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/* |
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* sysdeps.h - System dependent definitions for Unix |
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* |
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* Basilisk II (C) 1997-1999 Christian Bauer |
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* Basilisk II (C) 1997-2002 Christian Bauer |
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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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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <pthread.h> |
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#ifdef HAVE_PTHREADS |
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# include <pthread.h> |
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#endif |
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#ifdef HAVE_FCNTL_H |
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# include <fcntl.h> |
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#endif |
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/* Are the Mac and the host address space the same? */ |
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#ifdef ENABLE_NATIVE_M68K |
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/* Mac and host address space are the same */ |
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#define REAL_ADDRESSING 1 |
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/* Using 68k natively */ |
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#define EMULATED_68K 0 |
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/* Mac ROM is not write protected */ |
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#define ROM_IS_WRITE_PROTECTED 0 |
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#define USE_SCRATCHMEM_SUBTERFUGE 1 |
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#else |
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/* Mac and host address space are distinct */ |
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#ifndef REAL_ADDRESSING |
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#define REAL_ADDRESSING 0 |
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#endif |
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/* Are we using a 68k emulator or the real thing? */ |
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/* Using 68k emulator */ |
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#define EMULATED_68K 1 |
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/* Is the Mac ROM write protected? */ |
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#define ROM_IS_WRITE_PROTECTED 1 |
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/* The m68k emulator uses a prefetch buffer ? */ |
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#define USE_PREFETCH_BUFFER 0 |
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/* Mac ROM is write protected when banked memory is used */ |
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#if REAL_ADDRESSING || DIRECT_ADDRESSING |
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# define ROM_IS_WRITE_PROTECTED 0 |
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# define USE_SCRATCHMEM_SUBTERFUGE 1 |
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#else |
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# define ROM_IS_WRITE_PROTECTED 1 |
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#endif |
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#endif |
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/* Direct Addressing requires Video on SEGV signals */ |
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#if DIRECT_ADDRESSING && !ENABLE_VOSF |
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# undef ENABLE_VOSF |
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# define ENABLE_VOSF 1 |
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#endif |
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/* ExtFS is supported */ |
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#define SUPPORTS_EXTFS 1 |
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/* BSD socket API supported */ |
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#define SUPPORTS_UDP_TUNNEL 1 |
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/* Data types */ |
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typedef unsigned char uint8; |
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typedef signed char int8; |
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#else |
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#error "No 8 byte type, you lose." |
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#endif |
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#if SIZEOF_VOID_P == 4 |
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typedef uint32 uintptr; |
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typedef int32 intptr; |
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#elif SIZEOF_VOID_P == 8 |
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typedef uint64 uintptr; |
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typedef int64 intptr; |
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#else |
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#error "Unsupported size of pointer" |
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#endif |
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/* Time data type for Time Manager emulation */ |
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#ifdef HAVE_CLOCK_GETTIME |
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typedef struct timeval tm_time_t; |
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#endif |
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/* Offset Mac->Unix time in seconds */ |
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#define TIME_OFFSET 0x7c25b080 |
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/* Define codes for all the float formats that we know of. |
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* Though we only handle IEEE format. */ |
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#define UNKNOWN_FLOAT_FORMAT 0 |
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#define IEEE_FLOAT_FORMAT 1 |
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#define VAX_FLOAT_FORMAT 2 |
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#define IBM_FLOAT_FORMAT 3 |
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#define C4X_FLOAT_FORMAT 4 |
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/* UAE CPU data types */ |
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#define uae_s8 int8 |
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typedef uae_u32 uaecptr; |
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/* Alignment restrictions */ |
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#if defined(__i386__) || defined(__powerpc__) || defined(__m68k__) |
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#if defined(__i386__) || defined(__powerpc__) || defined(__m68k__) || defined(__x86_64__) |
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# define CPU_CAN_ACCESS_UNALIGNED |
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#endif |
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/* Timing functions */ |
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extern uint64 GetTicks_usec(void); |
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extern void Delay_usec(uint32 usec); |
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#ifdef HAVE_PTHREADS |
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/* Centralized pthread attribute setup */ |
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void Set_pthread_attr(pthread_attr_t *attr, int priority); |
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#endif |
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/* UAE CPU defines */ |
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#ifdef WORDS_BIGENDIAN |
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#else /* WORDS_BIGENDIAN */ |
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#ifdef __i386__ |
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#if defined(__i386__) || defined(__x86_64__) |
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/* Intel x86 */ |
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#define X86_PPRO_OPT |
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#else |
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static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); *a = v;} |
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#endif |
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#define HAVE_OPTIMIZED_BYTESWAP_32 |
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/* bswap doesn't affect condition codes */ |
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static inline uae_u32 do_byteswap_32(uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v)); return v;} |
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#define HAVE_OPTIMIZED_BYTESWAP_16 |
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#ifdef X86_PPRO_OPT |
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static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); return v;} |
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#else |
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static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;} |
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#endif |
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#elif defined(CPU_CAN_ACCESS_UNALIGNED) |
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#endif /* WORDS_BIGENDIAN */ |
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#ifndef HAVE_OPTIMIZED_BYTESWAP_32 |
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static inline uae_u32 do_byteswap_32(uae_u32 v) |
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{ return (((v >> 24) & 0xff) | ((v >> 8) & 0xff00) | ((v & 0xff) << 24) | ((v & 0xff00) << 8)); } |
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#endif |
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#ifndef HAVE_OPTIMIZED_BYTESWAP_16 |
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static inline uae_u32 do_byteswap_16(uae_u32 v) |
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{ return (((v >> 8) & 0xff) | ((v & 0xff) << 8)); } |
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#endif |
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#define do_get_mem_byte(a) ((uae_u32)*((uae_u8 *)(a))) |
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#define do_put_mem_byte(a, v) (*(uae_u8 *)(a) = (v)) |
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#define call_mem_put_func(func, addr, v) ((*func)(addr, v)) |
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#define __inline__ inline |
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#define CPU_EMU_SIZE 0 |
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#undef USE_MAPPED_MEMORY |
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#undef CAN_MAP_MEMORY |
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#undef NO_INLINE_MEMORY_ACCESS |
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#undef MD_HAVE_MEM_1_FUNCS |
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#undef USE_COMPILER |
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#define ENUMDECL typedef enum |
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#define ENUMNAME(name) name |
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#define write_log printf |
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#ifdef X86_ASSEMBLY |
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#if defined(X86_ASSEMBLY) || defined(X86_64_ASSEMBLY) |
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#define ASM_SYM_FOR_FUNC(a) __asm__(a) |
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#else |
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#define ASM_SYM_FOR_FUNC(a) |
