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- /*
- * sysdeps.h - System dependent definitions for Unix
- *
- * Basilisk II (C) 1997-2001 Christian Bauer
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
- #ifndef SYSDEPS_H
- #define SYSDEPS_H
-
- #ifndef __STDC__
- #error "Your compiler is not ANSI. Get a real one."
- #endif
-
- #include "config.h"
- #include "user_strings_unix.h"
-
- #ifndef STDC_HEADERS
- #error "You don't have ANSI C header files."
- #endif
-
- #ifdef HAVE_UNISTD_H
- # include <sys/types.h>
- # include <unistd.h>
- #endif
-
- #include <netinet/in.h>
- #include <assert.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
-
- #ifdef HAVE_FCNTL_H
- # include <fcntl.h>
- #endif
-
- #ifdef TIME_WITH_SYS_TIME
- # include <sys/time.h>
- # include <time.h>
- #else
- # ifdef HAVE_SYS_TIME_H
- # include <sys/time.h>
- # else
- # include <time.h>
- # endif
- #endif
-
-
- #ifdef ENABLE_NATIVE_M68K
-
- /* Mac and host address space are the same */
- #define REAL_ADDRESSING 1
-
- /* Using 68k natively */
- #define EMULATED_68K 0
-
- /* Mac ROM is not write protected */
- #define ROM_IS_WRITE_PROTECTED 0
- #define USE_SCRATCHMEM_SUBTERFUGE 1
-
- #else
-
- /* Mac and host address space are distinct */
- #ifndef REAL_ADDRESSING
- #define REAL_ADDRESSING 0
- #endif
-
- /* Using 68k emulator */
- #define EMULATED_68K 1
-
- /* The m68k emulator uses a prefetch buffer ? */
- #define USE_PREFETCH_BUFFER 0
-
- /* Mac ROM is write protected when banked memory is used */
- #if REAL_ADDRESSING || DIRECT_ADDRESSING
- # define ROM_IS_WRITE_PROTECTED 0
- # define USE_SCRATCHMEM_SUBTERFUGE 1
- #else
- # define ROM_IS_WRITE_PROTECTED 1
- #endif
-
- #endif
-
- /* Direct Addressing requires Video on SEGV signals */
- #if DIRECT_ADDRESSING && !ENABLE_VOSF
- # undef ENABLE_VOSF
- # define ENABLE_VOSF 1
- #endif
-
- /* ExtFS is supported */
- #define SUPPORTS_EXTFS 1
-
-
- /* Data types */
- typedef unsigned char uint8;
- typedef signed char int8;
- #if SIZEOF_SHORT == 2
- typedef unsigned short uint16;
- typedef short int16;
- #elif SIZEOF_INT == 2
- typedef unsigned int uint16;
- typedef int int16;
- #else
- #error "No 2 byte type, you lose."
- #endif
- #if SIZEOF_INT == 4
- typedef unsigned int uint32;
- typedef int int32;
- #elif SIZEOF_LONG == 4
- typedef unsigned long uint32;
- typedef long int32;
- #else
- #error "No 4 byte type, you lose."
- #endif
- #if SIZEOF_LONG == 8
- typedef unsigned long uint64;
- typedef long int64;
- #define VAL64(a) (a ## l)
- #define UVAL64(a) (a ## ul)
- #elif SIZEOF_LONG_LONG == 8
- typedef unsigned long long uint64;
- typedef long long int64;
- #define VAL64(a) (a ## LL)
- #define UVAL64(a) (a ## uLL)
- #else
- #error "No 8 byte type, you lose."
- #endif
- #if SIZEOF_VOID_P == 4
- typedef uint32 uintptr;
- typedef int32 intptr;
- #elif SIZEOF_VOID_P == 8
- typedef uint64 uintptr;
- typedef int64 intptr;
- #else
- #error "Unsupported size of pointer"
- #endif
-
- /* Time data type for Time Manager emulation */
- #ifdef HAVE_CLOCK_GETTIME
- typedef struct timespec tm_time_t;
- #else
- typedef struct timeval tm_time_t;
- #endif
-
- /* Offset Mac->Unix time in seconds */
- #define TIME_OFFSET 0x7c25b080
-
- /* UAE CPU data types */
- #define uae_s8 int8
- #define uae_u8 uint8
- #define uae_s16 int16
- #define uae_u16 uint16
- #define uae_s32 int32
- #define uae_u32 uint32
- #define uae_s64 int64
- #define uae_u64 uint64
- typedef uae_u32 uaecptr;
-
- /* Alignment restrictions */
- #if defined(__i386__) || defined(__powerpc__) || defined(__m68k__)
- # define CPU_CAN_ACCESS_UNALIGNED
- #endif
-
- /* Timing functions */
- extern uint64 GetTicks_usec(void);
- extern void Delay_usec(uint32 usec);
-
- /* UAE CPU defines */
- #ifdef WORDS_BIGENDIAN
-
- #ifdef CPU_CAN_ACCESS_UNALIGNED
-
- /* Big-endian CPUs which can do unaligned accesses */
- static inline uae_u32 do_get_mem_long(uae_u32 *a) {return *a;}
- static inline uae_u32 do_get_mem_word(uae_u16 *a) {return *a;}
- static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = v;}
- static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = v;}
-
- #else /* CPU_CAN_ACCESS_UNALIGNED */
-
- #ifdef sgi
- /* The SGI MIPSPro compilers can do unaligned accesses given enough hints.
- * They will automatically inline these routines. */
- #ifdef __cplusplus
- extern "C" { /* only the C compiler does unaligned accesses */
- #endif
- extern uae_u32 do_get_mem_long(uae_u32 *a);
- extern uae_u32 do_get_mem_word(uae_u16 *a);
- extern void do_put_mem_long(uae_u32 *a, uae_u32 v);
- extern void do_put_mem_word(uae_u16 *a, uae_u32 v);
- #ifdef __cplusplus
- }
- #endif
-
- #else /* sgi */
-
- /* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */
- static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint8 *b = (uint8 *)a; return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];}
- static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
- static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 24; b[1] = v >> 16; b[2] = v >> 8; b[3] = v;}
- static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
- #endif /* sgi */
-
- #endif /* CPU_CAN_ACCESS_UNALIGNED */
-
- #else /* WORDS_BIGENDIAN */
-
- #ifdef __i386__
-
- /* Intel x86 */
- #define X86_PPRO_OPT
- static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (*a) : "cc"); return retval;}
- #ifdef X86_PPRO_OPT
- 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;}
- #else
- 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;}
- #endif
- #define HAVE_GET_WORD_UNSWAPPED
- #define do_get_mem_word_unswapped(a) ((uae_u32)*((uae_u16 *)(a)))
- static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
- #ifdef X86_PPRO_OPT
- static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); *a = v;}
- #else
- static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
- #endif
- #define HAVE_OPTIMIZED_BYTESWAP_32
- /* bswap doesn't affect condition codes */
- static inline uae_u32 do_byteswap_32(uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v)); return v;}
- #define HAVE_OPTIMIZED_BYTESWAP_16
- #ifdef X86_PPRO_OPT
- static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); return v;}
- #else
- static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;}
- #endif
-
- #elif defined(CPU_CAN_ACCESS_UNALIGNED)
-
- /* Other little-endian CPUs which can do unaligned accesses */
- static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 x = *a; return (x >> 24) | (x >> 8) & 0xff00 | (x << 8) & 0xff0000 | (x << 24);}
- static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint16 x = *a; return (x >> 8) | (x << 8);}
- static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = (v >> 24) | (v >> 8) & 0xff00 | (v << 8) & 0xff0000 | (v << 24);}
- static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = (v >> 8) | (v << 8);}
-
- #else /* CPU_CAN_ACCESS_UNALIGNED */
-
- /* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */
- static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint8 *b = (uint8 *)a; return (b[0] << 24) | (b[1] << 16) | (b[2] << 8) | b[3];}
- static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
- static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 24; b[1] = v >> 16; b[2] = v >> 8; b[3] = v;}
- static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
-
- #endif /* CPU_CAN_ACCESS_UNALIGNED */
-
- #endif /* WORDS_BIGENDIAN */
-
- #ifndef HAVE_OPTIMIZED_BYTESWAP_32
- static inline uae_u32 do_byteswap_32(uae_u32 v)
- { return (((v >> 24) & 0xff) | ((v >> 8) & 0xff00) | ((v & 0xff) << 24) | ((v & 0xff00) << 8)); }
- #endif
-
- #ifndef HAVE_OPTIMIZED_BYTESWAP_16
- static inline uae_u32 do_byteswap_16(uae_u32 v)
- { return (((v >> 8) & 0xff) | ((v & 0xff) << 8)); }
- #endif
-
- #define do_get_mem_byte(a) ((uae_u32)*((uae_u8 *)(a)))
- #define do_put_mem_byte(a, v) (*(uae_u8 *)(a) = (v))
-
- #define call_mem_get_func(func, addr) ((*func)(addr))
- #define call_mem_put_func(func, addr, v) ((*func)(addr, v))
- #define __inline__ inline
- #define CPU_EMU_SIZE 0
- #undef NO_INLINE_MEMORY_ACCESS
- #undef MD_HAVE_MEM_1_FUNCS
- #define ENUMDECL typedef enum
- #define ENUMNAME(name) name
- #define write_log printf
- #undef USE_MAPPED_MEMORY
- #undef CAN_MAP_MEMORY
-
- #ifdef X86_ASSEMBLY
- #define ASM_SYM_FOR_FUNC(a) __asm__(a)
- #else
- #define ASM_SYM_FOR_FUNC(a)
- #endif
-
- #ifndef REGPARAM
- # define REGPARAM
- #endif
- #define REGPARAM2
-
- #endif
-