#ifndef __ARCH_H__
#define __ARCH_H__

#include "os.h"
#include "signal.h"

extern char *arch_init(void);
extern void arch_skip_instruction(struct sigcontext *scp);
extern boolean arch_pseudo_atomic_atomic(struct sigcontext *scp);
extern void arch_set_pseudo_atomic_interrupted(struct sigcontext *scp);
extern os_vm_address_t arch_get_bad_addr(int signal, int code,
					 struct sigcontext *scp);
extern unsigned char *arch_internal_error_arguments(struct sigcontext *scp);
extern unsigned long arch_install_breakpoint(void *pc);
extern void arch_remove_breakpoint(void *pc, unsigned long orig_inst);
extern void arch_install_interrupt_handlers(void);
extern void arch_do_displaced_inst(struct sigcontext *scp,
				   unsigned long orig_inst);
extern lispobj funcall0(lispobj function);
extern lispobj funcall1(lispobj function, lispobj arg0);
extern lispobj funcall2(lispobj function, lispobj arg0, lispobj arg1);
extern lispobj funcall3(lispobj function, lispobj arg0, lispobj arg1,
			lispobj arg2);

#endif /* __ARCH_H__ */