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gbeauche |
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/* |
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* UAE - The Un*x Amiga Emulator |
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* |
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* MC68000 emulation |
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* |
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* Copyright 1995 Bernd Schmidt |
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*/ |
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#ifndef SPCFLAGS_H |
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#define SPCFLAGS_H |
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typedef uae_u32 spcflags_t; |
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enum { |
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SPCFLAG_STOP = 0x01, |
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SPCFLAG_INT = 0x02, |
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SPCFLAG_BRK = 0x04, |
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SPCFLAG_TRACE = 0x08, |
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SPCFLAG_DOTRACE = 0x10, |
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SPCFLAG_DOINT = 0x20, |
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SPCFLAG_JIT_END_COMPILE = 0, |
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SPCFLAG_JIT_EXEC_RETURN = 0, |
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SPCFLAG_ALL = SPCFLAG_STOP |
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| SPCFLAG_INT |
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| SPCFLAG_BRK |
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| SPCFLAG_TRACE |
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| SPCFLAG_DOTRACE |
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| SPCFLAG_DOINT |
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| SPCFLAG_JIT_END_COMPILE |
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| SPCFLAG_JIT_EXEC_RETURN, |
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SPCFLAG_ALL_BUT_EXEC_RETURN = SPCFLAG_ALL & ~SPCFLAG_JIT_EXEC_RETURN |
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}; |
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#define SPCFLAGS_TEST(m) \ |
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((regs.spcflags & (m)) != 0) |
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/* Macro only used in m68k_reset() */ |
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#define SPCFLAGS_INIT(m) do { \ |
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regs.spcflags = (m); \ |
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} while (0) |
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#if !(ENABLE_EXCLUSIVE_SPCFLAGS) |
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#define SPCFLAGS_SET(m) do { \ |
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regs.spcflags |= (m); \ |
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} while (0) |
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#define SPCFLAGS_CLEAR(m) do { \ |
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regs.spcflags &= ~(m); \ |
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} while (0) |
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#elif defined(__i386__) && defined(X86_ASSEMBLY) |
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#define HAVE_HARDWARE_LOCKS |
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#define SPCFLAGS_SET(m) do { \ |
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__asm__ __volatile__("lock\n\torl %1,%0" : "=m" (regs.spcflags) : "i" ((m))); \ |
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} while (0) |
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#define SPCFLAGS_CLEAR(m) do { \ |
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__asm__ __volatile__("lock\n\tandl %1,%0" : "=m" (regs.spcflags) : "i" (~(m))); \ |
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} while (0) |
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#elif defined(HAVE_PTHREADS) |
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#undef HAVE_HARDWARE_LOCKS |
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#include <pthread.h> |
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extern pthread_mutex_t spcflags_lock; |
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#define SPCFLAGS_SET(m) do { \ |
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pthread_mutex_lock(&spcflags_lock); \ |
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regs.spcflags |= (m); \ |
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pthread_mutex_unlock(&spcflags_lock); \ |
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} while (0) |
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#define SPCFLAGS_CLEAR(m) do { \ |
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pthread_mutex_lock(&spcflags_lock); \ |
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regs.spcflags &= ~(m); \ |
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pthread_mutex_unlock(&spcflags_lock); \ |
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} while (0) |
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#else |
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#error "Can't handle spcflags atomically!" |
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#endif |
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#endif /* SPCFLAGS_H */ |
