/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ typedef unsigned char UInt8; typedef unsigned short UInt16; typedef unsigned long UInt32; /* Support firmware CallPseudoKernel architectural extension */ struct CallPseudoKernelDescriptor { UInt32 pc; UInt32 gpr0; UInt32 intControlAddr; UInt32 newState; UInt32 intStateMask; UInt32 intCR2Mask; UInt32 intCR2Shift; UInt32 sysContextState; }; typedef struct CallPseudoKernelDescriptor CallPseudoKernelDescriptor; typedef CallPseudoKernelDescriptor * CallPseudoKernelDescriptorPtr; typedef CallPseudoKernelDescriptor CPKD_t; /* Support firmware ExitPseudoKernel architectural extension */ struct ExitPseudoKernelDescriptor { UInt32 pc; UInt32 sp; UInt32 gpr0; UInt32 gpr3; UInt32 cr; UInt32 intControlAddr; UInt32 newState; UInt32 intStateMask; UInt32 intCR2Mask; UInt32 intCR2Shift; UInt32 sysContextState; UInt32 intPendingMask; UInt32 intPendingPC; UInt32 msrUpdate; }; typedef struct ExitPseudoKernelDescriptor ExitPseudoKernelDescriptor; typedef ExitPseudoKernelDescriptor * ExitPseudoKernelDescriptorPtr; typedef ExitPseudoKernelDescriptor EPKD_t; struct EmulatorDescriptor { UInt8 regMap[16]; // table mapping 68K D0..D7, A0..A7 register to PowerPC registers UInt32 bootstrapVersionOffset; // offset within emulator data page of the bootstrap version string UInt32 ecbOffset; // offset within emulator data page of the ECB UInt32 intModeLevelOffset; // offset within emulator data page of the interrupt mode level UInt32 entryAddress; // offset within text of the emulator's main entry point UInt32 kcallTrapTableOffset; // offset within text of the nanokernel(!) call trap table UInt32 postIntMask; // post interrupt mask UInt32 clearIntMask; // clear interrupt mask UInt32 testIntMask; // test interrupt mask UInt32 codeSize; // total size of emulator object code (interpretive + DR) UInt32 hashTableSize; // size of DR emulator's hash table UInt32 drCodeStartOffset; // offset within text of the DR emulator's object code UInt32 drInitOffset; // offset within DR emulator of its initialization entry point UInt32 drAllocateCache; // offset within DR emulator of its cache allocation entry point UInt32 dispatchTableOffset; // offset within text of the encoded instruction dispatch table }; typedef struct EmulatorDescriptor EmulatorDescriptor; typedef EmulatorDescriptor *EmulatorDescriptorPtr; enum { // The following define the UInt32 gInterruptState kInUninitialized = 0, // State not yet initialized kInPseudoKernel = 1, // Currently executing within pseudo kernel kInSystemContext = 2, // Currently executing within the system (emulator) context kInAlternateContext = 3, // Currently executing within an alternate (native) context kInExceptionHandler = 4, // Currently executing an exception handler kOutsideMain = 5, // Currently executing outside of the main thread kNotifyPending = 6, // Pending Notify Interrupt kInterruptStateMask = 0x000F0000, // Mask to extract interrupt state from gInterruptState kInterruptStateShift = 16, // Shift count to align interrupt state kBackupCR2Mask = 0x0000000F, // Mask to extract backup CR2 from gInterruptState kCR2ToBackupShift = 31-11, // Shift count to align CR2 into the backup CR2 of gInterruptState // (and vice versa) kCR2Mask = 0x00F00000 // Mask to extract CR2 from the PPC CR register }; enum { kcReturnFromException = 0, kcRunAlternateContext = 1, kcResetSystem = 2, kcVMDispatch = 3, kcPrioritizeInterrupts = 4, kcPowerDispatch = 5, kcRTASDispatch = 6, kcGetAdapterProcPtrsPPC = 12, kcGetAdapterProcPtrs = 13, kcCallAdapterProc = 14, kcSystemCrash = 15 }; #define bbMaxCode 16