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