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gbeauche |
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/* |
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* sysdeps.h - System dependent definitions for Windows |
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* |
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* Basilisk II (C) 1997-2005 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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* 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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#ifndef SYSDEPS_H |
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#define SYSDEPS_H |
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#ifndef __STDC__ |
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#error "Your compiler is not ANSI. Get a real one." |
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#endif |
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#include "config.h" |
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#include "user_strings_windows.h" |
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#ifndef STDC_HEADERS |
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#error "You don't have ANSI C header files." |
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#endif |
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#ifndef WIN32 |
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#define WIN32 |
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#endif |
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#include <assert.h> |
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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 <time.h> |
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#ifdef __WIN32__ |
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#include <windows.h> |
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#endif |
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#include <sys/types.h> |
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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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#if REAL_ADDRESSING |
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#error "Real Addressing mode can't work without proper kernel support" |
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#endif |
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/* Using 68k emulator */ |
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#define EMULATED_68K 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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/* Direct Addressing requires Video on SEGV signals in plain X11 mode */ |
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#if DIRECT_ADDRESSING && (!ENABLE_VOSF && !USE_SDL_VIDEO) |
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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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/* Data types */ |
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typedef unsigned char uint8; |
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typedef signed char int8; |
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#if SIZEOF_SHORT == 2 |
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typedef unsigned short uint16; |
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typedef short int16; |
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#elif SIZEOF_INT == 2 |
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typedef unsigned int uint16; |
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typedef int int16; |
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#else |
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#error "No 2 byte type, you lose." |
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#endif |
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#if SIZEOF_INT == 4 |
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typedef unsigned int uint32; |
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typedef int int32; |
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#elif SIZEOF_LONG == 4 |
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typedef unsigned long uint32; |
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typedef long int32; |
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#else |
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#error "No 4 byte type, you lose." |
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#endif |
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#if SIZEOF_LONG == 8 |
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typedef unsigned long uint64; |
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typedef long int64; |
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#define VAL64(a) (a ## l) |
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#define UVAL64(a) (a ## ul) |
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#elif SIZEOF_LONG_LONG == 8 |
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typedef unsigned long long uint64; |
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typedef long long int64; |
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#define VAL64(a) (a ## LL) |
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#define UVAL64(a) (a ## uLL) |
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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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#ifdef __WIN32__ |
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typedef int64 loff_t; |
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#endif |
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#ifndef HAVE_CADDR_T |
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typedef char * caddr_t; |
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#endif |
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/* Time data type for Time Manager emulation */ |
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typedef int64 tm_time_t; |
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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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#define uae_u8 uint8 |
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#define uae_s16 int16 |
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#define uae_u16 uint16 |
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#define uae_s32 int32 |
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#define uae_u32 uint32 |
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#define uae_s64 int64 |
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#define uae_u64 uint64 |
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typedef uae_u32 uaecptr; |
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/* Timing functions */ |
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extern void timer_init(void); |
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extern uint64 GetTicks_usec(void); |
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extern void Delay_usec(uint32 usec); |
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/* Spinlocks */ |
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#ifdef __GNUC__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(volatile int *p) |
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{ |
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long int ret; |
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/* Note: the "xchg" instruction does not need a "lock" prefix */ |
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__asm__ __volatile__("xchgl %k0, %1" |
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: "=r" (ret), "=m" (*p) |
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: "0" (1), "m" (*p) |
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: "memory"); |
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return ret; |
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} |
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#endif /* __GNUC__ */ |
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typedef volatile int spinlock_t; |
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static const spinlock_t SPIN_LOCK_UNLOCKED = 0; |
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#if HAVE_TEST_AND_SET |
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#define HAVE_SPINLOCKS 1 |
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static inline void spin_lock(spinlock_t *lock) |
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{ |
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while (testandset(lock)); |
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} |
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static inline void spin_unlock(spinlock_t *lock) |
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{ |
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*lock = 0; |
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} |
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static inline int spin_trylock(spinlock_t *lock) |
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{ |
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return !testandset(lock); |
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} |
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#else |
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static inline void spin_lock(spinlock_t *lock) |
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{ |
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} |
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static inline void spin_unlock(spinlock_t *lock) |
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{ |
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} |
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static inline int spin_trylock(spinlock_t *lock) |
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{ |
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return 1; |
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} |
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#endif |
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/* Intel x86 */ |
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#define X86_PPRO_OPT |
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static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (*a) : "cc"); return retval;} |
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#ifdef X86_PPRO_OPT |
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static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint32 retval; __asm__ ("movzwl %w1,%k0\n\tshll $16,%k0\n\tbswapl %k0\n" : "=&r" (retval) : "m" (*a) : "cc"); return retval;} |
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#else |
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static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint32 retval; __asm__ ("xorl %k0,%k0\n\tmovw %w1,%w0\n\trolw $8,%w0" : "=&r" (retval) : "m" (*a) : "cc"); return retval;} |
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#endif |
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#define HAVE_GET_WORD_UNSWAPPED |
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#define do_get_mem_word_unswapped(a) ((uae_u32)*((uae_u16 *)(a))) |
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static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); *a = v;} |
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#ifdef X86_PPRO_OPT |
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static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); *a = v;} |
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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_g(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_g(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_g(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;} |
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#endif |
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#ifndef HAVE_OPTIMIZED_BYTESWAP_32 |
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static inline uae_u32 do_byteswap_32_g(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_g(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_byteswap_16_c(x) \ |
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((((x) >> 8) & 0xff) | (((x) & 0xff) << 8)) |
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#define do_byteswap_32_c(x) \ |
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((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \ |
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(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24)) |
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#if defined(__GNUC__) |
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#define do_byteswap_16(x) \ |
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(__extension__ \ |
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({ register uint16 __v, __x = (x); \ |
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if (__builtin_constant_p(__x)) \ |
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__v = do_byteswap_16_c(__x); \ |
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else \ |
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__v = do_byteswap_16_g(__x); \ |
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__v; })) |
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#define do_byteswap_32(x) \ |
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(__extension__ \ |
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({ register uint32 __v, __x = (x); \ |
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if (__builtin_constant_p(__x)) \ |
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__v = do_byteswap_32_c(__x); \ |
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else \ |
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__v = do_byteswap_32_g(__x); \ |
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__v; })) |
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#else |
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#define do_byteswap_16(x) do_byteswap_16_g(x) |
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#define do_byteswap_32(x) do_byteswap_32_g(x) |
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#endif |
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/* Byte-swapping routines */ |
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#if defined(__i386__) || defined(__x86_64__) |
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#define ntohl(x) do_byteswap_32(x) |
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#define ntohs(x) do_byteswap_16(x) |
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#define htonl(x) do_byteswap_32(x) |
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#define htons(x) do_byteswap_16(x) |
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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_get_func(func, addr) ((*func)(addr)) |
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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 NO_INLINE_MEMORY_ACCESS |
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#undef MD_HAVE_MEM_1_FUNCS |
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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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#define ATTRIBUTE_PACKED __attribute__((packed)) |
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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) |
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#endif |
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#ifndef REGPARAM |
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# define REGPARAM |
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#endif |
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#define REGPARAM2 |
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#endif |
