/*
* data_adjust - アイテムの整理
*/
void data_adjust(DATA_INFO **root)
{
DATA_INFO *di = *root;
DATA_INFO *wk_di;
while (di != NULL) {
if (di->type == TYPE_ITEM && di->child == NULL) {
wk_di = di->next;
// 削除
data_delete(root, di, TRUE);
di = wk_di;
} else {
if (di->type == TYPE_FOLDER) {
data_adjust(&di->child);
}
di = di->next;
}
}
}
void SPC7110::mmio_write(unsigned addr, uint8 data) {
addr &= 0xffff;
switch(addr) {
//==================
//decompression unit
//==================
case 0x4801: r4801 = data; break;
case 0x4802: r4802 = data; break;
case 0x4803: r4803 = data; break;
case 0x4804: r4804 = data; break;
case 0x4805: r4805 = data; break;
case 0x4806: {
r4806 = data;
unsigned table = (r4801 + (r4802 << 8) + (r4803 << 16));
unsigned index = (r4804 << 2);
unsigned length = (r4809 + (r480a << 8));
unsigned addr = datarom_addr(table + index);
unsigned mode = (cartridge.rom.read(addr + 0));
unsigned offset = (cartridge.rom.read(addr + 1) << 16)
+ (cartridge.rom.read(addr + 2) << 8)
+ (cartridge.rom.read(addr + 3) << 0);
decomp.init(mode, offset, (r4805 + (r4806 << 8)) << mode);
r480c = 0x80;
} break;
case 0x4807: r4807 = data; break;
case 0x4808: r4808 = data; break;
case 0x4809: r4809 = data; break;
case 0x480a: r480a = data; break;
case 0x480b: r480b = data; break;
//==============
//data port unit
//==============
case 0x4811: r4811 = data; r481x |= 0x01; break;
case 0x4812: r4812 = data; r481x |= 0x02; break;
case 0x4813: r4813 = data; r481x |= 0x04; break;
case 0x4814: {
r4814 = data;
r4814_latch = true;
if(!r4815_latch) break;
if(!(r4818 & 2)) break;
if(r4818 & 0x10) break;
if((r4818 & 0x60) == 0x20) {
unsigned increment = data_adjust() & 0xff;
if(r4818 & 8) increment = (int8)increment; //8-bit sign extend
set_data_pointer(data_pointer() + increment);
} else if((r4818 & 0x60) == 0x40) {
unsigned increment = data_adjust();
if(r4818 & 8) increment = (int16)increment; //16-bit sign extend
set_data_pointer(data_pointer() + increment);
}
} break;
case 0x4815: {
r4815 = data;
r4815_latch = true;
if(!r4814_latch) break;
if(!(r4818 & 2)) break;
if(r4818 & 0x10) break;
if((r4818 & 0x60) == 0x20) {
unsigned increment = data_adjust() & 0xff;
if(r4818 & 8) increment = (int8)increment; //8-bit sign extend
set_data_pointer(data_pointer() + increment);
} else if((r4818 & 0x60) == 0x40) {
unsigned increment = data_adjust();
if(r4818 & 8) increment = (int16)increment; //16-bit sign extend
set_data_pointer(data_pointer() + increment);
}
} break;
case 0x4816: r4816 = data; break;
case 0x4817: r4817 = data; break;
case 0x4818: {
if(r481x != 0x07) break;
r4818 = data;
r4814_latch = r4815_latch = false;
} break;
//=========
//math unit
//=========
case 0x4820: r4820 = data; break;
case 0x4821: r4821 = data; break;
case 0x4822: r4822 = data; break;
case 0x4823: r4823 = data; break;
case 0x4824: r4824 = data; break;
case 0x4825: {
r4825 = data;
if(r482e & 1) {
//signed 16-bit x 16-bit multiplication
int16 r0 = (int16)(r4824 + (r4825 << 8));
int16 r1 = (int16)(r4820 + (r4821 << 8));
signed result = r0 * r1;
r4828 = result;
r4829 = result >> 8;
r482a = result >> 16;
r482b = result >> 24;
} else {
//unsigned 16-bit x 16-bit multiplication
uint16 r0 = (uint16)(r4824 + (r4825 << 8));
uint16 r1 = (uint16)(r4820 + (r4821 << 8));
unsigned result = r0 * r1;
r4828 = result;
r4829 = result >> 8;
r482a = result >> 16;
r482b = result >> 24;
}
r482f = 0x80;
} break;
uint8 SPC7110::mmio_read(unsigned addr) {
addr &= 0xffff;
switch(addr) {
//==================
//decompression unit
//==================
case 0x4800: {
uint16 counter = (r4809 + (r480a << 8));
counter--;
r4809 = counter;
r480a = counter >> 8;
return decomp.read();
}
case 0x4801: return r4801;
case 0x4802: return r4802;
case 0x4803: return r4803;
case 0x4804: return r4804;
case 0x4805: return r4805;
case 0x4806: return r4806;
case 0x4807: return r4807;
case 0x4808: return r4808;
case 0x4809: return r4809;
case 0x480a: return r480a;
case 0x480b: return r480b;
case 0x480c: {
uint8 status = r480c;
r480c &= 0x7f;
return status;
}
//==============
//data port unit
//==============
case 0x4810: {
if(r481x != 0x07) return 0x00;
unsigned addr = data_pointer();
unsigned adjust = data_adjust();
if(r4818 & 8) adjust = (int16)adjust; //16-bit sign extend
unsigned adjustaddr = addr;
if(r4818 & 2) {
adjustaddr += adjust;
set_data_adjust(adjust + 1);
}
uint8 data = cartridge.rom.read(datarom_addr(adjustaddr));
if(!(r4818 & 2)) {
unsigned increment = (r4818 & 1) ? data_increment() : 1;
if(r4818 & 4) increment = (int16)increment; //16-bit sign extend
if((r4818 & 16) == 0) {
set_data_pointer(addr + increment);
} else {
set_data_adjust(adjust + increment);
}
}
return data;
}
case 0x4811: return r4811;
case 0x4812: return r4812;
case 0x4813: return r4813;
case 0x4814: return r4814;
case 0x4815: return r4815;
case 0x4816: return r4816;
case 0x4817: return r4817;
case 0x4818: return r4818;
case 0x481a: {
if(r481x != 0x07) return 0x00;
unsigned addr = data_pointer();
unsigned adjust = data_adjust();
if(r4818 & 8) adjust = (int16)adjust; //16-bit sign extend
uint8 data = cartridge.rom.read(datarom_addr(addr + adjust));
if((r4818 & 0x60) == 0x60) {
if((r4818 & 16) == 0) {
set_data_pointer(addr + adjust);
} else {
set_data_adjust(adjust + adjust);
}
}
return data;
}
//=========
//math unit
//=========
case 0x4820: return r4820;
case 0x4821: return r4821;
case 0x4822: return r4822;
case 0x4823: return r4823;
case 0x4824: return r4824;
case 0x4825: return r4825;
case 0x4826: return r4826;
case 0x4827: return r4827;
case 0x4828: return r4828;
case 0x4829: return r4829;
case 0x482a: return r482a;
case 0x482b: return r482b;
case 0x482c: return r482c;
case 0x482d: return r482d;
case 0x482e: return r482e;
case 0x482f: {
uint8 status = r482f;
r482f &= 0x7f;
return status;
}
//===================
//memory mapping unit
//===================
case 0x4830: return r4830;
case 0x4831: return r4831;
case 0x4832: return r4832;
case 0x4833: return r4833;
case 0x4834: return r4834;
//====================
//real-time clock unit
//====================
case 0x4840: return r4840;
case 0x4841: {
if(rtc_state == RTCS_Inactive || rtc_state == RTCS_ModeSelect) return 0x00;
r4842 = 0x80;
uint8 data = rtc[rtc_index];
rtc_index = (rtc_index + 1) & 15;
return data;
}
case 0x4842: {
uint8 status = r4842;
r4842 &= 0x7f;
return status;
}
}
return cpu.regs.mdr;
}
