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/* |
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* sysdeps.h - System dependent definitions for Linux |
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* |
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* SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig |
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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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|
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#ifndef SYSDEPS_H |
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#define SYSDEPS_H |
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|
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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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|
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#include "config.h" |
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#include "user_strings_unix.h" |
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|
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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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|
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#ifdef HAVE_UNISTD_H |
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# include <sys/types.h> |
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# include <unistd.h> |
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#endif |
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|
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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 <signal.h> |
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|
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#ifdef HAVE_FCNTL_H |
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# include <fcntl.h> |
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#endif |
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|
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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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|
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// Define for external components |
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#define SHEEPSHAVER 1 |
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|
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// Mac and host address space are the same |
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#define REAL_ADDRESSING 1 |
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|
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#define POWERPC_ROM 1 |
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|
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#if EMULATED_PPC |
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// Handle interrupts asynchronously? |
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#define ASYNC_IRQ 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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#else |
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// Mac ROM is write protected |
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#define ROM_IS_WRITE_PROTECTED 1 |
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#define USE_SCRATCHMEM_SUBTERFUGE 0 |
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#endif |
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|
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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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|
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// Helper functions to byteswap data |
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#ifdef HAVE_BYTESWAP_H |
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#include <byteswap.h> |
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#endif |
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|
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#ifndef bswap_16 |
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#define bswap_16 generic_bswap_16 |
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#endif |
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|
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static inline uint16 generic_bswap_16(uint16 x) |
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{ |
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return ((x & 0xff) << 8) | ((x >> 8) & 0xff); |
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} |
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|
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#ifndef bswap_32 |
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#define bswap_32 generic_bswap_32 |
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#endif |
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|
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static inline uint32 generic_bswap_32(uint32 x) |
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{ |
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return (((x & 0xff000000) >> 24) | |
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((x & 0x00ff0000) >> 8) | |
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((x & 0x0000ff00) << 8) | |
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((x & 0x000000ff) << 24) ); |
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} |
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|
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#ifndef bswap_64 |
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#define bswap_64 generic_bswap_64 |
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#endif |
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|
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static inline uint64 generic_bswap_64(uint64 x) |
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{ |
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return (((x & UVAL64(0xff00000000000000)) >> 56) | |
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((x & UVAL64(0x00ff000000000000)) >> 40) | |
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((x & UVAL64(0x0000ff0000000000)) >> 24) | |
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((x & UVAL64(0x000000ff00000000)) >> 8) | |
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((x & UVAL64(0x00000000ff000000)) << 8) | |
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((x & UVAL64(0x0000000000ff0000)) << 24) | |
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((x & UVAL64(0x000000000000ff00)) << 40) | |
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((x & UVAL64(0x00000000000000ff)) << 56) ); |
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} |
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|
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#ifdef WORDS_BIGENDIAN |
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static inline uint16 tswap16(uint16 x) { return x; } |
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static inline uint32 tswap32(uint32 x) { return x; } |
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static inline uint64 tswap64(uint64 x) { return x; } |
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#else |
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static inline uint16 tswap16(uint16 x) { return bswap_16(x); } |
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static inline uint32 tswap32(uint32 x) { return bswap_32(x); } |
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static inline uint64 tswap64(uint64 x) { return bswap_64(x); } |
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#endif |
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|
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// spin locks |
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#ifdef __GNUC__ |
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|
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#ifdef __powerpc__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(int *p) |
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{ |
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int ret; |
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__asm__ __volatile__("0: lwarx %0,0,%1 ;" |
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" xor. %0,%3,%0;" |
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" bne 1f;" |
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" stwcx. %2,0,%1;" |
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" bne- 0b;" |
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"1: " |
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: "=&r" (ret) |
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: "r" (p), "r" (1), "r" (0) |
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: "cr0", "memory"); |
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return ret; |
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} |
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#endif |
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|
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#ifdef __i386__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(int *p) |
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{ |
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char ret; |
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long int readval; |
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|
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__asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0" |
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: "=q" (ret), "=m" (*p), "=a" (readval) |
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: "r" (1), "m" (*p), "a" (0) |
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: "memory"); |
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return ret; |
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} |
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#endif |
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|
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#ifdef __s390__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(int *p) |
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{ |
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int ret; |
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|
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__asm__ __volatile__("0: cs %0,%1,0(%2)\n" |
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" jl 0b" |
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: "=&d" (ret) |
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: "r" (1), "a" (p), "0" (*p) |
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: "cc", "memory" ); |
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return ret; |
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} |
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#endif |
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|
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#ifdef __alpha__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(int *p) |
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{ |
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int ret; |
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unsigned long one; |
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|
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__asm__ __volatile__("0: mov 1,%2\n" |
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" ldl_l %0,%1\n" |
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" stl_c %2,%1\n" |
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" beq %2,1f\n" |
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".subsection 2\n" |
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"1: br 0b\n" |
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".previous" |
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: "=r" (ret), "=m" (*p), "=r" (one) |
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: "m" (*p)); |
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return ret; |
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} |
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#endif |
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|
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#ifdef __sparc__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(int *p) |
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{ |
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int ret; |
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|
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__asm__ __volatile__("ldstub [%1], %0" |
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: "=r" (ret) |
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: "r" (p) |
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: "memory"); |
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|
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return (ret ? 1 : 0); |
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} |
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#endif |
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|
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#ifdef __arm__ |
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#define HAVE_TEST_AND_SET 1 |
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static inline int testandset(int *p) |
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{ |
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register unsigned int ret; |
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__asm__ __volatile__("swp %0, %1, [%2]" |
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: "=r"(ret) |
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: "0"(1), "r"(p)); |
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|
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return ret; |
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} |
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#endif |
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|
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#endif /* __GNUC__ */ |
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|
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#if HAVE_TEST_AND_SET |
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#define HAVE_SPINLOCKS 1 |
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typedef int spinlock_t; |
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|
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const spinlock_t SPIN_LOCK_UNLOCKED = 0; |
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|
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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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|
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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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|
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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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#endif |
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|
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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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|
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// Setup pthread attributes |
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extern void Set_pthread_attr(pthread_attr_t *attr, int priority); |
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|
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// Various definitions |
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typedef struct rgb_color { |
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uint8 red; |
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uint8 green; |
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uint8 blue; |
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uint8 alpha; |
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} rgb_color; |
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|
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// Macro for calling MacOS routines |
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#define CallMacOS(type, tvect) call_macos((uint32)tvect) |
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#define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1) |
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#define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2) |
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#define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3) |
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#define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4) |
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#define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5) |
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#define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6) |
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#define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6, (uint32)arg7) |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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extern uint32 call_macos(uint32 tvect); |
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extern uint32 call_macos1(uint32 tvect, uint32 arg1); |
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extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2); |
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extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3); |
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extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4); |
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extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5); |
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extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6); |
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extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7); |
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#ifdef __cplusplus |
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} |
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#endif |
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|
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#endif |
