| 1 |
/* |
| 2 |
* sysdeps.h - System dependent definitions for Unix |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-2000 Christian Bauer |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#ifndef SYSDEPS_H |
| 22 |
#define SYSDEPS_H |
| 23 |
|
| 24 |
#ifndef __STDC__ |
| 25 |
#error "Your compiler is not ANSI. Get a real one." |
| 26 |
#endif |
| 27 |
|
| 28 |
#include "config.h" |
| 29 |
#include "user_strings_unix.h" |
| 30 |
|
| 31 |
#ifndef STDC_HEADERS |
| 32 |
#error "You don't have ANSI C header files." |
| 33 |
#endif |
| 34 |
|
| 35 |
#ifdef HAVE_UNISTD_H |
| 36 |
# include <sys/types.h> |
| 37 |
# include <unistd.h> |
| 38 |
#endif |
| 39 |
|
| 40 |
#include <netinet/in.h> |
| 41 |
#include <assert.h> |
| 42 |
#include <stdio.h> |
| 43 |
#include <stdlib.h> |
| 44 |
#include <string.h> |
| 45 |
|
| 46 |
#ifdef HAVE_FCNTL_H |
| 47 |
# include <fcntl.h> |
| 48 |
#endif |
| 49 |
|
| 50 |
#ifdef TIME_WITH_SYS_TIME |
| 51 |
# include <sys/time.h> |
| 52 |
# include <time.h> |
| 53 |
#else |
| 54 |
# ifdef HAVE_SYS_TIME_H |
| 55 |
# include <sys/time.h> |
| 56 |
# else |
| 57 |
# include <time.h> |
| 58 |
# endif |
| 59 |
#endif |
| 60 |
|
| 61 |
|
| 62 |
#ifdef ENABLE_NATIVE_M68K |
| 63 |
|
| 64 |
/* Mac and host address space are the same */ |
| 65 |
#define REAL_ADDRESSING 1 |
| 66 |
|
| 67 |
/* Using 68k natively */ |
| 68 |
#define EMULATED_68K 0 |
| 69 |
|
| 70 |
/* Mac ROM is not write protected */ |
| 71 |
#define ROM_IS_WRITE_PROTECTED 0 |
| 72 |
#define USE_SCRATCHMEM_SUBTERFUGE 1 |
| 73 |
|
| 74 |
#else |
| 75 |
|
| 76 |
/* Mac and host address space are distinct */ |
| 77 |
#ifndef REAL_ADDRESSING |
| 78 |
#define REAL_ADDRESSING 0 |
| 79 |
#endif |
| 80 |
|
| 81 |
/* Using 68k emulator */ |
| 82 |
#define EMULATED_68K 1 |
| 83 |
|
| 84 |
/* The m68k emulator uses a prefetch buffer ? */ |
| 85 |
#define USE_PREFETCH_BUFFER 0 |
| 86 |
|
| 87 |
/* Mac ROM is write protected when banked memory is used */ |
| 88 |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 89 |
# define ROM_IS_WRITE_PROTECTED 0 |
| 90 |
# define USE_SCRATCHMEM_SUBTERFUGE 1 |
| 91 |
#else |
| 92 |
# define ROM_IS_WRITE_PROTECTED 1 |
| 93 |
#endif |
| 94 |
|
| 95 |
#endif |
| 96 |
|
| 97 |
/* Direct Addressing requires Video on SEGV signals */ |
| 98 |
#if DIRECT_ADDRESSING && !ENABLE_VOSF |
| 99 |
# undef ENABLE_VOSF |
| 100 |
# define ENABLE_VOSF 1 |
| 101 |
#endif |
| 102 |
|
| 103 |
/* ExtFS is supported */ |
| 104 |
#define SUPPORTS_EXTFS 1 |
| 105 |
|
| 106 |
|
| 107 |
/* Data types */ |
| 108 |
typedef unsigned char uint8; |
| 109 |
typedef signed char int8; |
| 110 |
#if SIZEOF_SHORT == 2 |
| 111 |
typedef unsigned short uint16; |
| 112 |
typedef short int16; |
| 113 |
#elif SIZEOF_INT == 2 |
| 114 |
typedef unsigned int uint16; |
| 115 |
typedef int int16; |
| 116 |
#else |
| 117 |
#error "No 2 byte type, you lose." |
| 118 |
#endif |
| 119 |
#if SIZEOF_INT == 4 |
| 120 |
typedef unsigned int uint32; |
| 121 |
typedef int int32; |
| 122 |
#elif SIZEOF_LONG == 4 |
| 123 |
typedef unsigned long uint32; |
| 124 |
typedef long int32; |
| 125 |
#else |
| 126 |
#error "No 4 byte type, you lose." |
| 127 |
#endif |
| 128 |
#if SIZEOF_LONG == 8 |
| 129 |
typedef unsigned long uint64; |
| 130 |
typedef long int64; |
| 131 |
#define VAL64(a) (a ## l) |
| 132 |
#define UVAL64(a) (a ## ul) |
| 133 |
#elif SIZEOF_LONG_LONG == 8 |
| 134 |
typedef unsigned long long uint64; |
| 135 |
typedef long long int64; |
| 136 |
#define VAL64(a) (a ## LL) |
| 137 |
#define UVAL64(a) (a ## uLL) |
| 138 |
#else |
| 139 |
#error "No 8 byte type, you lose." |
| 140 |
#endif |
| 141 |
#if SIZEOF_VOID_P == 4 |
| 142 |
typedef uint32 uintptr; |
| 143 |
typedef int32 intptr; |
| 144 |
#elif SIZEOF_VOID_P == 8 |
| 145 |
typedef uint64 uintptr; |
| 146 |
typedef int64 intptr; |
| 147 |
#else |
| 148 |
#error "Unsupported size of pointer" |
| 149 |
#endif |
| 150 |
|
| 151 |
/* Time data type for Time Manager emulation */ |
| 152 |
#ifdef HAVE_CLOCK_GETTIME |
| 153 |
typedef struct timespec tm_time_t; |
| 154 |
#else |
| 155 |
typedef struct timeval tm_time_t; |
| 156 |
#endif |
| 157 |
|
| 158 |
/* Offset Mac->Unix time in seconds */ |
| 159 |
#define TIME_OFFSET 0x7c25b080 |
| 160 |
|
| 161 |
/* UAE CPU data types */ |
| 162 |
#define uae_s8 int8 |
| 163 |
#define uae_u8 uint8 |
| 164 |
#define uae_s16 int16 |
| 165 |
#define uae_u16 uint16 |
| 166 |
#define uae_s32 int32 |
| 167 |
#define uae_u32 uint32 |
| 168 |
#define uae_s64 int64 |
| 169 |
#define uae_u64 uint64 |
| 170 |
typedef uae_u32 uaecptr; |
| 171 |
|
| 172 |
/* Alignment restrictions */ |
| 173 |
#if defined(__i386__) || defined(__powerpc__) || defined(__m68k__) |
| 174 |
# define CPU_CAN_ACCESS_UNALIGNED |
| 175 |
#endif |
| 176 |
|
| 177 |
/* Timing functions */ |
| 178 |
extern uint64 GetTicks_usec(void); |
| 179 |
extern void Delay_usec(uint32 usec); |
| 180 |
|
| 181 |
/* UAE CPU defines */ |
| 182 |
#ifdef WORDS_BIGENDIAN |
| 183 |
|
| 184 |
#ifdef CPU_CAN_ACCESS_UNALIGNED |
| 185 |
|
| 186 |
/* Big-endian CPUs which can do unaligned accesses */ |
| 187 |
static inline uae_u32 do_get_mem_long(uae_u32 *a) {return *a;} |
| 188 |
static inline uae_u32 do_get_mem_word(uae_u16 *a) {return *a;} |
| 189 |
static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = v;} |
| 190 |
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = v;} |
| 191 |
|
| 192 |
#else /* CPU_CAN_ACCESS_UNALIGNED */ |
| 193 |
|
| 194 |
#ifdef sgi |
| 195 |
/* The SGI MIPSPro compilers can do unaligned accesses given enough hints. |
| 196 |
* They will automatically inline these routines. */ |
| 197 |
#ifdef __cplusplus |
| 198 |
extern "C" { /* only the C compiler does unaligned accesses */ |
| 199 |
#endif |
| 200 |
extern uae_u32 do_get_mem_long(uae_u32 *a); |
| 201 |
extern uae_u32 do_get_mem_word(uae_u16 *a); |
| 202 |
extern void do_put_mem_long(uae_u32 *a, uae_u32 v); |
| 203 |
extern void do_put_mem_word(uae_u16 *a, uae_u32 v); |
| 204 |
#ifdef __cplusplus |
| 205 |
} |
| 206 |
#endif |
| 207 |
|
| 208 |
#else /* sgi */ |
| 209 |
|
| 210 |
/* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */ |
| 211 |
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];} |
| 212 |
static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];} |
| 213 |
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;} |
| 214 |
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;} |
| 215 |
#endif /* sgi */ |
| 216 |
|
| 217 |
#endif /* CPU_CAN_ACCESS_UNALIGNED */ |
| 218 |
|
| 219 |
#else /* WORDS_BIGENDIAN */ |
| 220 |
|
| 221 |
#ifdef __i386__ |
| 222 |
|
| 223 |
/* Intel x86 */ |
| 224 |
#define X86_PPRO_OPT |
| 225 |
static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (*a) : "cc"); return retval;} |
| 226 |
#ifdef X86_PPRO_OPT |
| 227 |
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;} |
| 228 |
#else |
| 229 |
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;} |
| 230 |
#endif |
| 231 |
#define HAVE_GET_WORD_UNSWAPPED |
| 232 |
#define do_get_mem_word_unswapped(a) ((uae_u32)*((uae_u16 *)(a))) |
| 233 |
static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); *a = v;} |
| 234 |
#ifdef X86_PPRO_OPT |
| 235 |
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); *a = v;} |
| 236 |
#else |
| 237 |
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); *a = v;} |
| 238 |
#endif |
| 239 |
#define HAVE_OPTIMIZED_BYTESWAP_32 |
| 240 |
/* bswap doesn't affect condition codes */ |
| 241 |
static inline uae_u32 do_byteswap_32(uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v)); return v;} |
| 242 |
#define HAVE_OPTIMIZED_BYTESWAP_16 |
| 243 |
#ifdef X86_PPRO_OPT |
| 244 |
static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); return v;} |
| 245 |
#else |
| 246 |
static inline uae_u32 do_byteswap_16(uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); return v;} |
| 247 |
#endif |
| 248 |
|
| 249 |
#elif defined(CPU_CAN_ACCESS_UNALIGNED) |
| 250 |
|
| 251 |
/* Other little-endian CPUs which can do unaligned accesses */ |
| 252 |
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);} |
| 253 |
static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint16 x = *a; return (x >> 8) | (x << 8);} |
| 254 |
static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = (v >> 24) | (v >> 8) & 0xff00 | (v << 8) & 0xff0000 | (v << 24);} |
| 255 |
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = (v >> 8) | (v << 8);} |
| 256 |
|
| 257 |
#else /* CPU_CAN_ACCESS_UNALIGNED */ |
| 258 |
|
| 259 |
/* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */ |
| 260 |
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];} |
| 261 |
static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];} |
| 262 |
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;} |
| 263 |
static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;} |
| 264 |
|
| 265 |
#endif /* CPU_CAN_ACCESS_UNALIGNED */ |
| 266 |
|
| 267 |
#endif /* WORDS_BIGENDIAN */ |
| 268 |
|
| 269 |
#ifndef HAVE_OPTIMIZED_BYTESWAP_32 |
| 270 |
static inline uae_u32 do_byteswap_32(uae_u32 v) |
| 271 |
{ return (((v >> 24) & 0xff) | ((v >> 8) & 0xff00) | ((v & 0xff) << 24) | ((v & 0xff00) << 8)); } |
| 272 |
#endif |
| 273 |
|
| 274 |
#ifndef HAVE_OPTIMIZED_BYTESWAP_16 |
| 275 |
static inline uae_u32 do_byteswap_16(uae_u32 v) |
| 276 |
{ return (((v >> 8) & 0xff) | ((v & 0xff) << 8)); } |
| 277 |
#endif |
| 278 |
|
| 279 |
#define do_get_mem_byte(a) ((uae_u32)*((uae_u8 *)(a))) |
| 280 |
#define do_put_mem_byte(a, v) (*(uae_u8 *)(a) = (v)) |
| 281 |
|
| 282 |
#define call_mem_get_func(func, addr) ((*func)(addr)) |
| 283 |
#define call_mem_put_func(func, addr, v) ((*func)(addr, v)) |
| 284 |
#define __inline__ inline |
| 285 |
#define CPU_EMU_SIZE 0 |
| 286 |
#undef NO_INLINE_MEMORY_ACCESS |
| 287 |
#undef MD_HAVE_MEM_1_FUNCS |
| 288 |
#define ENUMDECL typedef enum |
| 289 |
#define ENUMNAME(name) name |
| 290 |
#define write_log printf |
| 291 |
#undef USE_MAPPED_MEMORY |
| 292 |
#undef CAN_MAP_MEMORY |
| 293 |
|
| 294 |
#ifdef X86_ASSEMBLY |
| 295 |
#define ASM_SYM_FOR_FUNC(a) __asm__(a) |
| 296 |
#else |
| 297 |
#define ASM_SYM_FOR_FUNC(a) |
| 298 |
#endif |
| 299 |
|
| 300 |
#ifndef REGPARAM |
| 301 |
# define REGPARAM |
| 302 |
#endif |
| 303 |
#define REGPARAM2 |
| 304 |
|
| 305 |
#endif |
