(addr) {
  75         case KANJIROM_ADDR_HI:
  76                 kanjiaddr.b.h = data & 0xff;
  77                 break;
  78         case KANJIROM_ADDR_LO:
  79                 kanjiaddr.b.l = data & 0xff;
  80                 break;
  81         }
  82         return;
  83 }
  84
  85 uint32_t KANJIROM::read_data8(uint32_t addr)
  86 {
  87         if(addr == KANJIROM_DATA_HI) {
  88                 return data_table[(kanjiaddr.d << 1) & 0x1ffff];
  89         } else if(addr == KANJIROM_DATA_LO) {
  90                 return data_table[((kanjiaddr.d << 1) & 0x1ffff) + 1];
  91         } else if(addr == KANJIROM_READSTAT) {
  92                 return (read_ok) ? 0xffffffff : 0x00000000;
  93         } else if((addr >= KANJIROM_DIRECTADDR) && (addr < (KANJIROM_DIRECTADDR + 0x20000))) {
  94                 return data_table[addr - KANJIROM_DIRECTADDR];
  95         }
  96         return 0x00000000;
  97 }
  98
  99 bool KANJIROM::get_readstat(void)
 100 {
 101         return read_ok;
 102 }
 103
 104 void KANJIROM::release()
 105 {
 106 }
 107
 108 #define STATE_VERSION 5
 109
 110 bool KANJIROM::process_state(FILEIO *state_fio, bool loading)
 111 {
 112         if(!state_fio->StateCheckUint32(STATE_VERSION)) {
 113                 return false;
 114         }
 115         if(!state_fio->StateCheckInt32(this_device_id)) {
 116                 return false;
 117         }
 118
 119         state_fio->StateBool(class2);
 120         state_fio->StateBool(read_ok);
 121         state_fio->StateBuffer(data_table, sizeof(data_table), 1);
 122         state_fio->StateUint32(kanjiaddr.d);
 123         if(loading) {
 124                 kanjiaddr.w.h = 0;
 125         }
 126         return true;
 127 }
 128
 129 }