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cebix |
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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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* |
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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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#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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#include <sys/types.h> |
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#include <netinet/in.h> |
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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 <pthread.h> |
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#ifdef HAVE_UNISTD_H |
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# include <unistd.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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#ifdef TIME_WITH_SYS_TIME |
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# include <sys/time.h> |
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# include <time.h> |
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#else |
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# ifdef HAVE_SYS_TIME_H |
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# include <sys/time.h> |
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# else |
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# include <time.h> |
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# endif |
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#endif |
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/* Are the Mac and the host address space the same? */ |
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#define REAL_ADDRESSING 0 |
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/* Are we using a 68k emulator or the real thing? */ |
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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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/* 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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#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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#else |
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#error "No 8 byte type, you lose." |
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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 timespec tm_time_t; |
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#else |
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typedef struct timeval tm_time_t; |
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#endif |
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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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typedef uae_u32 uaecptr; |
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/* Alignment restrictions */ |
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#if defined(__i386__) || defined(__powerpc__) |
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# define CPU_CAN_ACCESS_UNALIGNED |
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#endif |
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/* UAE CPU defines */ |
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#ifdef WORDS_BIGENDIAN |
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#ifdef CPU_CAN_ACCESS_UNALIGNED |
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/* Big-endian CPUs which can do unaligned accesses */ |
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static inline uae_u32 do_get_mem_long(uae_u32 *a) {return *a;} |
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static inline uae_u32 do_get_mem_word(uae_u16 *a) {return *a;} |
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static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = v;} |
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static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = v;} |
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#else /* CPU_CAN_ACCESS_UNALIGNED */ |
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#ifdef sgi |
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/* The SGI MIPSPro compilers can do unaligned accesses given enough hints. |
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* They will automatically inline these routines. */ |
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#ifdef __cplusplus |
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extern "C" { /* only the C compiler does unaligned accesses */ |
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#endif |
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extern uae_u32 do_get_mem_long(uae_u32 *a); |
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extern uae_u32 do_get_mem_word(uae_u16 *a); |
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extern void do_put_mem_long(uae_u32 *a, uae_u32 v); |
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extern void do_put_mem_word(uae_u16 *a, uae_u32 v); |
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#ifdef __cplusplus |
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} |
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#endif |
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#else /* sgi */ |
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/* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */ |
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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];} |
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static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];} |
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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;} |
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static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;} |
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#endif /* sgi */ |
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#endif /* CPU_CAN_ACCESS_UNALIGNED */ |
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#else /* WORDS_BIGENDIAN */ |
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#ifdef __i386__ |
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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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#elif defined(CPU_CAN_ACCESS_UNALIGNED) |
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/* Other little-endian CPUs which can do unaligned accesses */ |
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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);} |
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static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint16 x = *a; return (x >> 8) | (x << 8);} |
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static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = (v >> 24) | (v >> 8) & 0xff00 | (v << 8) & 0xff0000 | (v << 24);} |
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static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = (v >> 8) | (v << 8);} |
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#else /* CPU_CAN_ACCESS_UNALIGNED */ |
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/* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */ |
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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];} |
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static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];} |
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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;} |
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static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;} |
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#endif /* CPU_CAN_ACCESS_UNALIGNED */ |
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#endif /* WORDS_BIGENDIAN */ |
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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 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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#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 |
