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Add support for Gossamer ROMs (DTG3)

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This commit is contained in:
gbeauche 2003-10-05 23:05:05 +00:00
parent b66f5972f9
commit 3768573d35
2 changed files with 72 additions and 24 deletions
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1
SheepShaver/src/include/rom_patches.h
View File

@ -27,6 +27,7 @@ enum {
ROMTYPE_ALCHEMY,
ROMTYPE_ZANZIBAR,
ROMTYPE_GAZELLE,
ROMTYPE_GOSSAMER,
ROMTYPE_NEWWORLD
};
extern int ROMType;

95
SheepShaver/src/rom_patches.cpp
View File

@ -718,6 +718,8 @@ bool PatchROM(void)
ROMType = ROMTYPE_ZANZIBAR;
else if (!memcmp((void *)(ROM_BASE + 0x30d064), "Boot Gazelle", 12))
ROMType = ROMTYPE_GAZELLE;
else if (!memcmp((void *)(ROM_BASE + 0x30d064), "Boot Gossamer", 13))
ROMType = ROMTYPE_GOSSAMER;
else if (!memcmp((void *)(ROM_BASE + 0x30d064), "NewWorld", 8))
ROMType = ROMTYPE_NEWWORLD;
else
@ -767,12 +769,12 @@ static bool patch_nanokernel_boot(void)
lp[0xfd8 >> 2] = htonl(ROM_BASE + 0x2a); // 68k reset vector
// Skip SR/BAT/SDR init
if (ROMType == ROMTYPE_GAZELLE || ROMType == ROMTYPE_NEWWORLD) {
if (ROMType == ROMTYPE_GAZELLE || ROMType == ROMTYPE_GOSSAMER || ROMType == ROMTYPE_NEWWORLD) {
lp = (uint32 *)(ROM_BASE + 0x310000);
*lp++ = htonl(POWERPC_NOP);
*lp = htonl(0x38000000);
}
static const uint32 sr_init_loc[] = {0x3101b0, 0x3101b0, 0x3101b0, 0x3101ec, 0x310200};
static const uint32 sr_init_loc[] = {0x3101b0, 0x3101b0, 0x3101b0, 0x3101ec, 0x3101fc, 0x310200};
lp = (uint32 *)(ROM_BASE + 0x310008);
*lp = htonl(0x48000000 | (sr_init_loc[ROMType] - 8) & 0xffff); // b ROM_BASE+0x3101b0
lp = (uint32 *)(ROM_BASE + sr_init_loc[ROMType]);
@ -782,7 +784,7 @@ static bool patch_nanokernel_boot(void)
*lp = htonl(0x3de00010); // lis r15,0x0010 (size of kernel memory)
// Don't read PVR
static const uint32 pvr_loc[] = {0x3103b0, 0x3103b4, 0x3103b4, 0x310400, 0x310438};
static const uint32 pvr_loc[] = {0x3103b0, 0x3103b4, 0x3103b4, 0x310400, 0x310430, 0x310438};
lp = (uint32 *)(ROM_BASE + pvr_loc[ROMType]);
*lp = htonl(0x81800000 + XLM_PVR); // lwz r12,(theoretical PVR)
@ -930,11 +932,11 @@ static bool patch_nanokernel_boot(void)
*lp = htonl(POWERPC_NOP);
// Don't read PVR
static const uint32 pvr_ofs[] = {0x138, 0x138, 0x138, 0x140, 0x148};
static const uint32 pvr_ofs[] = {0x138, 0x138, 0x138, 0x140, 0x148, 0x148};
lp = (uint32 *)(ROM_BASE + loc + pvr_ofs[ROMType]);
*lp = htonl(0x82e00000 + XLM_PVR); // lwz r23,(theoretical PVR)
lp = (uint32 *)(ROM_BASE + loc + 0x170);
if (ntohl(*lp) == 0x7eff42a6) // NewWorld ROM
if (ntohl(*lp) == 0x7eff42a6) // NewWorld or Gossamer ROM
*lp = htonl(0x82e00000 + XLM_PVR); // lwz r23,(theoretical PVR)
lp = (uint32 *)(ROM_BASE + 0x313134);
if (ntohl(*lp) == 0x7e5f42a6)
@ -947,39 +949,39 @@ static bool patch_nanokernel_boot(void)
*lp = htonl(0x81200000 + XLM_PVR); // lzw r9,(theoritical PVR)
// Don't read SDR1
static const uint32 sdr1_ofs[] = {0x174, 0x174, 0x174, 0x17c, 0x19c};
static const uint32 sdr1_ofs[] = {0x174, 0x174, 0x174, 0x17c, 0x19c, 0x19c};
lp = (uint32 *)(ROM_BASE + loc + sdr1_ofs[ROMType]);
*lp++ = htonl(0x3d00dead); // lis r8,0xdead (pointer to page table)
*lp++ = htonl(0x3ec0001f); // lis r22,0x001f (size of page table)
*lp = htonl(POWERPC_NOP);
// Don't clear page table
static const uint32 pgtb_ofs[] = {0x198, 0x198, 0x198, 0x1a0, 0x1c4};
static const uint32 pgtb_ofs[] = {0x198, 0x198, 0x198, 0x1a0, 0x1c0, 0x1c4};
lp = (uint32 *)(ROM_BASE + loc + pgtb_ofs[ROMType]);
*lp = htonl(POWERPC_NOP);
// Don't invalidate TLB
static const uint32 tlb_ofs[] = {0x1a0, 0x1a0, 0x1a0, 0x1a8, 0x1cc};
static const uint32 tlb_ofs[] = {0x1a0, 0x1a0, 0x1a0, 0x1a8, 0x1c8, 0x1cc};
lp = (uint32 *)(ROM_BASE + loc + tlb_ofs[ROMType]);
*lp = htonl(POWERPC_NOP);
// Don't create RAM descriptor table
static const uint32 desc_ofs[] = {0x350, 0x350, 0x350, 0x358, 0x37c};
static const uint32 desc_ofs[] = {0x350, 0x350, 0x350, 0x358, 0x378, 0x37c};
lp = (uint32 *)(ROM_BASE + loc + desc_ofs[ROMType]);
*lp = htonl(POWERPC_NOP);
// Don't load SRs and BATs
static const uint32 sr_ofs[] = {0x3d8, 0x3d8, 0x3d8, 0x3e0, 0x404};
static const uint32 sr_ofs[] = {0x3d8, 0x3d8, 0x3d8, 0x3e0, 0x400, 0x404};
lp = (uint32 *)(ROM_BASE + loc + sr_ofs[ROMType]);
*lp = htonl(POWERPC_NOP);
// Don't mess with SRs
static const uint32 sr2_ofs[] = {0x312118, 0x312118, 0x312118, 0x312118, 0x3121b4};
static const uint32 sr2_ofs[] = {0x312118, 0x312118, 0x312118, 0x312118, 0x312118, 0x3121b4};
lp = (uint32 *)(ROM_BASE + sr2_ofs[ROMType]);
*lp = htonl(POWERPC_BLR);
// Don't check performance monitor
static const uint32 pm_ofs[] = {0x313148, 0x313148, 0x313148, 0x313148, 0x313218};
static const uint32 pm_ofs[] = {0x313148, 0x313148, 0x313148, 0x313148, 0x313158, 0x313218};
lp = (uint32 *)(ROM_BASE + pm_ofs[ROMType]);
while (ntohl(*lp) != 0x7e58eba6) lp++;
*lp++ = htonl(POWERPC_NOP);
@ -1015,7 +1017,7 @@ static bool patch_nanokernel_boot(void)
*lp++ = htonl(POWERPC_NOP);
// Jump to 68k emulator
static const uint32 jump68k_ofs[] = {0x40c, 0x40c, 0x40c, 0x414, 0x438};
static const uint32 jump68k_ofs[] = {0x40c, 0x40c, 0x40c, 0x414, 0x434, 0x438};
lp = (uint32 *)(ROM_BASE + loc + jump68k_ofs[ROMType]);
*lp++ = htonl(0x80610634); // lwz r3,0x0634(r1) (pointer to Emulator Data)
*lp++ = htonl(0x8081119c); // lwz r4,0x119c(r1) (pointer to opcode table)
@ -1036,7 +1038,7 @@ static bool patch_68k_emul(void)
uint32 base;
// Overwrite twi instructions
static const uint32 twi_loc[] = {0x36e680, 0x36e6c0, 0x36e6c0, 0x36e6c0, 0x36e740};
static const uint32 twi_loc[] = {0x36e680, 0x36e6c0, 0x36e6c0, 0x36e6c0, 0x36e740, 0x36e740};
base = twi_loc[ROMType];
lp = (uint32 *)(ROM_BASE + base);
*lp++ = htonl(0x48000000 + 0x36f900 - base); // b 0x36f900 (Emulator start)
@ -1418,10 +1420,22 @@ static bool patch_68k(void)
lp[0x28 >> 2] = htonl(0x00000861);
lp[0x58 >> 2] = htonl(0x30200000);
lp[0x60 >> 2] = htonl(0x0000003d);
} else if (ROMType == ROMTYPE_GOSSAMER) {
base = 0x12d20;
lp = (uint32 *)(ROM_BASE + base - 0x14);
lp[0x00 >> 2] = htonl(ADDR_MAP_PATCH_SPACE - (base - 0x14));
lp[0x10 >> 2] = htonl(0xcc003d11); // Make it like the PowerMac 9500 UniversalInfo
lp[0x14 >> 2] = htonl(0x3fff0401);
lp[0x18 >> 2] = htonl(0x0300001c);
lp[0x1c >> 2] = htonl(0x000108c4);
lp[0x24 >> 2] = htonl(0xc301bf26);
lp[0x28 >> 2] = htonl(0x00000861);
lp[0x58 >> 2] = htonl(0x30410000);
lp[0x60 >> 2] = htonl(0x0000003d);
}
// Construct AddrMap for NewWorld ROM
if (ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_ZANZIBAR) {
if (ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_GOSSAMER) {
lp = (uint32 *)(ROM_BASE + ADDR_MAP_PATCH_SPACE);
memset(lp - 10, 0, 0x128);
lp[-10] = htonl(0x0300001c);
@ -1547,8 +1561,15 @@ static bool patch_68k(void)
*wp++ = htons(M68K_EMUL_OP_XPRAM2);
*wp = htons(0x4ed3); // jmp (a3)
static const uint32 nvram3_loc[] = {0x582f0, 0xa0a0, 0x7e50, 0xa1d0, 0};
wp = (uint16 *)(ROM_BASE + nvram3_loc[ROMType]);
static const uint8 nvram3_dat[] = {0x4e, 0xd3, 0x06, 0x41, 0x13, 0x00};
if ((base = find_rom_data(0x7000, 0xb000, nvram3_dat, sizeof(nvram3_dat))) == 0) return false;
D(bug("nvram3 %08lx\n", base));
wp = (uint16 *)(ROM_BASE + base + 2);
*wp++ = htons(M68K_EMUL_OP_XPRAM3);
*wp = htons(0x4ed3); // jmp (a3)
static const uint32 nvram4_loc[] = {0x582f0, 0xa0a0, 0x7e50, 0xa1d0, 0x538d0, 0};
wp = (uint16 *)(ROM_BASE + nvram4_loc[ROMType]);
*wp++ = htons(0x202f); // move.l 4(sp),d0
*wp++ = htons(0x0004);
*wp++ = htons(M68K_EMUL_OP_NVRAM1);
@ -1561,8 +1582,8 @@ static bool patch_68k(void)
*wp = htons(0x0004);
}
static const uint32 nvram4_loc[] = {0x58460, 0xa0f0, 0x7f40, 0xa220, 0};
wp = (uint16 *)(ROM_BASE + nvram4_loc[ROMType]);
static const uint32 nvram5_loc[] = {0x58460, 0xa0f0, 0x7f40, 0xa220, 0x53a20, 0};
wp = (uint16 *)(ROM_BASE + nvram5_loc[ROMType]);
if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_GAZELLE) {
*wp++ = htons(0x202f); // move.l 4(sp),d0
*wp++ = htons(0x0004);
@ -1739,6 +1760,8 @@ static bool patch_68k(void)
if ((base = find_rom_data(0x13000, 0x20000, gc_mask2_dat, sizeof(gc_mask2_dat))) == 0) return false;
D(bug("gc_mask2 %08lx\n", base));
wp = (uint16 *)(ROM_BASE + base);
if (ROMType == ROMTYPE_GOSSAMER)
*wp++ = htons(M68K_NOP);
for (int i=0; i<5; i++) {
*wp++ = htons(M68K_NOP);
*wp++ = htons(M68K_NOP);
@ -1746,7 +1769,7 @@ static bool patch_68k(void)
*wp++ = htons(M68K_NOP);
wp += 2;
}
if (ROMType == ROMTYPE_ZANZIBAR) {
if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_GOSSAMER) {
for (int i=0; i<6; i++) {
*wp++ = htons(M68K_NOP);
*wp++ = htons(M68K_NOP);
@ -1823,13 +1846,21 @@ static bool patch_68k(void)
static const uint8 tm_task_dat[] = {0x30, 0x3c, 0x4e, 0x2b, 0xa9, 0xc9};
if ((base = find_rom_data(0x2e0, 0x320, tm_task_dat, sizeof(tm_task_dat))) == 0) return false;
D(bug("tm_task %08lx\n", base));
wp = (uint16 *)(ROM_BASE + base + 28);
wp = (uint16 *)(ROM_BASE + base + 28); // FIXME: this is not right for all nw ROMs
*wp++ = htons(M68K_NOP);
*wp++ = htons(M68K_NOP);
*wp++ = htons(M68K_NOP);
*wp++ = htons(M68K_NOP);
*wp++ = htons(M68K_NOP);
*wp = htons(M68K_NOP);
} else if (ROMType == ROMTYPE_GOSSAMER) {
static const uint8 tm_task_dat[] = {0x30, 0x3c, 0x4e, 0x2b, 0xa9, 0xc9};
if ((base = find_rom_data(0x2a0, 0x2e0, tm_task_dat, sizeof(tm_task_dat))) == 0) return false;
D(bug("tm_task %08lx\n", base));
wp = (uint16 *)(ROM_BASE + base + 22);
*wp++ = htons(M68K_NOP);
*wp++ = htons(M68K_NOP);
*wp++ = htons(M68K_NOP);
} else {
static const uint8 tm_task_dat[] = {0x20, 0x3c, 0x73, 0x79, 0x73, 0x61};
if ((base = find_rom_data(0x280, 0x300, tm_task_dat, sizeof(tm_task_dat))) == 0) return false;
@ -1841,7 +1872,7 @@ static bool patch_68k(void)
}
// Don't read PVR from 0x5fffef80 in DriverServicesLib (via 0x316)
if (ROMType != ROMTYPE_NEWWORLD) {
if (ROMType != ROMTYPE_NEWWORLD && ROMType != ROMTYPE_GOSSAMER) {
uint32 dsl_offset = find_rom_resource(FOURCC('n','l','i','b'), -16401);
if (ROMType == ROMTYPE_ZANZIBAR) {
static const uint8 dsl_pvr_dat[] = {0x40, 0x82, 0x00, 0x40, 0x38, 0x60, 0xef, 0x80, 0x3c, 0x63, 0x60, 0x00, 0x80, 0x83, 0x00, 0x00, 0x54, 0x84, 0x84, 0x3e};
@ -1927,7 +1958,23 @@ static bool patch_68k(void)
D(bug("scsi_var2 %08lx\n", base));
wp = (uint16 *)(ROM_BASE + base);
*wp++ = htons(0x7000); // moveq #0,d0
*wp = htons(M68K_RTS); // bra
*wp = htons(M68K_RTS);
}
}
else if (ROMType == ROMTYPE_GOSSAMER) {
static const uint8 scsi_var_dat[] = {0x70, 0x01, 0xa0, 0x89, 0x4a, 0x6e, 0xfe, 0xac, 0x4f, 0xef, 0x00, 0x10, 0x66, 0x00};
if ((base = find_rom_data(0x1d700, 0x1d800, scsi_var_dat, sizeof(scsi_var_dat))) != 0) {
D(bug("scsi_var %08lx\n", base));
wp = (uint16 *)(ROM_BASE + base + 12);
*wp = htons(0x6000); // bra
}
static const uint8 scsi_var2_dat[] = {0x4e, 0x56, 0xfc, 0x5a, 0x48, 0xe7, 0x1f, 0x38};
if ((base = find_rom_data(0x1d900, 0x1da00, scsi_var2_dat, sizeof(scsi_var2_dat))) != 0) {
D(bug("scsi_var2 %08lx\n", base));
wp = (uint16 *)(ROM_BASE + base);
*wp++ = htons(0x7000); // moveq #0,d0
*wp = htons(M68K_RTS);
}
}
#endif
@ -2007,7 +2054,7 @@ static bool patch_68k(void)
*wp = htons(M68K_RTS);
// Don't install serial drivers from ROM
if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_NEWWORLD) {
if (ROMType == ROMTYPE_ZANZIBAR || ROMType == ROMTYPE_NEWWORLD || ROMType == ROMTYPE_GOSSAMER) {
wp = (uint16 *)(ROM_BASE + find_rom_resource(FOURCC('S','E','R','D'), 0));
*wp = htons(M68K_RTS);
} else {