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/* |
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* macos_util.h - MacOS definitions/utility functions |
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* |
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* SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig |
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* SheepShaver (C) 1997-2008 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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#define MACOS_UTIL_H |
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#include "cpu_emulation.h" |
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#include "thunks.h" |
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#include <stddef.h> |
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/* |
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typedef uint32 ProcInfoType; |
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typedef int8 ISAType; |
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typedef uint16 RoutineFlagsType; |
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typedef long (*ProcPtr)(); |
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typedef uint32 ProcPtr; |
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typedef uint8 RDFlagsType; |
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struct RoutineRecord { |
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RoutineRecord routineRecords[1]; /* The individual routines */ |
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}; |
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#define BUILD_PPC_ROUTINE_DESCRIPTOR(procInfo, procedure) \ |
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{ \ |
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htons(0xAAFE), /* Mixed Mode A-Trap */ \ |
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7, /* version */ \ |
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0, /* RD Flags - not dispatched */ \ |
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0, /* reserved 1 */ \ |
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0, /* reserved 2 */ \ |
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0, /* selector info */ \ |
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0, /* number of routines */ \ |
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{ /* It's an array */ \ |
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{ /* It's a struct */ \ |
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htonl(procInfo), /* the ProcInfo */ \ |
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0, /* reserved */ \ |
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1, /* ISA and RTA */ \ |
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htons(0 | /* Flags - it's absolute addr */\ |
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0 | /* It's prepared */ \ |
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4 ), /* Always use native ISA */ \ |
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(ProcPtr)htonl((uint32)procedure), /* the procedure */ \ |
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0, /* reserved */ \ |
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0 /* Not dispatched */ \ |
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} \ |
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} \ |
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struct SheepRoutineDescriptor |
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: public SheepVar |
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{ |
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SheepRoutineDescriptor(ProcInfoType procInfo, uint32 procedure) |
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: SheepVar(sizeof(RoutineDescriptor)) |
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{ |
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const uintptr desc = addr(); |
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Mac_memset(desc, 0, sizeof(RoutineDescriptor)); |
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WriteMacInt16(desc + offsetof(RoutineDescriptor, goMixedModeTrap), 0xAAFE); |
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WriteMacInt8 (desc + offsetof(RoutineDescriptor, version), 7); |
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WriteMacInt32(desc + offsetof(RoutineDescriptor, routineRecords) + offsetof(RoutineRecord, procInfo), procInfo); |
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WriteMacInt8 (desc + offsetof(RoutineDescriptor, routineRecords) + offsetof(RoutineRecord, ISA), 1); |
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WriteMacInt16(desc + offsetof(RoutineDescriptor, routineRecords) + offsetof(RoutineRecord, routineFlags), 0 | 0 | 4); |
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WriteMacInt32(desc + offsetof(RoutineDescriptor, routineRecords) + offsetof(RoutineRecord, procDescriptor), procedure); |
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} |
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}; |
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// Functions |
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extern int FindFreeDriveNumber(int num); // Find first free drive number, starting at "num" |
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extern void MountVolume(void *fh); // Mount volume with given file handle (see sys.h) |
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extern void FileDiskLayout(loff_t size, uint8 *data, loff_t &start_byte, loff_t &real_size); // Calculate disk image file layout given file size and first 256 data bytes |
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extern void *FindLibSymbol(char *lib, char *sym); // Find symbol in shared library |
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extern uint32 FindLibSymbol(char *lib, char *sym); // Find symbol in shared library |
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extern void InitCallUniversalProc(void); // Init CallUniversalProc() |
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extern long CallUniversalProc(void *upp, uint32 info); // CallUniversalProc() |
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extern uint32 TimeToMacTime(time_t t); // Convert time_t value to MacOS time |
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extern uint32 Mac_sysalloc(uint32 size); // Allocate block in MacOS system heap zone |
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extern void Mac_sysfree(uint32 addr); // Release block occupied by the nonrelocatable block p |
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// Construct four-character-code from string |
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#define FOURCC(a,b,c,d) (((uint32)(a) << 24) | ((uint32)(b) << 16) | ((uint32)(c) << 8) | (uint32)(d)) |
