[ViewVC] Diff of: cebix/SheepShaver/src/rom

Comparing SheepShaver/src/rom_patches.cpp (file contents):
Revision 1.25 by gbeauche, 2004-01-31T11:10:48Z vs.
Revision 1.34 by gbeauche, 2004-07-03T17:48:44Z

#	Line 847 \| Line 847 \| static bool patch_nanokernel_boot(void)
847		lp[7] = htonl(0x00040004); // Inst cache assoc/Data cache assoc
848		lp[8] = htonl(0x00400002); // TLB total size/TLB assoc
849		break;
850	<	case 8: // 750
850	>	case 8: // 750, 750FX
851	>	case 0x7000:
852		lp[0] = htonl(0x1000); // Page size
853		lp[1] = htonl(0x8000); // Data cache size
854		lp[2] = htonl(0x8000); // Inst cache size
#	Line 871 \| Line 872 \| static bool patch_nanokernel_boot(void)
872		lp[8] = htonl(0x00800002); // TLB total size/TLB assoc
873		break;
874		// case 11: // X704?
875	<	case 12: // ???
875	>	case 12: // 7400, 7410, 7450, 7455, 7457
876	>	case 0x800c:
877	>	case 0x8000:
878	>	case 0x8001:
879	>	case 0x8002:
880		lp[0] = htonl(0x1000); // Page size
881		lp[1] = htonl(0x8000); // Data cache size
882		lp[2] = htonl(0x8000); // Inst cache size
#	Line 906 \| Line 911 \| static bool patch_nanokernel_boot(void)
911		lp[7] = htonl(0x00080008); // Inst cache assoc/Data cache assoc
912		lp[8] = htonl(0x00800004); // TLB total size/TLB assoc
913		break;
914	<	case 0x8000: // 7400
910	<	case 0x800c: // 7410
914	>	case 0x39: // 970
915		lp[0] = htonl(0x1000); // Page size
916		lp[1] = htonl(0x8000); // Data cache size
917	<	lp[2] = htonl(0x8000); // Inst cache size
917	>	lp[2] = htonl(0x10000); // Inst cache size
918		lp[3] = htonl(0x00200020); // Coherency block size/Reservation granule size
919	<	lp[4] = htonl(0x00000020); // Unified caches/Inst cache line size
919	>	lp[4] = htonl(0x00010020); // Unified caches/Inst cache line size
920		lp[5] = htonl(0x00200020); // Data cache line size/Data cache block size touch
921	<	lp[6] = htonl(0x00200020); // Inst cache block size/Data cache block size
922	<	lp[7] = htonl(0x00080008); // Inst cache assoc/Data cache assoc
923	<	lp[8] = htonl(0x00800002); // TLB total size/TLB assoc
921	>	lp[6] = htonl(0x00800080); // Inst cache block size/Data cache block size
922	>	lp[7] = htonl(0x00020002); // Inst cache assoc/Data cache assoc
923	>	lp[8] = htonl(0x02000004); // TLB total size/TLB assoc
924		break;
925		default:
926		printf("WARNING: Unknown CPU type\n");
#	Line 1069 \| Line 1073 \| static bool patch_nanokernel_boot(void)
1073		static bool patch_68k_emul(void)
1074		{
1075		uint32 *lp;
1076	<	uint32 base;
1076	>	uint32 base, loc;
1077
1078		// Overwrite twi instructions
1079		static const uint8 twi_dat[] = {0x0f, 0xff, 0x00, 0x00, 0x0f, 0xff, 0x00, 0x01, 0x0f, 0xff, 0x00, 0x02};
#	Line 1133 \| Line 1137 \| static bool patch_68k_emul(void)
1137		// Extra routine for 68k emulator start
1138		lp = (uint32 *)(ROM_BASE + 0x36f900);
1139		*lp++ = htonl(0x7c2903a6); // mtctr r1
1136	–	#if EMULATED_PPC
1137	–	*lp++ = htonl(NativeOpcode(NATIVE_DISABLE_INTERRUPT));
1138	–	#else
1140		*lp++ = htonl(0x80200000 + XLM_IRQ_NEST); // lwz r1,XLM_IRQ_NEST
1141		*lp++ = htonl(0x38210001); // addi r1,r1,1
1142		*lp++ = htonl(0x90200000 + XLM_IRQ_NEST); // stw r1,XLM_IRQ_NEST
1142	–	#endif
1143		*lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz r1,XLM_KERNEL_DATA
1144		*lp++ = htonl(0x90c10018); // stw r6,0x18(r1)
1145		*lp++ = htonl(0x7cc902a6); // mfctr r6
#	Line 1167 \| Line 1167 \| static bool patch_68k_emul(void)
1167		// Extra routine for Mixed Mode
1168		lp = (uint32 *)(ROM_BASE + 0x36fa00);
1169		*lp++ = htonl(0x7c2903a6); // mtctr r1
1170	–	#if EMULATED_PPC
1171	–	*lp++ = htonl(NativeOpcode(NATIVE_DISABLE_INTERRUPT));
1172	–	#else
1170		*lp++ = htonl(0x80200000 + XLM_IRQ_NEST); // lwz r1,XLM_IRQ_NEST
1171		*lp++ = htonl(0x38210001); // addi r1,r1,1
1172		*lp++ = htonl(0x90200000 + XLM_IRQ_NEST); // stw r1,XLM_IRQ_NEST
1176	–	#endif
1173		*lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz r1,XLM_KERNEL_DATA
1174		*lp++ = htonl(0x90c10018); // stw r6,0x18(r1)
1175		*lp++ = htonl(0x7cc902a6); // mfctr r6
#	Line 1201 \| Line 1197 \| static bool patch_68k_emul(void)
1197		// Extra routine for Reset/FC1E opcode
1198		lp = (uint32 *)(ROM_BASE + 0x36fb00);
1199		*lp++ = htonl(0x7c2903a6); // mtctr r1
1204	–	#if EMULATED_PPC
1205	–	*lp++ = htonl(NativeOpcode(NATIVE_DISABLE_INTERRUPT));
1206	–	#else
1200		*lp++ = htonl(0x80200000 + XLM_IRQ_NEST); // lwz r1,XLM_IRQ_NEST
1201		*lp++ = htonl(0x38210001); // addi r1,r1,1
1202		*lp++ = htonl(0x90200000 + XLM_IRQ_NEST); // stw r1,XLM_IRQ_NEST
1210	–	#endif
1203		*lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz r1,XLM_KERNEL_DATA
1204		*lp++ = htonl(0x90c10018); // stw r6,0x18(r1)
1205		*lp++ = htonl(0x7cc902a6); // mfctr r6
#	Line 1235 \| Line 1227 \| static bool patch_68k_emul(void)
1227		// Extra routine for FE0A opcode (QuickDraw 3D needs this)
1228		lp = (uint32 *)(ROM_BASE + 0x36fc00);
1229		*lp++ = htonl(0x7c2903a6); // mtctr r1
1238	–	#if EMULATED_PPC
1239	–	*lp++ = htonl(NativeOpcode(NATIVE_DISABLE_INTERRUPT));
1240	–	#else
1230		*lp++ = htonl(0x80200000 + XLM_IRQ_NEST); // lwz r1,XLM_IRQ_NEST
1231		*lp++ = htonl(0x38210001); // addi r1,r1,1
1232		*lp++ = htonl(0x90200000 + XLM_IRQ_NEST); // stw r1,XLM_IRQ_NEST
1244	–	#endif
1233		*lp++ = htonl(0x80200000 + XLM_KERNEL_DATA);// lwz r1,XLM_KERNEL_DATA
1234		*lp++ = htonl(0x90c10018); // stw r6,0x18(r1)
1235		*lp++ = htonl(0x7cc902a6); // mfctr r6
#	Line 1277 \| Line 1265 \| static bool patch_68k_emul(void)
1265		return false;
1266		dr_found:
1267		lp++;
1268	<	*lp = htonl(0x48000000 + 0xf000 - (((uint32)lp - ROM_BASE) & 0xffff)); // b DR_CACHE_BASE+0x1f000
1269	<	lp = (uint32 *)(ROM_BASE + 0x37f000);
1270	<	*lp++ = htonl(0x3c000000 + ((ROM_BASE + 0x46d0a4) >> 16)); // lis r0,xxx
1271	<	*lp++ = htonl(0x60000000 + ((ROM_BASE + 0x46d0a4) & 0xffff)); // ori r0,r0,xxx
1272	<	*lp++ = htonl(0x7c0903a6); // mtctr r0
1273	<	*lp = htonl(POWERPC_BCTR); // bctr
1268	>	loc = (uint32)lp - ROM_BASE;
1269	>	if ((base = powerpc_branch_target(ROM_BASE + loc)) == 0) base = ROM_BASE + loc;
1270	>	static const uint8 dr_ret_dat[] = {0x80, 0xbf, 0x08, 0x14, 0x53, 0x19, 0x4d, 0xac, 0x7c, 0xa8, 0x03, 0xa6};
1271	>	if ((base = find_rom_data(base - ROM_BASE, 0x380000, dr_ret_dat, sizeof(dr_ret_dat))) == 0) return false;
1272	>	D(bug("dr_ret %08lx\n", base));
1273	>	if (base != loc) {
1274	>	// OldWorld ROMs contain an absolute branch
1275	>	D(bug(" patching absolute branch at %08x\n", (uint32)lp - ROM_BASE));
1276	>	*lp = htonl(0x48000000 + 0xf000 - (((uint32)lp - ROM_BASE) & 0xffff)); // b DR_CACHE_BASE+0x1f000
1277	>	lp = (uint32 *)(ROM_BASE + 0x37f000);
1278	>	*lp++ = htonl(0x3c000000 + ((ROM_BASE + base) >> 16)); // lis r0,xxx
1279	>	*lp++ = htonl(0x60000000 + ((ROM_BASE + base) & 0xffff)); // ori r0,r0,xxx
1280	>	*lp++ = htonl(0x7c0803a6); // mtlr r0
1281	>	*lp = htonl(POWERPC_BLR); // blr
1282	>	}
1283		return true;
1284		}
1285
#	Line 1399 \| Line 1396 \| static bool patch_nanokernel(void)
1396		uint32 npc = (uint32)(lp + 1) - ROM_BASE;
1397
1398		lp = (uint32 *)(ROM_BASE + 0x318000);
1402	–	#if EMULATED_PPC
1403	–	*lp++ = htonl(NativeOpcode(NATIVE_ENABLE_INTERRUPT));
1404	–	*lp = htonl(0x48000000 + ((npc - 0x318004) & 0x03fffffc)); // b ROM_BASE+0x312c2c
1405	–	#else
1399		*lp++ = htonl(0x81400000 + XLM_IRQ_NEST); // lwz r10,XLM_IRQ_NEST
1400		*lp++ = htonl(0x394affff); // subi r10,r10,1
1401		*lp++ = htonl(0x91400000 + XLM_IRQ_NEST); // stw r10,XLM_IRQ_NEST
1402		*lp = htonl(0x48000000 + ((npc - 0x31800c) & 0x03fffffc)); // b ROM_BASE+0x312c2c
1410	–	#endif
1403
1404		/*
1405		// Disable FE0A/FE06 opcodes
#	Line 1759 \| Line 1751 \| static bool patch_68k(void)
1751		*wp++ = htons(M68K_NOP);
1752		*wp = htons(M68K_NOP);
1753
1754	<	// Gestalt PowerPC page size, RAM size (InitGestalt, via 0x25c)
1754	>	// Gestalt PowerPC page size, CPU type, RAM size (InitGestalt, via 0x25c)
1755		static const uint8 page_size2_dat[] = {0x26, 0x79, 0x5f, 0xff, 0xef, 0xd8, 0x25, 0x6b, 0x00, 0x10, 0x00, 0x1e};
1756		if ((base = find_rom_data(0x50000, 0x70000, page_size2_dat, sizeof(page_size2_dat))) == 0) return false;
1757		D(bug("page_size2 %08lx\n", base));
#	Line 1769 \| Line 1761 \| static bool patch_68k(void)
1761		*wp++ = htons(0x1000);
1762		*wp++ = htons(0x001e);
1763		*wp++ = htons(0x157c); // move.b #PVR,$1d(a2)
1764	<	*wp++ = htons(PVR >> 16);
1764	>	uint32 cput = (PVR >> 16);
1765	>	if (cput == 0x7000)
1766	>	cput \|= 0x20;
1767	>	else if (cput >= 0x8000 && cput <= 0x8002)
1768	>	cput \|= 0x10;
1769	>	cput &= 0xff;
1770	>	*wp++ = htons(cput);
1771		*wp++ = htons(0x001d);
1772		*wp++ = htons(0x263c); // move.l #RAMSize,d3
1773		*wp++ = htons(RAMSize >> 16);
#	Line 2239 \| Line 2237 \| static bool patch_68k(void)
2237		lp = (uint32 )(ROM_BASE + ntohl(lp));
2238		lp[0xa9fd & 0x3ff] = htonl(GET_SCRAP_PATCH_SPACE);
2239
2242	–	#if __BEOS__
2240		// Patch SynchIdleTime()
2241		if (PrefsFindBool("idlewait")) {
2242		wp = (uint16 *)(ROM_BASE + find_rom_trap(0xabf7) + 4); // SynchIdleTime()
2243		D(bug("SynchIdleTime at %08lx\n", wp));
2244	<	if (ntohs(*wp) == 0x2078) {
2244	>	if (ntohs(*wp) == 0x2078) { // movea.l ExpandMem,a0
2245		*wp++ = htons(M68K_EMUL_OP_IDLE_TIME);
2246		*wp = htons(M68K_NOP);
2247	<	} else {
2247	>	}
2248	>	else if (ntohs(*wp) == 0x70fe) // moveq #-2,d0
2249	>	*wp++ = htons(M68K_EMUL_OP_IDLE_TIME_2);
2250	>	else {
2251		D(bug("SynchIdleTime patch not installed\n"));
2252		}
2253		}
2254	–	#endif
2254
2255		// Construct list of all sifters used by sound components in ROM
2256		D(bug("Searching for sound components with type sdev in ROM\n"));
#	Line 2316 \| Line 2315 \| void InstallDrivers(void)
2315		WriteMacInt16(dce + dCtlFlags, SonyDriverFlags);
2316		}
2317
2318	<	#if DISABLE_SCSI && 0
2318	>	#if DISABLE_SCSI && HAVE_SIGSEGV_SKIP_INSTRUCTION
2319		// Fake SCSIGlobals
2320		WriteMacInt32(0xc0c, SheepMem::ZeroPage());
2321		#endif

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Comparing SheepShaver/src/rom_patches.cpp (file contents): Revision 1.25 by gbeauche, 2004-01-31T11:10:48Z vs. Revision 1.34 by gbeauche, 2004-07-03T17:48:44Z

Diff Legend

Comparing SheepShaver/src/rom_patches.cpp (file contents):
Revision 1.25 by gbeauche, 2004-01-31T11:10:48Z vs.
Revision 1.34 by gbeauche, 2004-07-03T17:48:44Z