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

Comparing BasiliskII/src/rom_patches.cpp (file contents):
Revision 1.9 by cebix, 1999-10-25T19:01:29Z vs.
Revision 1.13 by cebix, 2000-04-10T18:52:26Z

#	Line 1 \| Line 1
1		/*
2		* rom_patches.cpp - ROM patches
3		*
4	<	* Basilisk II (C) 1997-1999 Christian Bauer
4	>	* Basilisk II (C) 1997-2000 Christian Bauer
5		*
6		* This program is free software; you can redistribute it and/or modify
7		* it under the terms of the GNU General Public License as published by
#	Line 38 \| Line 38
38		#include "debug.h"
39
40
41	–	// Breakpoint
42	–	//#define M68K_BREAKPOINT 0x2310 // CritError
43	–	//#define M68K_BREAKPOINT 0x1d10 // BootMe
44	–
41		// Global variables
42	<	uint32 UniversalInfo; // ROM offset of UniversalInfo
43	<	uint32 PutScrapPatch; // Mac address of PutScrap() patch
42	>	uint32 UniversalInfo; // ROM offset of UniversalInfo
43	>	uint32 PutScrapPatch; // Mac address of PutScrap() patch
44	>	uint32 ROMBreakpoint = 0; // ROM offset of breakpoint (0 = disabled, 0x2310 = CritError)
45	>	bool PrintROMInfo = false; // Flag: print ROM information in PatchROM()
46
47		static uint32 sony_offset; // ROM offset of .Sony driver
48		static uint32 serd_offset; // ROM offset of SERD resource (serial drivers)
49		static uint32 microseconds_offset; // ROM offset of Microseconds() replacement routine
52	–	static uint32 memory_dispatch_offset; // ROM offset of MemoryDispatch() replacement routine
50
51		// Prototypes
52		uint16 ROMVersion;
#	Line 84 \| Line 81 \| static uint32 find_rom_resource(uint32 s
81
82		if (!cont)
83		rsrc_ptr = x;
84	+	else
85	+	rsrc_ptr = ReadMacInt32(ROMBaseMac + rsrc_ptr + 8);
86
87		for (;;) {
88		lp = ROMBaseMac + rsrc_ptr;
#	Line 142 \| Line 141 \| again:
141
142
143		/*
144	+	* Print ROM information to stream,
145	+	*/
146	+
147	+	static void list_rom_resources(void)
148	+	{
149	+	printf("ROM Resources:\n");
150	+	printf("Offset\t Type\tID\tSize\tName\n");
151	+	printf("------------------------------------------------\n");
152	+
153	+	uint32 lp = ROMBaseMac + ReadMacInt32(ROMBaseMac + 0x1a);
154	+	uint32 rsrc_ptr = ReadMacInt32(lp);
155	+
156	+	for (;;) {
157	+	lp = ROMBaseMac + rsrc_ptr;
158	+	uint32 data = ReadMacInt32(lp + 12);
159	+
160	+	char name[32];
161	+	int name_len = ReadMacInt8(lp + 23), i;
162	+	for (i=0; i<name_len; i++)
163	+	name[i] = ReadMacInt8(lp + 24 + i);
164	+	name[i] = 0;
165	+
166	+	printf("%08x %c%c%c%c\t%d\t%d\t%s\n", data, ReadMacInt8(lp + 16), ReadMacInt8(lp + 17), ReadMacInt8(lp + 18), ReadMacInt8(lp + 19), ReadMacInt16(lp + 20), ReadMacInt32(ROMBaseMac + data - 8), name);
167	+
168	+	rsrc_ptr = ReadMacInt32(lp + 8);
169	+	if (!rsrc_ptr)
170	+	break;
171	+	}
172	+	printf("\n");
173	+	}
174	+
175	+	// Mapping of Model IDs to Model names
176	+	struct mac_desc {
177	+	char *name;
178	+	int32 id;
179	+	};
180	+
181	+	static mac_desc MacDesc[] = {
182	+	{"Classic" , 1},
183	+	{"Mac XL" , 2},
184	+	{"Mac 512KE" , 3},
185	+	{"Mac Plus" , 4},
186	+	{"Mac SE" , 5},
187	+	{"Mac II" , 6},
188	+	{"Mac IIx" , 7},
189	+	{"Mac IIcx" , 8},
190	+	{"Mac SE/030" , 9},
191	+	{"Mac Portable" , 10},
192	+	{"Mac IIci" , 11},
193	+	{"Mac IIfx" , 13},
194	+	{"Mac Classic" , 17},
195	+	{"Mac IIsi" , 18},
196	+	{"Mac LC" , 19},
197	+	{"Quadra 900" , 20},
198	+	{"PowerBook 170" , 21},
199	+	{"Quadra 700" , 22},
200	+	{"Classic II" , 23},
201	+	{"PowerBook 100" , 24},
202	+	{"PowerBook 140" , 25},
203	+	{"Quadra 950" , 26},
204	+	{"Mac LCIII/Performa 450", 27},
205	+	{"PowerBook Duo 210" , 29},
206	+	{"Centris 650" , 30},
207	+	{"PowerBook Duo 230" , 32},
208	+	{"PowerBook 180" , 33},
209	+	{"PowerBook 160" , 34},
210	+	{"Quadra 800" , 35},
211	+	{"Quadra 650" , 36},
212	+	{"Mac LCII" , 37},
213	+	{"PowerBook Duo 250" , 38},
214	+	{"Mac IIvi" , 44},
215	+	{"Mac IIvm/Performa 600", 45},
216	+	{"Mac IIvx" , 48},
217	+	{"Color Classic/Performa 250", 49},
218	+	{"PowerBook 165c" , 50},
219	+	{"Centris 610" , 52},
220	+	{"Quadra 610" , 53},
221	+	{"PowerBook 145" , 54},
222	+	{"Mac LC520" , 56},
223	+	{"Quadra/Centris 660AV" , 60},
224	+	{"Performa 46x" , 62},
225	+	{"PowerBook 180c" , 71},
226	+	{"PowerBook 520/520c/540/540c", 72},
227	+	{"PowerBook Duo 270c" , 77},
228	+	{"Quadra 840AV" , 78},
229	+	{"Performa 550" , 80},
230	+	{"PowerBook 165" , 84},
231	+	{"PowerBook 190" , 85},
232	+	{"Mac TV" , 88},
233	+	{"Mac LC475/Performa 47x", 89},
234	+	{"Mac LC575" , 92},
235	+	{"Quadra 605" , 94},
236	+	{"Quadra 630" , 98},
237	+	{"Mac LC580" , 99},
238	+	{"PowerBook Duo 280" , 102},
239	+	{"PowerBook Duo 280c" , 103},
240	+	{"PowerBook 150" , 115},
241	+	{"unknown", -1}
242	+	};
243	+
244	+	static void print_universal_info(uint32 info)
245	+	{
246	+	uint8 id = ReadMacInt8(info + 18);
247	+	uint16 hwcfg = ReadMacInt16(info + 16);
248	+	uint16 rom85 = ReadMacInt16(info + 20);
249	+
250	+	// Find model name
251	+	char *name = "unknown";
252	+	for (int i=0; MacDesc[i].id >= 0; i++)
253	+	if (MacDesc[i].id == id + 6) {
254	+	name = MacDesc[i].name;
255	+	break;
256	+	}
257	+
258	+	printf("%08x %02x\t%04x\t%04x\t%s\n", info - ROMBaseMac, id, hwcfg, rom85, name);
259	+	}
260	+
261	+	static void list_universal_infos(void)
262	+	{
263	+	uint32 ofs = 0x3000;
264	+	for (int i=0; i<0x2000; i+=2, ofs+=2)
265	+	if (ReadMacInt32(ROMBaseMac + ofs) == 0xdc000505) {
266	+	ofs -= 16;
267	+	uint32 q;
268	+	for (q=ofs; q > 0 && ReadMacInt32(ROMBaseMac + q) != ofs - q; q-=4) ;
269	+	if (q > 0) {
270	+	printf("Universal Table at %08x:\n", q);
271	+	printf("Offset\t ID\tHWCfg\tROM85\tModel\n");
272	+	printf("------------------------------------------------\n");
273	+	while (ofs = ReadMacInt32(ROMBaseMac + q)) {
274	+	print_universal_info(ROMBaseMac + ofs + q);
275	+	q += 4;
276	+	}
277	+	}
278	+	break;
279	+	}
280	+	printf("\n");
281	+	}
282	+
283	+	static void print_rom_info(void)
284	+	{
285	+	printf("\nROM Info:\n");
286	+	printf("Checksum : %08x\n", ReadMacInt32(ROMBaseMac));
287	+	printf("Version : %04x\n", ROMVersion);
288	+	printf("Sub Version : %04x\n", ReadMacInt16(ROMBaseMac + 18));
289	+	printf("Resource Map: %08x\n", ReadMacInt32(ROMBaseMac + 26));
290	+	printf("Trap Tables : %08x\n\n", ReadMacInt32(ROMBaseMac + 34));
291	+	if (ROMVersion == ROM_VERSION_32) {
292	+	list_rom_resources();
293	+	list_universal_infos();
294	+	}
295	+	}
296	+
297	+
298	+	/*
299		* Driver stubs
300		*/
301
#	Line 642 \| Line 796 \| void InstallSERD(void)
796
797		void PatchAfterStartup(void)
798		{
645	–	// Install MemoryDispatch() replacement routine
646	–	M68kRegisters r;
647	–	r.a[0] = ROMBaseMac + memory_dispatch_offset;
648	–	r.d[0] = 0xa05c;
649	–	Execute68kTrap(0xa247, &r); // SetOSTrapAddress()
650	–
799		#if SUPPORTS_EXTFS
800		// Install external file system
801		InstallExtFS();
#	Line 1303 \| Line 1451 \| static bool patch_rom_32(void)
1451		}
1452		}
1453
1454	+	// Don't set MemoryDispatch() to unimplemented trap
1455	+	static const uint8 memdisp_dat[] = {0x30, 0x3c, 0xa8, 0x9f, 0xa7, 0x46, 0x30, 0x3c, 0xa0, 0x5c, 0xa2, 0x47};
1456	+	base = find_rom_data(0x4f100, 0x4f180, memdisp_dat, sizeof(memdisp_dat));
1457	+	D(bug("memdisp %08lx\n", base));
1458	+	if (base) { // ROM15/22/23/26/27/32
1459	+	wp = (uint16 *)(ROMBaseHost + base + 10);
1460	+	*wp = htons(M68K_NOP);
1461	+	}
1462	+
1463		// Patch .EDisk driver (don't scan for EDisks in the area ROMBase..0xe00000)
1464		uint32 edisk_offset = find_rom_resource('DRVR', 51);
1465		if (edisk_offset) {
#	Line 1404 \| Line 1561 \| static bool patch_rom_32(void)
1561		*wp++ = htons(base >> 16);
1562		*wp = htons(base & 0xffff);
1563
1407	–	// Install MemoryDispatch() replacement routine (activated in PatchAfterStartup())
1408	–	memory_dispatch_offset = sony_offset + 0xc20;
1409	–	wp = (uint16 *)(ROMBaseHost + memory_dispatch_offset);
1410	–	*wp++ = htons(M68K_EMUL_OP_MEMORY_DISPATCH);
1411	–	*wp = htons(M68K_RTS);
1412	–
1564		#if EMULATED_68K
1565		// Replace BlockMove()
1566		wp = (uint16 *)(ROMBaseHost + find_rom_trap(0xa02e)); // BlockMove()
#	Line 1418 \| Line 1569 \| static bool patch_rom_32(void)
1569		*wp = htons(M68K_RTS);
1570		#endif
1571
1572	+	// Look for double PACK 4 resources
1573	+	if ((base = find_rom_resource('PACK', 4)) == 0) return false;
1574	+	if ((base = find_rom_resource('PACK', 4, true)) == 0 && FPUType == 0)
1575	+	printf("WARNING: This ROM seems to require an FPU\n");
1576	+
1577		// Patch VIA interrupt handler
1578		wp = (uint16 *)(ROMBaseHost + 0x9bc4); // Level 1 handler
1579		*wp++ = htons(0x7002); // moveq #2,d0 (always 60Hz interrupt)
#	Line 1435 \| Line 1591 \| static bool patch_rom_32(void)
1591
1592		bool PatchROM(void)
1593		{
1594	<	// Print ROM info
1595	<	D(bug("ROM Info:\n"));
1596	<	D(bug("Checksum: %08lx\n", ReadMacInt32(ROMBaseMac)));
1441	<	D(bug("Version: %04x\n", ROMVersion));
1442	<	D(bug("Sub Version: %04x\n", ReadMacInt16(ROMBaseMac + 18)));
1594	>	// Print some information about the ROM
1595	>	if (PrintROMInfo)
1596	>	print_rom_info();
1597
1598		// Patch ROM depending on version
1599		switch (ROMVersion) {
#	Line 1455 \| Line 1609 \| bool PatchROM(void)
1609		return false;
1610		}
1611
1458	–	#ifdef M68K_BREAKPOINT
1612		// Install breakpoint
1613	<	uint16 wp = (uint16 )(ROMBaseHost + M68K_BREAKPOINT);
1614	<	*wp = htons(M68K_EMUL_BREAK);
1615	<	#endif
1613	>	if (ROMBreakpoint) {
1614	>	uint16 wp = (uint16 )(ROMBaseHost + ROMBreakpoint);
1615	>	*wp = htons(M68K_EMUL_BREAK);
1616	>	}
1617
1618		// Clear caches as we loaded and patched code
1619		FlushCodeCache(ROMBaseHost, ROMSize);

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Comparing BasiliskII/src/rom_patches.cpp (file contents): Revision 1.9 by cebix, 1999-10-25T19:01:29Z vs. Revision 1.13 by cebix, 2000-04-10T18:52:26Z

Diff Legend

Comparing BasiliskII/src/rom_patches.cpp (file contents):
Revision 1.9 by cebix, 1999-10-25T19:01:29Z vs.
Revision 1.13 by cebix, 2000-04-10T18:52:26Z