2 MITSUBISHI Electric MULTI8 Emulator 'EmuLTI8'
4 Author : Takeda.Toshiya
13 #define SET_BANK(s, e, w, r) { \
14 int sb = (s) >> 12, eb = (e) >> 12; \
15 for(int i = sb; i <= eb; i++) { \
19 wbank[i] = (w) + 0x1000 * (i - sb); \
24 rbank[i] = (r) + 0x1000 * (i - sb); \
29 void MEMORY::initialize()
32 memset(rom, 0xff, sizeof(rom));
33 memset(fdc, 0xff, sizeof(fdc));
34 memset(ram0, 0, sizeof(ram0));
35 memset(ram1, 0, sizeof(ram1));
36 memset(vram, 0, sizeof(vram));
37 memset(rdmy, 0xff, sizeof(rdmy));
40 FILEIO* fio = new FILEIO();
41 if(fio->Fopen(create_local_path(_T("BASIC.ROM")), FILEIO_READ_BINARY)) {
42 fio->Fread(rom, sizeof(rom), 1);
45 if(fio->Fopen(create_local_path(_T("FDC.ROM")), FILEIO_READ_BINARY)) {
46 fio->Fread(fdc, sizeof(fdc), 1);
49 // 8255 Port A, bit1 = 0 (fdc rom exists)
50 d_pio->write_signal(SIG_I8255_PORT_A, 0, 2);
52 // 8255 Port A, bit1 = 1 (fdc rom does not exist)
53 d_pio->write_signal(SIG_I8255_PORT_A, 2, 2);
65 void MEMORY::write_data8(uint32_t addr, uint32_t data)
68 if((addr & 0xc000) == 0x8000 && (map1 & 0x10)) {
69 uint32_t ptr = addr & 0x3fff;
72 vram[0x0000 | ptr] = data;
75 vram[0x4000 | ptr] = data;
78 vram[0x8000 | ptr] = data;
81 vram[0xc000 | ptr] = data;
85 wbank[addr >> 12][addr & 0xfff] = data;
88 uint32_t MEMORY::read_data8(uint32_t addr)
91 if((addr & 0xc000) == 0x8000 && (map1 & 0x10)) {
92 uint32_t ptr = addr & 0x3fff;
96 val &= vram[0x0000 | ptr];
99 val &= vram[0x4000 | ptr];
102 val &= vram[0x8000 | ptr];
105 val &= vram[0xc000 | ptr];
109 return rbank[addr >> 12][addr & 0xfff];
112 void MEMORY::write_io8(uint32_t addr, uint32_t data)
118 void MEMORY::write_signal(int id, uint32_t data, uint32_t mask)
120 if(id == SIG_MEMORY_I8255_C) {
126 void MEMORY::update_map()
129 SET_BANK(0x0000, 0x7fff, ram0, ram0);
130 SET_BANK(0x8000, 0xffff, ram1, ram1);
132 SET_BANK(0x0000, 0x7fff, wdmy, rom);
134 SET_BANK(0x6000, 0x6fff, wdmy, fdc);
136 SET_BANK(0x8000, 0xffff, ram1, ram1);
140 #define STATE_VERSION 1
142 #include "../../statesub.h"
144 void MEMORY::decl_state()
146 enter_decl_state(STATE_VERSION);
148 DECL_STATE_ENTRY_1D_ARRAY(ram0, sizeof(ram0));
149 DECL_STATE_ENTRY_1D_ARRAY(ram1, sizeof(ram1));
150 DECL_STATE_ENTRY_1D_ARRAY(vram, sizeof(vram));
151 DECL_STATE_ENTRY_UINT8(map1);
152 DECL_STATE_ENTRY_UINT8(map2);
157 void MEMORY::save_state(FILEIO* state_fio)
159 if(state_entry != NULL) {
160 state_entry->save_state(state_fio);
162 // state_fio->FputUint32(STATE_VERSION);
163 // state_fio->FputInt32(this_device_id);
165 // state_fio->Fwrite(ram0, sizeof(ram0), 1);
166 // state_fio->Fwrite(ram1, sizeof(ram1), 1);
167 // state_fio->Fwrite(vram, sizeof(vram), 1);
168 // state_fio->FputUint8(map1);
169 // state_fio->FputUint8(map2);
172 bool MEMORY::load_state(FILEIO* state_fio)
175 if(state_entry != NULL) {
176 mb = state_entry->load_state(state_fio);
181 // if(state_fio->FgetUint32() != STATE_VERSION) {
184 // if(state_fio->FgetInt32() != this_device_id) {
187 // state_fio->Fread(ram0, sizeof(ram0), 1);
188 // state_fio->Fread(ram1, sizeof(ram1), 1);
189 // state_fio->Fread(vram, sizeof(vram), 1);
190 // map1 = state_fio->FgetUint8();
191 // map2 = state_fio->FgetUint8();
198 bool MEMORY::process_state(FILEIO* state_fio, bool loading)
200 if(!state_fio->StateCheckUint32(STATE_VERSION)) {
203 if(!state_fio->StateCheckInt32(this_device_id)) {
206 state_fio->StateBuffer(ram0, sizeof(ram0), 1);
207 state_fio->StateBuffer(ram1, sizeof(ram1), 1);
208 state_fio->StateBuffer(vram, sizeof(vram), 1);
209 state_fio->StateUint8(map1);
210 state_fio->StateUint8(map2);