[pcsx_rearmed.git] / libpcsxcore / psxhw.c

/***************************************************************************
 *   Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team              *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
 ***************************************************************************/

/*
* Functions for PSX hardware control.
*/

#include "psxhw.h"
#include "psxevents.h"
#include "mdec.h"
#include "cdrom.h"
#include "gpu.h"

void psxHwReset() {
	memset(psxH, 0, 0x10000);

	mdecInit(); // initialize mdec decoder
	cdrReset();
	psxRcntInit();
	HW_GPU_STATUS = SWAP32(0x10802000);
}

void psxHwWriteIstat(u32 value)
{
	u32 stat = psxHu16(0x1070) & value;
	psxHu16ref(0x1070) = SWAPu16(stat);

	psxRegs.CP0.n.Cause &= ~0x400;
	if (stat & psxHu16(0x1074))
		psxRegs.CP0.n.Cause |= 0x400;
}

void psxHwWriteImask(u32 value)
{
	u32 stat = psxHu16(0x1070);
	psxHu16ref(0x1074) = SWAPu16(value);
	if (stat & value) {
		//if ((psxRegs.CP0.n.SR & 0x401) == 0x401)
		//	log_unhandled("irq on unmask @%08x\n", psxRegs.pc);
		set_event(PSXINT_NEWDRC_CHECK, 1);
	}
	psxRegs.CP0.n.Cause &= ~0x400;
	if (stat & value)
		psxRegs.CP0.n.Cause |= 0x400;
}

#define make_dma_func(n, abort_func) \
void psxHwWriteChcr##n(u32 value) \
{ \
	u32 old = SWAPu32(HW_DMA##n##_CHCR); \
	if (n == 6) { value &= 0x51000002; value |= 2; } \
	else        { value &= 0x71770703; } \
	if (value == old) \
		return; \
	if (old & 0x01000000) \
		log_unhandled("%u dma" #n " %08x -> %08x\n", psxRegs.cycle, old, value); \
	HW_DMA##n##_CHCR = SWAPu32(value); \
	if ((value ^ old) & 0x01000000) { \
		if (!(value & 0x01000000)) \
			abort_func; \
		else if (SWAPu32(HW_DMA_PCR) & (8u << (n * 4))) \
			psxDma##n(SWAPu32(HW_DMA##n##_MADR), SWAPu32(HW_DMA##n##_BCR), value); \
	} \
}

make_dma_func(0,)
make_dma_func(1,)
make_dma_func(2, psxAbortDma2())
make_dma_func(3,)
make_dma_func(4,)
make_dma_func(6,)

void psxHwWriteDmaIcr32(u32 value)
{
	u32 tmp = value & 0x00ff803f;
	tmp |= (SWAPu32(HW_DMA_ICR) & ~value) & 0x7f000000;
	if ((tmp & HW_DMA_ICR_GLOBAL_ENABLE && tmp & 0x7f000000)
	    || tmp & HW_DMA_ICR_BUS_ERROR) {
		if (!(SWAPu32(HW_DMA_ICR) & HW_DMA_ICR_IRQ_SENT))
			psxHu32ref(0x1070) |= SWAP32(8);
		tmp |= HW_DMA_ICR_IRQ_SENT;
	}
	HW_DMA_ICR = SWAPu32(tmp);
}

void psxHwWriteGpuSR(u32 value)
{
	u32 old_sr = HW_GPU_STATUS, new_sr;
	GPU_writeStatus(value);
	gpuSyncPluginSR();
	new_sr = HW_GPU_STATUS;
	// "The Next Tetris" seems to rely on the field order after enable
	if ((old_sr ^ new_sr) & new_sr & SWAP32(PSXGPU_ILACE))
		frame_counter |= 1;
}

u32 psxHwReadGpuSR(void)
{
	u32 v, c = psxRegs.cycle;

	// meh2, syncing for img bit, might want to avoid it..
	gpuSyncPluginSR();
	v = SWAP32(HW_GPU_STATUS);
	v |= ((s32)(psxRegs.gpuIdleAfter - c) >> 31) & PSXGPU_nBUSY;

	// XXX: because of large timeslices can't use hSyncCount, using rough
	// approximization instead. Perhaps better use hcounter code here or something.
	if (hSyncCount < 240 && (v & PSXGPU_ILACE_BITS) != PSXGPU_ILACE_BITS)
		v |= PSXGPU_LCF & (c << 20);
	return v;
}

u32 sio1ReadStat16(void)
{
	// Armored Core, F1 Link cable misdetection
	return 0xa0;
}

u8 psxHwRead8(u32 add) {
	u8 hard;

	switch (add & 0xffff) {
	case 0x1040: hard = sioRead8(); break;
	case 0x1800: hard = cdrRead0(); break;
	case 0x1801: hard = cdrRead1(); break;
	case 0x1802: hard = cdrRead2(); break;
	case 0x1803: hard = cdrRead3(); break;

	case 0x1041: case 0x1042: case 0x1043:
	case 0x1044: case 0x1045:
	case 0x1046: case 0x1047:
	case 0x1048: case 0x1049:
	case 0x104a: case 0x104b:
	case 0x104c: case 0x104d:
	case 0x104e: case 0x104f:
	case 0x1050: case 0x1051:
	case 0x1054: case 0x1055:
	case 0x1058: case 0x1059:
	case 0x105a: case 0x105b:
	case 0x105c: case 0x105d:
	case 0x1100: case 0x1101:
	case 0x1104: case 0x1105:
	case 0x1108: case 0x1109:
	case 0x1110: case 0x1111:
	case 0x1114: case 0x1115:
	case 0x1118: case 0x1119:
	case 0x1120: case 0x1121:
	case 0x1124: case 0x1125:
	case 0x1128: case 0x1129:
	case 0x1810: case 0x1811:
	case 0x1812: case 0x1813:
	case 0x1814: case 0x1815:
	case 0x1816: case 0x1817:
	case 0x1820: case 0x1821:
	case 0x1822: case 0x1823:
	case 0x1824: case 0x1825:
	case 0x1826: case 0x1827:
		log_unhandled("unhandled r8  %08x @%08x\n", add, psxRegs.pc);
		// falthrough
	default:
		if (0x1f801c00 <= add && add < 0x1f802000) {
			u16 val = SPU_readRegister(add & ~1, psxRegs.cycle);
			hard = (add & 1) ? val >> 8 : val;
			break;
		}
		hard = psxHu8(add);
	}

	//printf("r8  %08x       %02x @%08x\n", add, hard, psxRegs.pc);
	return hard;
}

u16 psxHwRead16(u32 add) {
	unsigned short hard;

	switch (add & 0xffff) {
	case 0x1040: hard = sioRead8(); break;
	case 0x1044: hard = sioReadStat16(); break;
	case 0x1048: hard = sioReadMode16(); break;
	case 0x104a: hard = sioReadCtrl16(); break;
	case 0x104e: hard = sioReadBaud16(); break;
	case 0x1054: hard = sio1ReadStat16(); break;
	case 0x1100: hard = psxRcntRcount0(); break;
	case 0x1104: hard = psxRcntRmode(0); break;
	case 0x1108: hard = psxRcntRtarget(0); break;
	case 0x1110: hard = psxRcntRcount1(); break;
	case 0x1114: hard = psxRcntRmode(1); break;
	case 0x1118: hard = psxRcntRtarget(1); break;
	case 0x1120: hard = psxRcntRcount2(); break;
	case 0x1124: hard = psxRcntRmode(2); break;
	case 0x1128: hard = psxRcntRtarget(2); break;

	case 0x1042:
	case 0x1046:
	case 0x104c:
	case 0x1050:
	case 0x1058:
	case 0x105a:
	case 0x105c:
	case 0x1800:
	case 0x1802:
	case 0x1810:
	case 0x1812:
	case 0x1814:
	case 0x1816:
	case 0x1820:
	case 0x1822:
	case 0x1824:
	case 0x1826:
		log_unhandled("unhandled r16 %08x @%08x\n", add, psxRegs.pc);
		// falthrough
	default:
		if (0x1f801c00 <= add && add < 0x1f802000) {
			hard = SPU_readRegister(add, psxRegs.cycle);
			break;
		}
		hard = psxHu16(add);
	}
	
	//printf("r16 %08x     %04x @%08x\n", add, hard, psxRegs.pc);
	return hard;
}

u32 psxHwRead32(u32 add) {
	u32 hard;

	switch (add & 0xffff) {
	case 0x1040: hard = sioRead8(); break;
	case 0x1044: hard = sioReadStat16(); break;
	case 0x1100: hard = psxRcntRcount0(); break;
	case 0x1104: hard = psxRcntRmode(0); break;
	case 0x1108: hard = psxRcntRtarget(0); break;
	case 0x1110: hard = psxRcntRcount1(); break;
	case 0x1114: hard = psxRcntRmode(1); break;
	case 0x1118: hard = psxRcntRtarget(1); break;
	case 0x1120: hard = psxRcntRcount2(); break;
	case 0x1124: hard = psxRcntRmode(2); break;
	case 0x1128: hard = psxRcntRtarget(2); break;
	case 0x1810: hard = GPU_readData(); break;
	case 0x1814: hard = psxHwReadGpuSR(); break;
	case 0x1820: hard = mdecRead0(); break;
	case 0x1824: hard = mdecRead1(); break;

	case 0x1048:
	case 0x104c:
	case 0x1050:
	case 0x1054:
	case 0x1058:
	case 0x105c:
	case 0x1800:
		log_unhandled("unhandled r32 %08x @%08x\n", add, psxRegs.pc);
		// falthrough
	default:
		if (0x1f801c00 <= add && add < 0x1f802000) {
			hard = SPU_readRegister(add, psxRegs.cycle);
			hard |= SPU_readRegister(add + 2, psxRegs.cycle) << 16;
			break;
		}
		hard = psxHu32(add);
	}
	//printf("r32 %08x %08x @%08x\n", add, hard, psxRegs.pc);
	return hard;
}

void psxHwWrite8(u32 add, u32 value) {
	switch (add & 0xffff) {
	case 0x1040: sioWrite8(value); return;
	case 0x10f6:
		// nocash documents it as forced w32, but still games use this?
		break;
	case 0x1800: cdrWrite0(value); return;
	case 0x1801: cdrWrite1(value); return;
	case 0x1802: cdrWrite2(value); return;
	case 0x1803: cdrWrite3(value); return;
	case 0x2041: break; // "POST (external 7 segment display)"

	default:
		if (0x1f801c00 <= add && add < 0x1f802000) {
			log_unhandled("spu w8 %02x @%08x\n", value, psxRegs.pc);
			if (!(add & 1))
				SPU_writeRegister(add, value, psxRegs.cycle);
			return;
		}
		else
			log_unhandled("unhandled w8  %08x %08x @%08x\n",
				add, value, psxRegs.pc);
	}
	psxHu8(add) = value;
}

void psxHwWrite16(u32 add, u32 value) {
	switch (add & 0xffff) {
	case 0x1040: sioWrite8(value); return;
	case 0x1044: sioWriteStat16(value); return;
	case 0x1048: sioWriteMode16(value); return;
	case 0x104a: sioWriteCtrl16(value); return;
	case 0x104e: sioWriteBaud16(value); return;
	case 0x1070: psxHwWriteIstat(value); return;
	case 0x1074: psxHwWriteImask(value); return;
	case 0x1100: psxRcntWcount(0, value); return;
	case 0x1104: psxRcntWmode(0, value); return;
	case 0x1108: psxRcntWtarget(0, value); return;
	case 0x1110: psxRcntWcount(1, value); return;
	case 0x1114: psxRcntWmode(1, value); return;
	case 0x1118: psxRcntWtarget(1, value); return;
	case 0x1120: psxRcntWcount(2, value); return;
	case 0x1124: psxRcntWmode(2, value); return;
	case 0x1128: psxRcntWtarget(2, value); return;

	// forced write32:
	case 0x1088: // DMA0 chcr (MDEC in DMA)
	case 0x108c: psxHwWriteChcr0(value); return;
	case 0x1098: // DMA1 chcr (MDEC out DMA)
	case 0x109c: psxHwWriteChcr1(value); return;
	case 0x10a8: // DMA2 chcr (GPU DMA)
	case 0x10ac: psxHwWriteChcr2(value); return;
	case 0x10b8: // DMA3 chcr (CDROM DMA)
	case 0x10bc: psxHwWriteChcr3(value); return;
	case 0x10c8: // DMA4 chcr (SPU DMA)
	case 0x10cc: psxHwWriteChcr4(value); return;
	case 0x10e8: // DMA6 chcr (OT clear)
	case 0x10ec: psxHwWriteChcr6(value); return;
	case 0x10f4: psxHwWriteDmaIcr32(value); return;

	// forced write32 with no immediate effect:
	case 0x1014:
	case 0x1060:
	case 0x1080:
	case 0x1090:
	case 0x10a0:
	case 0x10b0:
	case 0x10c0:
	case 0x10d0:
	case 0x10e0:
	case 0x10f0:
		psxHu32ref(add) = SWAPu32(value);
		return;

	case 0x1800:
	case 0x1802:
	case 0x1810:
	case 0x1812:
	case 0x1814:
	case 0x1816:
	case 0x1820:
	case 0x1822:
	case 0x1824:
	case 0x1826:
		log_unhandled("unhandled w16 %08x @%08x\n", add, psxRegs.pc);
		break;

	default:
		if (0x1f801c00 <= add && add < 0x1f802000) {
			SPU_writeRegister(add, value, psxRegs.cycle);
			return;
		}
		else if (0x1f801000 <= add && add < 0x1f801800)
			log_unhandled("unhandled w16 %08x %08x @%08x\n",
				add, value, psxRegs.pc);
	}
	psxHu16ref(add) = SWAPu16(value);
}

void psxHwWrite32(u32 add, u32 value) {
	switch (add & 0xffff) {
	case 0x1040: sioWrite8(value); return;
	case 0x1070: psxHwWriteIstat(value); return;
	case 0x1074: psxHwWriteImask(value); return;
	case 0x1088: // DMA0 chcr (MDEC in DMA)
	case 0x108c: psxHwWriteChcr0(value); return;
	case 0x1098: // DMA1 chcr (MDEC out DMA)
	case 0x109c: psxHwWriteChcr1(value); return;
	case 0x10a8: // DMA2 chcr (GPU DMA)
	case 0x10ac: psxHwWriteChcr2(value); return;
	case 0x10b8: // DMA3 chcr (CDROM DMA)
	case 0x10bc: psxHwWriteChcr3(value); return;
	case 0x10c8: // DMA4 chcr (SPU DMA)
	case 0x10cc: psxHwWriteChcr4(value); return;
	case 0x10e8: // DMA6 chcr (OT clear)
	case 0x10ec: psxHwWriteChcr6(value); return;
	case 0x10f4: psxHwWriteDmaIcr32(value); return;

	case 0x1810: GPU_writeData(value); return;
	case 0x1814: psxHwWriteGpuSR(value); return;
	case 0x1820: mdecWrite0(value); break;
	case 0x1824: mdecWrite1(value); break;

	case 0x1100: psxRcntWcount(0, value & 0xffff); return;
	case 0x1104: psxRcntWmode(0, value); return;
	case 0x1108: psxRcntWtarget(0, value & 0xffff); return;
	case 0x1110: psxRcntWcount(1, value & 0xffff); return;
	case 0x1114: psxRcntWmode(1, value); return;
	case 0x1118: psxRcntWtarget(1, value & 0xffff); return;
	case 0x1120: psxRcntWcount(2, value & 0xffff); return;
	case 0x1124: psxRcntWmode(2, value); return;
	case 0x1128: psxRcntWtarget(2, value & 0xffff); return;

	case 0x1044:
	case 0x1048:
	case 0x104c:
	case 0x1050:
	case 0x1054:
	case 0x1058:
	case 0x105c:
	case 0x1800:
		log_unhandled("unhandled w32 %08x %08x @%08x\n", add, value, psxRegs.pc);
		break;

	default:
		if (0x1f801c00 <= add && add < 0x1f802000) {
			SPU_writeRegister(add, value&0xffff, psxRegs.cycle);
			SPU_writeRegister(add + 2, value>>16, psxRegs.cycle);
			return;
		}
	}
	psxHu32ref(add) = SWAPu32(value);
}

int psxHwFreeze(void *f, int Mode) {
	return 0;
}
Commit	Line	Data
ef79bbde P	1	/***************************************************************************
	2	* Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team *
	3	* *
	4	* This program is free software; you can redistribute it and/or modify *
	5	* it under the terms of the GNU General Public License as published by *
	6	* the Free Software Foundation; either version 2 of the License, or *
	7	* (at your option) any later version. *
	8	* *
	9	* This program is distributed in the hope that it will be useful, *
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
	12	* GNU General Public License for more details. *
	13	* *
	14	* You should have received a copy of the GNU General Public License *
	15	* along with this program; if not, write to the *
	16	* Free Software Foundation, Inc., *
	17	* 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. *
	18	***************************************************************************/
	19
	20	/*
	21	* Functions for PSX hardware control.
	22	*/
	23
	24	#include "psxhw.h"
9a0a61d2	25	#include "psxevents.h"
ef79bbde P	26	#include "mdec.h"
ef79bbde P	27	#include "cdrom.h"
ddbaf678	28	#include "gpu.h"
ef79bbde P	29
ef79bbde P	30	void psxHwReset() {
ef79bbde P	31	memset(psxH, 0, 0x10000);
	32
	33	mdecInit(); // initialize mdec decoder
	34	cdrReset();
	35	psxRcntInit();
f8896d18	36	HW_GPU_STATUS = SWAP32(0x10802000);
ef79bbde P	37	}
ef79bbde P	38
a01b90c3	39	void psxHwWriteIstat(u32 value)
a01b90c3	40	{
6fb444d6	41	u32 stat = psxHu16(0x1070) & value;
a01b90c3	42	psxHu16ref(0x1070) = SWAPu16(stat);
	43
	44	psxRegs.CP0.n.Cause &= ~0x400;
	45	if (stat & psxHu16(0x1074))
	46	psxRegs.CP0.n.Cause \|= 0x400;
	47	}
	48
	49	void psxHwWriteImask(u32 value)
	50	{
	51	u32 stat = psxHu16(0x1070);
	52	psxHu16ref(0x1074) = SWAPu16(value);
6fb444d6	53	if (stat & value) {
a01b90c3	54	//if ((psxRegs.CP0.n.SR & 0x401) == 0x401)
a01b90c3	55	// log_unhandled("irq on unmask @%08x\n", psxRegs.pc);
9a0a61d2	56	set_event(PSXINT_NEWDRC_CHECK, 1);
a01b90c3	57	}
	58	psxRegs.CP0.n.Cause &= ~0x400;
	59	if (stat & value)
	60	psxRegs.CP0.n.Cause \|= 0x400;
	61	}
	62
0e067f55	63	#define make_dma_func(n, abort_func) \
20bfbac0	64	void psxHwWriteChcr##n(u32 value) \
20bfbac0	65	{ \
0e067f55	66	u32 old = SWAPu32(HW_DMA##n##_CHCR); \
	67	if (n == 6) { value &= 0x51000002; value \|= 2; } \
	68	else { value &= 0x71770703; } \
	69	if (value == old) \
	70	return; \
	71	if (old & 0x01000000) \
	72	log_unhandled("%u dma" #n " %08x -> %08x\n", psxRegs.cycle, old, value); \
20bfbac0	73	HW_DMA##n##_CHCR = SWAPu32(value); \
0e067f55	74	if ((value ^ old) & 0x01000000) { \
	75	if (!(value & 0x01000000)) \
	76	abort_func; \
	77	else if (SWAPu32(HW_DMA_PCR) & (8u << (n * 4))) \
	78	psxDma##n(SWAPu32(HW_DMA##n##_MADR), SWAPu32(HW_DMA##n##_BCR), value); \
	79	} \
20bfbac0	80	}
20bfbac0	81
0e067f55	82	make_dma_func(0,)
	83	make_dma_func(1,)
	84	make_dma_func(2, psxAbortDma2())
	85	make_dma_func(3,)
	86	make_dma_func(4,)
	87	make_dma_func(6,)
20bfbac0	88
a01b90c3	89	void psxHwWriteDmaIcr32(u32 value)
	90	{
	91	u32 tmp = value & 0x00ff803f;
	92	tmp \|= (SWAPu32(HW_DMA_ICR) & ~value) & 0x7f000000;
	93	if ((tmp & HW_DMA_ICR_GLOBAL_ENABLE && tmp & 0x7f000000)
	94	\|\| tmp & HW_DMA_ICR_BUS_ERROR) {
	95	if (!(SWAPu32(HW_DMA_ICR) & HW_DMA_ICR_IRQ_SENT))
	96	psxHu32ref(0x1070) \|= SWAP32(8);
	97	tmp \|= HW_DMA_ICR_IRQ_SENT;
	98	}
	99	HW_DMA_ICR = SWAPu32(tmp);
	100	}
	101
979b861b	102	void psxHwWriteGpuSR(u32 value)
979b861b	103	{
c9f729d0	104	u32 old_sr = HW_GPU_STATUS, new_sr;
979b861b	105	GPU_writeStatus(value);
979b861b	106	gpuSyncPluginSR();
c9f729d0	107	new_sr = HW_GPU_STATUS;
	108	// "The Next Tetris" seems to rely on the field order after enable
	109	if ((old_sr ^ new_sr) & new_sr & SWAP32(PSXGPU_ILACE))
	110	frame_counter \|= 1;
979b861b	111	}
	112
	113	u32 psxHwReadGpuSR(void)
	114	{
f8896d18	115	u32 v, c = psxRegs.cycle;
979b861b	116
	117	// meh2, syncing for img bit, might want to avoid it..
	118	gpuSyncPluginSR();
bf58ac4c	119	v = SWAP32(HW_GPU_STATUS);
f8896d18	120	v \|= ((s32)(psxRegs.gpuIdleAfter - c) >> 31) & PSXGPU_nBUSY;
979b861b	121
	122	// XXX: because of large timeslices can't use hSyncCount, using rough
	123	// approximization instead. Perhaps better use hcounter code here or something.
bf58ac4c	124	if (hSyncCount < 240 && (v & PSXGPU_ILACE_BITS) != PSXGPU_ILACE_BITS)
f8896d18	125	v \|= PSXGPU_LCF & (c << 20);
979b861b	126	return v;
	127	}
	128
8496ee3e	129	u32 sio1ReadStat16(void)
	130	{
	131	// Armored Core, F1 Link cable misdetection
	132	return 0xa0;
	133	}
	134
ef79bbde	135	u8 psxHwRead8(u32 add) {
20bfbac0	136	u8 hard;
	137
	138	switch (add & 0xffff) {
	139	case 0x1040: hard = sioRead8(); break;
	140	case 0x1800: hard = cdrRead0(); break;
	141	case 0x1801: hard = cdrRead1(); break;
	142	case 0x1802: hard = cdrRead2(); break;
	143	case 0x1803: hard = cdrRead3(); break;
	144
	145	case 0x1041: case 0x1042: case 0x1043:
	146	case 0x1044: case 0x1045:
	147	case 0x1046: case 0x1047:
	148	case 0x1048: case 0x1049:
	149	case 0x104a: case 0x104b:
	150	case 0x104c: case 0x104d:
	151	case 0x104e: case 0x104f:
	152	case 0x1050: case 0x1051:
	153	case 0x1054: case 0x1055:
	154	case 0x1058: case 0x1059:
	155	case 0x105a: case 0x105b:
	156	case 0x105c: case 0x105d:
	157	case 0x1100: case 0x1101:
	158	case 0x1104: case 0x1105:
	159	case 0x1108: case 0x1109:
	160	case 0x1110: case 0x1111:
	161	case 0x1114: case 0x1115:
	162	case 0x1118: case 0x1119:
	163	case 0x1120: case 0x1121:
	164	case 0x1124: case 0x1125:
	165	case 0x1128: case 0x1129:
	166	case 0x1810: case 0x1811:
	167	case 0x1812: case 0x1813:
	168	case 0x1814: case 0x1815:
	169	case 0x1816: case 0x1817:
	170	case 0x1820: case 0x1821:
	171	case 0x1822: case 0x1823:
	172	case 0x1824: case 0x1825:
	173	case 0x1826: case 0x1827:
	174	log_unhandled("unhandled r8 %08x @%08x\n", add, psxRegs.pc);
	175	// falthrough
	176	default:
	177	if (0x1f801c00 <= add && add < 0x1f802000) {
	178	u16 val = SPU_readRegister(add & ~1, psxRegs.cycle);
	179	hard = (add & 1) ? val >> 8 : val;
	180	break;
	181	}
	182	hard = psxHu8(add);
ef79bbde P	183	}
ef79bbde P	184
20bfbac0	185	//printf("r8 %08x %02x @%08x\n", add, hard, psxRegs.pc);
ef79bbde P	186	return hard;
	187	}
	188
	189	u16 psxHwRead16(u32 add) {
	190	unsigned short hard;
	191
20bfbac0	192	switch (add & 0xffff) {
	193	case 0x1040: hard = sioRead8(); break;
	194	case 0x1044: hard = sioReadStat16(); break;
	195	case 0x1048: hard = sioReadMode16(); break;
	196	case 0x104a: hard = sioReadCtrl16(); break;
	197	case 0x104e: hard = sioReadBaud16(); break;
8496ee3e	198	case 0x1054: hard = sio1ReadStat16(); break;
20bfbac0	199	case 0x1100: hard = psxRcntRcount0(); break;
	200	case 0x1104: hard = psxRcntRmode(0); break;
	201	case 0x1108: hard = psxRcntRtarget(0); break;
	202	case 0x1110: hard = psxRcntRcount1(); break;
	203	case 0x1114: hard = psxRcntRmode(1); break;
	204	case 0x1118: hard = psxRcntRtarget(1); break;
	205	case 0x1120: hard = psxRcntRcount2(); break;
	206	case 0x1124: hard = psxRcntRmode(2); break;
	207	case 0x1128: hard = psxRcntRtarget(2); break;
	208
	209	case 0x1042:
	210	case 0x1046:
	211	case 0x104c:
	212	case 0x1050:
	213	case 0x1058:
	214	case 0x105a:
	215	case 0x105c:
	216	case 0x1800:
	217	case 0x1802:
	218	case 0x1810:
	219	case 0x1812:
	220	case 0x1814:
	221	case 0x1816:
	222	case 0x1820:
	223	case 0x1822:
	224	case 0x1824:
	225	case 0x1826:
	226	log_unhandled("unhandled r16 %08x @%08x\n", add, psxRegs.pc);
	227	// falthrough
	228	default:
	229	if (0x1f801c00 <= add && add < 0x1f802000) {
	230	hard = SPU_readRegister(add, psxRegs.cycle);
	231	break;
	232	}
	233	hard = psxHu16(add);
ef79bbde P	234	}
ef79bbde P	235
20bfbac0	236	//printf("r16 %08x %04x @%08x\n", add, hard, psxRegs.pc);
ef79bbde P	237	return hard;
	238	}
	239
	240	u32 psxHwRead32(u32 add) {
	241	u32 hard;
	242
20bfbac0	243	switch (add & 0xffff) {
	244	case 0x1040: hard = sioRead8(); break;
	245	case 0x1044: hard = sioReadStat16(); break;
	246	case 0x1100: hard = psxRcntRcount0(); break;
	247	case 0x1104: hard = psxRcntRmode(0); break;
	248	case 0x1108: hard = psxRcntRtarget(0); break;
	249	case 0x1110: hard = psxRcntRcount1(); break;
	250	case 0x1114: hard = psxRcntRmode(1); break;
	251	case 0x1118: hard = psxRcntRtarget(1); break;
	252	case 0x1120: hard = psxRcntRcount2(); break;
	253	case 0x1124: hard = psxRcntRmode(2); break;
	254	case 0x1128: hard = psxRcntRtarget(2); break;
	255	case 0x1810: hard = GPU_readData(); break;
0c2126b9	256	case 0x1814: hard = psxHwReadGpuSR(); break;
20bfbac0	257	case 0x1820: hard = mdecRead0(); break;
	258	case 0x1824: hard = mdecRead1(); break;
	259
	260	case 0x1048:
	261	case 0x104c:
	262	case 0x1050:
	263	case 0x1054:
	264	case 0x1058:
	265	case 0x105c:
	266	case 0x1800:
	267	log_unhandled("unhandled r32 %08x @%08x\n", add, psxRegs.pc);
	268	// falthrough
	269	default:
	270	if (0x1f801c00 <= add && add < 0x1f802000) {
	271	hard = SPU_readRegister(add, psxRegs.cycle);
	272	hard \|= SPU_readRegister(add + 2, psxRegs.cycle) << 16;
	273	break;
	274	}
	275	hard = psxHu32(add);
ef79bbde	276	}
20bfbac0	277	//printf("r32 %08x %08x @%08x\n", add, hard, psxRegs.pc);
ef79bbde P	278	return hard;
	279	}
	280
20bfbac0	281	void psxHwWrite8(u32 add, u32 value) {
	282	switch (add & 0xffff) {
	283	case 0x1040: sioWrite8(value); return;
	284	case 0x10f6:
	285	// nocash documents it as forced w32, but still games use this?
	286	break;
	287	case 0x1800: cdrWrite0(value); return;
	288	case 0x1801: cdrWrite1(value); return;
	289	case 0x1802: cdrWrite2(value); return;
	290	case 0x1803: cdrWrite3(value); return;
	291	case 0x2041: break; // "POST (external 7 segment display)"
	292
	293	default:
	294	if (0x1f801c00 <= add && add < 0x1f802000) {
	295	log_unhandled("spu w8 %02x @%08x\n", value, psxRegs.pc);
	296	if (!(add & 1))
	297	SPU_writeRegister(add, value, psxRegs.cycle);
ef79bbde	298	return;
20bfbac0	299	}
	300	else
	301	log_unhandled("unhandled w8 %08x %08x @%08x\n",
	302	add, value, psxRegs.pc);
ef79bbde P	303	}
ef79bbde P	304	psxHu8(add) = value;
ef79bbde P	305	}
ef79bbde P	306
20bfbac0	307	void psxHwWrite16(u32 add, u32 value) {
	308	switch (add & 0xffff) {
	309	case 0x1040: sioWrite8(value); return;
	310	case 0x1044: sioWriteStat16(value); return;
	311	case 0x1048: sioWriteMode16(value); return;
	312	case 0x104a: sioWriteCtrl16(value); return;
	313	case 0x104e: sioWriteBaud16(value); return;
	314	case 0x1070: psxHwWriteIstat(value); return;
	315	case 0x1074: psxHwWriteImask(value); return;
	316	case 0x1100: psxRcntWcount(0, value); return;
	317	case 0x1104: psxRcntWmode(0, value); return;
	318	case 0x1108: psxRcntWtarget(0, value); return;
	319	case 0x1110: psxRcntWcount(1, value); return;
	320	case 0x1114: psxRcntWmode(1, value); return;
	321	case 0x1118: psxRcntWtarget(1, value); return;
	322	case 0x1120: psxRcntWcount(2, value); return;
	323	case 0x1124: psxRcntWmode(2, value); return;
	324	case 0x1128: psxRcntWtarget(2, value); return;
	325
	326	// forced write32:
	327	case 0x1088: // DMA0 chcr (MDEC in DMA)
	328	case 0x108c: psxHwWriteChcr0(value); return;
	329	case 0x1098: // DMA1 chcr (MDEC out DMA)
	330	case 0x109c: psxHwWriteChcr1(value); return;
	331	case 0x10a8: // DMA2 chcr (GPU DMA)
	332	case 0x10ac: psxHwWriteChcr2(value); return;
	333	case 0x10b8: // DMA3 chcr (CDROM DMA)
	334	case 0x10bc: psxHwWriteChcr3(value); return;
	335	case 0x10c8: // DMA4 chcr (SPU DMA)
	336	case 0x10cc: psxHwWriteChcr4(value); return;
	337	case 0x10e8: // DMA6 chcr (OT clear)
	338	case 0x10ec: psxHwWriteChcr6(value); return;
	339	case 0x10f4: psxHwWriteDmaIcr32(value); return;
	340
	341	// forced write32 with no immediate effect:
	342	case 0x1014:
	343	case 0x1060:
	344	case 0x1080:
	345	case 0x1090:
	346	case 0x10a0:
	347	case 0x10b0:
	348	case 0x10c0:
	349	case 0x10d0:
	350	case 0x10e0:
	351	case 0x10f0:
	352	psxHu32ref(add) = SWAPu32(value);
	353	return;
	354
	355	case 0x1800:
	356	case 0x1802:
	357	case 0x1810:
	358	case 0x1812:
	359	case 0x1814:
	360	case 0x1816:
	361	case 0x1820:
	362	case 0x1822:
	363	case 0x1824:
	364	case 0x1826:
	365	log_unhandled("unhandled w16 %08x @%08x\n", add, psxRegs.pc);
	366	break;
	367
	368	default:
	369	if (0x1f801c00 <= add && add < 0x1f802000) {
	370	SPU_writeRegister(add, value, psxRegs.cycle);
ef79bbde	371	return;
20bfbac0	372	}
	373	else if (0x1f801000 <= add && add < 0x1f801800)
	374	log_unhandled("unhandled w16 %08x %08x @%08x\n",
	375	add, value, psxRegs.pc);
ef79bbde P	376	}
ef79bbde P	377	psxHu16ref(add) = SWAPu16(value);
ef79bbde P	378	}
	379
	380	void psxHwWrite32(u32 add, u32 value) {
20bfbac0	381	switch (add & 0xffff) {
	382	case 0x1040: sioWrite8(value); return;
	383	case 0x1070: psxHwWriteIstat(value); return;
	384	case 0x1074: psxHwWriteImask(value); return;
	385	case 0x1088: // DMA0 chcr (MDEC in DMA)
	386	case 0x108c: psxHwWriteChcr0(value); return;
	387	case 0x1098: // DMA1 chcr (MDEC out DMA)
	388	case 0x109c: psxHwWriteChcr1(value); return;
	389	case 0x10a8: // DMA2 chcr (GPU DMA)
	390	case 0x10ac: psxHwWriteChcr2(value); return;
	391	case 0x10b8: // DMA3 chcr (CDROM DMA)
	392	case 0x10bc: psxHwWriteChcr3(value); return;
	393	case 0x10c8: // DMA4 chcr (SPU DMA)
	394	case 0x10cc: psxHwWriteChcr4(value); return;
	395	case 0x10e8: // DMA6 chcr (OT clear)
	396	case 0x10ec: psxHwWriteChcr6(value); return;
	397	case 0x10f4: psxHwWriteDmaIcr32(value); return;
	398
	399	case 0x1810: GPU_writeData(value); return;
	400	case 0x1814: psxHwWriteGpuSR(value); return;
	401	case 0x1820: mdecWrite0(value); break;
	402	case 0x1824: mdecWrite1(value); break;
	403
	404	case 0x1100: psxRcntWcount(0, value & 0xffff); return;
	405	case 0x1104: psxRcntWmode(0, value); return;
	406	case 0x1108: psxRcntWtarget(0, value & 0xffff); return;
	407	case 0x1110: psxRcntWcount(1, value & 0xffff); return;
	408	case 0x1114: psxRcntWmode(1, value); return;
	409	case 0x1118: psxRcntWtarget(1, value & 0xffff); return;
	410	case 0x1120: psxRcntWcount(2, value & 0xffff); return;
	411	case 0x1124: psxRcntWmode(2, value); return;
	412	case 0x1128: psxRcntWtarget(2, value & 0xffff); return;
	413
	414	case 0x1044:
	415	case 0x1048:
	416	case 0x104c:
	417	case 0x1050:
	418	case 0x1054:
	419	case 0x1058:
	420	case 0x105c:
	421	case 0x1800:
	422	log_unhandled("unhandled w32 %08x %08x @%08x\n", add, value, psxRegs.pc);
	423	break;
	424
	425	default:
	426	if (0x1f801c00 <= add && add < 0x1f802000) {
	427	SPU_writeRegister(add, value&0xffff, psxRegs.cycle);
	428	SPU_writeRegister(add + 2, value>>16, psxRegs.cycle);
ef79bbde	429	return;
20bfbac0	430	}
ef79bbde P	431	}
ef79bbde P	432	psxHu32ref(add) = SWAPu32(value);
ef79bbde P	433	}
ef79bbde P	434
496d88d4	435	int psxHwFreeze(void *f, int Mode) {
ef79bbde P	436	return 0;
ef79bbde P	437	}