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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) 1997-2000 Christian Bauer |
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* Basilisk II (C) 1997-2001 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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/* 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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/* Using 68k emulator */ |
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#define EMULATED_68K 1 |
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/* Mac ROM is 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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#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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# 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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/* UAE CPU defines */ |
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#ifdef WORDS_BIGENDIAN |
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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 ENUMNAME(name) name |
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#define write_log printf |
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#ifdef USE_COMPILER |
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#define USE_MAPPED_MEMORY |
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#define CAN_MAP_MEMORY |
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#define NO_EXCEPTION_3 |
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#define NO_PREFETCH_BUFFER |
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#else |
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#undef USE_MAPPED_MEMORY |
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#undef CAN_MAP_MEMORY |
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#endif |
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#ifdef X86_ASSEMBLY |
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#define ASM_SYM_FOR_FUNC(a) __asm__(a) |
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#else |
