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gbeauche |
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/* |
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* main.cpp - ROM patches |
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* |
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* SheepShaver (C) 1997-2004 Christian Bauer and Marc Hellwig |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include "sysdeps.h" |
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#include "main.h" |
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#include "version.h" |
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#include "prefs.h" |
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#include "prefs_editor.h" |
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#include "cpu_emulation.h" |
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#include "emul_op.h" |
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#include "xlowmem.h" |
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#include "xpram.h" |
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#include "timer.h" |
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#include "adb.h" |
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#include "sony.h" |
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#include "disk.h" |
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#include "cdrom.h" |
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#include "scsi.h" |
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#include "video.h" |
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#include "audio.h" |
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#include "ether.h" |
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#include "serial.h" |
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#include "clip.h" |
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#include "extfs.h" |
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#include "sys.h" |
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#include "macos_util.h" |
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#include "rom_patches.h" |
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#include "user_strings.h" |
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#include "vm_alloc.h" |
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#include "sigsegv.h" |
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#include "thunks.h" |
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#define DEBUG 0 |
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#include "debug.h" |
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#ifdef ENABLE_MON |
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#include "mon.h" |
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static uint32 sheepshaver_read_byte(uintptr adr) |
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{ |
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return ReadMacInt8(adr); |
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} |
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static void sheepshaver_write_byte(uintptr adr, uint32 b) |
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{ |
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WriteMacInt8(adr, b); |
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} |
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#endif |
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/* |
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* Initialize everything, returns false on error |
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*/ |
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bool InitAll(void) |
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{ |
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// Load NVRAM |
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XPRAMInit(); |
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// Load XPRAM default values if signature not found |
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if (XPRAM[0x130c] != 0x4e || XPRAM[0x130d] != 0x75 |
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|| XPRAM[0x130e] != 0x4d || XPRAM[0x130f] != 0x63) { |
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D(bug("Loading XPRAM default values\n")); |
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memset(XPRAM + 0x1300, 0, 0x100); |
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XPRAM[0x130c] = 0x4e; // "NuMc" signature |
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XPRAM[0x130d] = 0x75; |
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XPRAM[0x130e] = 0x4d; |
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XPRAM[0x130f] = 0x63; |
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XPRAM[0x1301] = 0x80; // InternalWaitFlags = DynWait (don't wait for SCSI devices upon bootup) |
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XPRAM[0x1310] = 0xa8; // Standard PRAM values |
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XPRAM[0x1311] = 0x00; |
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XPRAM[0x1312] = 0x00; |
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XPRAM[0x1313] = 0x22; |
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XPRAM[0x1314] = 0xcc; |
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XPRAM[0x1315] = 0x0a; |
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XPRAM[0x1316] = 0xcc; |
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XPRAM[0x1317] = 0x0a; |
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XPRAM[0x131c] = 0x00; |
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XPRAM[0x131d] = 0x02; |
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XPRAM[0x131e] = 0x63; |
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XPRAM[0x131f] = 0x00; |
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XPRAM[0x1308] = 0x13; |
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XPRAM[0x1309] = 0x88; |
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XPRAM[0x130a] = 0x00; |
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XPRAM[0x130b] = 0xcc; |
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XPRAM[0x1376] = 0x00; // OSDefault = MacOS |
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XPRAM[0x1377] = 0x01; |
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} |
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// Set boot volume |
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int16 i16 = PrefsFindInt32("bootdrive"); |
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XPRAM[0x1378] = i16 >> 8; |
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XPRAM[0x1379] = i16 & 0xff; |
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i16 = PrefsFindInt32("bootdriver"); |
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XPRAM[0x137a] = i16 >> 8; |
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XPRAM[0x137b] = i16 & 0xff; |
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// Create BootGlobs at top of Mac memory |
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memset(RAMBaseHost + RAMSize - 4096, 0, 4096); |
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BootGlobsAddr = RAMBase + RAMSize - 0x1c; |
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WriteMacInt32(BootGlobsAddr - 5 * 4, RAMBase + RAMSize); // MemTop |
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WriteMacInt32(BootGlobsAddr + 0 * 4, RAMBase); // First RAM bank |
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WriteMacInt32(BootGlobsAddr + 1 * 4, RAMSize); |
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WriteMacInt32(BootGlobsAddr + 2 * 4, (uint32)-1); // End of bank table |
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// Init thunks |
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if (!ThunksInit()) |
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return false; |
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// Init drivers |
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SonyInit(); |
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DiskInit(); |
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CDROMInit(); |
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SCSIInit(); |
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// Init external file system |
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ExtFSInit(); |
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// Init ADB |
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ADBInit(); |
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// Init audio |
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AudioInit(); |
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// Init network |
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EtherInit(); |
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// Init serial ports |
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SerialInit(); |
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// Init Time Manager |
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TimerInit(); |
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// Init clipboard |
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ClipInit(); |
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// Init video |
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if (!VideoInit()) |
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return false; |
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// Install ROM patches |
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if (!PatchROM()) { |
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ErrorAlert(GetString(STR_UNSUPPORTED_ROM_TYPE_ERR)); |
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return false; |
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} |
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// Initialize Kernel Data |
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KernelData *kernel_data = (KernelData *)Mac2HostAddr(KERNEL_DATA_BASE); |
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memset(kernel_data, 0, sizeof(KernelData)); |
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if (ROMType == ROMTYPE_NEWWORLD) { |
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uint32 of_dev_tree = SheepMem::Reserve(4 * sizeof(uint32)); |
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Mac_memset(of_dev_tree, 0, 4 * sizeof(uint32)); |
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uint32 vector_lookup_tbl = SheepMem::Reserve(128); |
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uint32 vector_mask_tbl = SheepMem::Reserve(64); |
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memset((uint8 *)kernel_data + 0xb80, 0x3d, 0x80); |
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Mac_memset(vector_lookup_tbl, 0, 128); |
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Mac_memset(vector_mask_tbl, 0, 64); |
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kernel_data->v[0xb80 >> 2] = htonl(ROM_BASE); |
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kernel_data->v[0xb84 >> 2] = htonl(of_dev_tree); // OF device tree base |
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kernel_data->v[0xb90 >> 2] = htonl(vector_lookup_tbl); |
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kernel_data->v[0xb94 >> 2] = htonl(vector_mask_tbl); |
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kernel_data->v[0xb98 >> 2] = htonl(ROM_BASE); // OpenPIC base |
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kernel_data->v[0xbb0 >> 2] = htonl(0); // ADB base |
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kernel_data->v[0xc20 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc24 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc30 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc34 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc38 >> 2] = htonl(0x00010020); |
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kernel_data->v[0xc3c >> 2] = htonl(0x00200001); |
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kernel_data->v[0xc40 >> 2] = htonl(0x00010000); |
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kernel_data->v[0xc50 >> 2] = htonl(RAMBase); |
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kernel_data->v[0xc54 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xf60 >> 2] = htonl(PVR); |
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kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed); // clock-frequency |
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kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed); // bus-frequency |
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kernel_data->v[0xf6c >> 2] = htonl(TimebaseSpeed); // timebase-frequency |
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} else if (ROMType == ROMTYPE_GOSSAMER) { |
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kernel_data->v[0xc80 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc84 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc90 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc94 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc98 >> 2] = htonl(0x00010020); |
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kernel_data->v[0xc9c >> 2] = htonl(0x00200001); |
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kernel_data->v[0xca0 >> 2] = htonl(0x00010000); |
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kernel_data->v[0xcb0 >> 2] = htonl(RAMBase); |
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kernel_data->v[0xcb4 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xf60 >> 2] = htonl(PVR); |
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kernel_data->v[0xf64 >> 2] = htonl(CPUClockSpeed); // clock-frequency |
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kernel_data->v[0xf68 >> 2] = htonl(BusClockSpeed); // bus-frequency |
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kernel_data->v[0xf6c >> 2] = htonl(TimebaseSpeed); // timebase-frequency |
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} else { |
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kernel_data->v[0xc80 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc84 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc90 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc94 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xc98 >> 2] = htonl(0x00010020); |
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kernel_data->v[0xc9c >> 2] = htonl(0x00200001); |
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kernel_data->v[0xca0 >> 2] = htonl(0x00010000); |
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kernel_data->v[0xcb0 >> 2] = htonl(RAMBase); |
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kernel_data->v[0xcb4 >> 2] = htonl(RAMSize); |
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kernel_data->v[0xf80 >> 2] = htonl(PVR); |
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kernel_data->v[0xf84 >> 2] = htonl(CPUClockSpeed); // clock-frequency |
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kernel_data->v[0xf88 >> 2] = htonl(BusClockSpeed); // bus-frequency |
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kernel_data->v[0xf8c >> 2] = htonl(TimebaseSpeed); // timebase-frequency |
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} |
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// Initialize extra low memory |
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D(bug("Initializing Low Memory...\n")); |
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Mac_memset(0, 0, 0x3000); |
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WriteMacInt32(XLM_SIGNATURE, FOURCC('B','a','a','h')); // Signature to detect SheepShaver |
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WriteMacInt32(XLM_KERNEL_DATA, KernelDataAddr); // For trap replacement routines |
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WriteMacInt32(XLM_PVR, PVR); // Theoretical PVR |
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WriteMacInt32(XLM_BUS_CLOCK, BusClockSpeed); // For DriverServicesLib patch |
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WriteMacInt16(XLM_EXEC_RETURN_OPCODE, M68K_EXEC_RETURN); // For Execute68k() (RTS from the executed 68k code will jump here and end 68k mode) |
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WriteMacInt32(XLM_ZERO_PAGE, SheepMem::ZeroPage()); // Pointer to read-only page with all bits set to 0 |
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#if !EMULATED_PPC |
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WriteMacInt32(XLM_TOC, (uint32)TOC); // TOC pointer of emulator |
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#endif |
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WriteMacInt32(XLM_ETHER_INIT, NativeFunction(NATIVE_ETHER_INIT)); // DLPI ethernet driver functions |
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WriteMacInt32(XLM_ETHER_TERM, NativeFunction(NATIVE_ETHER_TERM)); |
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WriteMacInt32(XLM_ETHER_OPEN, NativeFunction(NATIVE_ETHER_OPEN)); |
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WriteMacInt32(XLM_ETHER_CLOSE, NativeFunction(NATIVE_ETHER_CLOSE)); |
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WriteMacInt32(XLM_ETHER_WPUT, NativeFunction(NATIVE_ETHER_WPUT)); |
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WriteMacInt32(XLM_ETHER_RSRV, NativeFunction(NATIVE_ETHER_RSRV)); |
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WriteMacInt32(XLM_VIDEO_DOIO, NativeFunction(NATIVE_VIDEO_DO_DRIVER_IO)); |
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D(bug("Low Memory initialized\n")); |
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#if ENABLE_MON |
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// Initialize mon |
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mon_init(); |
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mon_read_byte = sheepshaver_read_byte; |
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mon_write_byte = sheepshaver_write_byte; |
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#endif |
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return true; |
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} |
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/* |
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* Deinitialize everything |
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*/ |
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void ExitAll(void) |
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{ |
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#if ENABLE_MON |
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// Deinitialize mon |
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mon_exit(); |
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#endif |
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// Save NVRAM |
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XPRAMExit(); |
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// Exit clipboard |
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ClipExit(); |
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// Exit Time Manager |
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TimerExit(); |
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// Exit serial |
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SerialExit(); |
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// Exit network |
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EtherExit(); |
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// Exit audio |
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AudioExit(); |
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// Exit ADB |
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ADBExit(); |
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// Exit video |
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VideoExit(); |
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// Exit external file system |
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ExtFSExit(); |
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// Exit drivers |
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SCSIExit(); |
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CDROMExit(); |
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DiskExit(); |
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SonyExit(); |
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// Delete thunks |
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ThunksExit(); |
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} |
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/* |
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* Patch things after system startup (gets called by disk driver accRun routine) |
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*/ |
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void PatchAfterStartup(void) |
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{ |
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ExecuteNative(NATIVE_VIDEO_INSTALL_ACCEL); |
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InstallExtFS(); |
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} |
