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root/cebix/BasiliskII/src/Unix/sysdeps.h
Revision: 1.9
Committed: 1999-11-03T10:56:29Z (25 years ago) by cebix
Content type: text/plain
Branch: MAIN
CVS Tags: snapshot-22121999, release-0_8-1
Changes since 1.8: +10 -3 lines
Log Message:
- imported UAE CPU 0.8.10 changes
- new utility functions Mac_memset, Mac2Host_memcpy, Host2Mac_memcpu and
  Mac2Mac_memcpy
- extfs.cpp: fixed bug in fs_rename() and fs_cat_move() (auxiliary IOParam
  block was not in Mac address space)
- some provisions for using UAE CPU compiler (doesn't work yet)

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * sysdeps.h - System dependent definitions for Unix
3     *
4     * Basilisk II (C) 1997-1999 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 cebix 1.3 #include "user_strings_unix.h"
30 cebix 1.1
31     #ifndef STDC_HEADERS
32     #error "You don't have ANSI C header files."
33     #endif
34    
35 cebix 1.2 #ifdef HAVE_UNISTD_H
36     # include <sys/types.h>
37     # include <unistd.h>
38     #endif
39    
40 cebix 1.1 #include <netinet/in.h>
41     #include <assert.h>
42     #include <stdio.h>
43     #include <stdlib.h>
44     #include <string.h>
45     #include <pthread.h>
46    
47     #ifdef HAVE_FCNTL_H
48     # include <fcntl.h>
49     #endif
50    
51     #ifdef TIME_WITH_SYS_TIME
52     # include <sys/time.h>
53     # include <time.h>
54     #else
55     # ifdef HAVE_SYS_TIME_H
56     # include <sys/time.h>
57     # else
58     # include <time.h>
59     # endif
60     #endif
61    
62    
63     /* Are the Mac and the host address space the same? */
64     #define REAL_ADDRESSING 0
65    
66     /* Are we using a 68k emulator or the real thing? */
67     #define EMULATED_68K 1
68    
69     /* Is the Mac ROM write protected? */
70     #define ROM_IS_WRITE_PROTECTED 1
71    
72 cebix 1.6 /* ExtFS is supported */
73     #define SUPPORTS_EXTFS 1
74    
75 cebix 1.1 /* Data types */
76     typedef unsigned char uint8;
77     typedef signed char int8;
78     #if SIZEOF_SHORT == 2
79     typedef unsigned short uint16;
80     typedef short int16;
81     #elif SIZEOF_INT == 2
82     typedef unsigned int uint16;
83     typedef int int16;
84     #else
85     #error "No 2 byte type, you lose."
86     #endif
87     #if SIZEOF_INT == 4
88     typedef unsigned int uint32;
89     typedef int int32;
90     #elif SIZEOF_LONG == 4
91     typedef unsigned long uint32;
92     typedef long int32;
93     #else
94     #error "No 4 byte type, you lose."
95     #endif
96     #if SIZEOF_LONG == 8
97     typedef unsigned long uint64;
98     typedef long int64;
99 cebix 1.8 #define VAL64(a) (a ## l)
100     #define UVAL64(a) (a ## ul)
101 cebix 1.1 #elif SIZEOF_LONG_LONG == 8
102     typedef unsigned long long uint64;
103     typedef long long int64;
104 cebix 1.8 #define VAL64(a) (a ## LL)
105     #define UVAL64(a) (a ## uLL)
106 cebix 1.1 #else
107     #error "No 8 byte type, you lose."
108     #endif
109    
110     /* Time data type for Time Manager emulation */
111     #ifdef HAVE_CLOCK_GETTIME
112     typedef struct timespec tm_time_t;
113     #else
114     typedef struct timeval tm_time_t;
115     #endif
116    
117 cebix 1.5 /* Offset Mac->Unix time in seconds */
118     #define TIME_OFFSET 0x7c25b080
119    
120 cebix 1.1 /* UAE CPU data types */
121     #define uae_s8 int8
122     #define uae_u8 uint8
123     #define uae_s16 int16
124     #define uae_u16 uint16
125     #define uae_s32 int32
126     #define uae_u32 uint32
127 cebix 1.7 #define uae_s64 int64
128     #define uae_u64 uint64
129 cebix 1.1 typedef uae_u32 uaecptr;
130    
131     /* Alignment restrictions */
132 cebix 1.4 #if defined(__i386__) || defined(__powerpc__) || defined(__m68k__)
133 cebix 1.1 # define CPU_CAN_ACCESS_UNALIGNED
134     #endif
135    
136     /* UAE CPU defines */
137     #ifdef WORDS_BIGENDIAN
138    
139     #ifdef CPU_CAN_ACCESS_UNALIGNED
140    
141     /* Big-endian CPUs which can do unaligned accesses */
142     static inline uae_u32 do_get_mem_long(uae_u32 *a) {return *a;}
143     static inline uae_u32 do_get_mem_word(uae_u16 *a) {return *a;}
144     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = v;}
145     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = v;}
146    
147     #else /* CPU_CAN_ACCESS_UNALIGNED */
148    
149     #ifdef sgi
150     /* The SGI MIPSPro compilers can do unaligned accesses given enough hints.
151     * They will automatically inline these routines. */
152     #ifdef __cplusplus
153     extern "C" { /* only the C compiler does unaligned accesses */
154     #endif
155     extern uae_u32 do_get_mem_long(uae_u32 *a);
156     extern uae_u32 do_get_mem_word(uae_u16 *a);
157     extern void do_put_mem_long(uae_u32 *a, uae_u32 v);
158     extern void do_put_mem_word(uae_u16 *a, uae_u32 v);
159     #ifdef __cplusplus
160     }
161     #endif
162    
163     #else /* sgi */
164    
165     /* Big-endian CPUs which can not do unaligned accesses (this is not the most efficient way to do this...) */
166     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];}
167     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
168     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;}
169     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
170     #endif /* sgi */
171    
172     #endif /* CPU_CAN_ACCESS_UNALIGNED */
173    
174     #else /* WORDS_BIGENDIAN */
175    
176     #ifdef __i386__
177    
178     /* Intel x86 */
179     #define X86_PPRO_OPT
180     static inline uae_u32 do_get_mem_long(uae_u32 *a) {uint32 retval; __asm__ ("bswap %0" : "=r" (retval) : "0" (*a) : "cc"); return retval;}
181     #ifdef X86_PPRO_OPT
182     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;}
183     #else
184     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;}
185     #endif
186     #define HAVE_GET_WORD_UNSWAPPED
187     #define do_get_mem_word_unswapped(a) ((uae_u32)*((uae_u16 *)(a)))
188     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {__asm__ ("bswap %0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
189     #ifdef X86_PPRO_OPT
190     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("bswapl %0" : "=&r" (v) : "0" (v << 16) : "cc"); *a = v;}
191     #else
192     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {__asm__ ("rolw $8,%0" : "=r" (v) : "0" (v) : "cc"); *a = v;}
193     #endif
194    
195     #elif defined(CPU_CAN_ACCESS_UNALIGNED)
196    
197     /* Other little-endian CPUs which can do unaligned accesses */
198     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);}
199     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint16 x = *a; return (x >> 8) | (x << 8);}
200     static inline void do_put_mem_long(uae_u32 *a, uae_u32 v) {*a = (v >> 24) | (v >> 8) & 0xff00 | (v << 8) & 0xff0000 | (v << 24);}
201     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {*a = (v >> 8) | (v << 8);}
202    
203     #else /* CPU_CAN_ACCESS_UNALIGNED */
204    
205     /* Other little-endian CPUs which can not do unaligned accesses (this needs optimization) */
206     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];}
207     static inline uae_u32 do_get_mem_word(uae_u16 *a) {uint8 *b = (uint8 *)a; return (b[0] << 8) | b[1];}
208     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;}
209     static inline void do_put_mem_word(uae_u16 *a, uae_u32 v) {uint8 *b = (uint8 *)a; b[0] = v >> 8; b[1] = v;}
210    
211     #endif /* CPU_CAN_ACCESS_UNALIGNED */
212    
213     #endif /* WORDS_BIGENDIAN */
214    
215     #define do_get_mem_byte(a) ((uae_u32)*((uae_u8 *)(a)))
216     #define do_put_mem_byte(a, v) (*(uae_u8 *)(a) = (v))
217    
218     #define call_mem_get_func(func, addr) ((*func)(addr))
219     #define call_mem_put_func(func, addr, v) ((*func)(addr, v))
220     #define __inline__ inline
221     #define CPU_EMU_SIZE 0
222     #undef NO_INLINE_MEMORY_ACCESS
223     #undef MD_HAVE_MEM_1_FUNCS
224     #define ENUMDECL typedef enum
225     #define ENUMNAME(name) name
226     #define write_log printf
227 cebix 1.9
228     #ifdef USE_COMPILER
229     #define USE_MAPPED_MEMORY
230     #define CAN_MAP_MEMORY
231     #define NO_EXCEPTION_3
232     #define NO_PREFETCH_BUFFER
233     #else
234     #undef USE_MAPPED_MEMORY
235     #undef CAN_MAP_MEMORY
236     #endif
237 cebix 1.1
238     #ifdef X86_ASSEMBLY
239     #define ASM_SYM_FOR_FUNC(a) __asm__(a)
240     #else
241     #define ASM_SYM_FOR_FUNC(a)
242     #endif
243    
244     #ifndef REGPARAM
245     # define REGPARAM
246     #endif
247     #define REGPARAM2
248    
249     #endif