/* -*-C-*-
$Id: extern.h,v 9.60 2001/07/31 03:11:21 cph Exp $
Copyright (c) 1987-2001 Massachusetts Institute of Technology
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.
*/
/* External Declarations */
#ifndef SCM_EXTERN_H
#define SCM_EXTERN_H
#ifdef ENABLE_DEBUGGING_TOOLS
extern Boolean Eval_Debug;
extern Boolean Hex_Input_Debug;
extern Boolean Cont_Debug;
extern Boolean File_Load_Debug;
extern Boolean Reloc_Debug;
extern Boolean Intern_Debug;
extern Boolean Primitive_Debug;
extern Boolean Define_Debug;
extern Boolean Lookup_Debug;
extern Boolean GC_Debug;
extern Boolean Upgrade_Debug;
extern Boolean Trace_On_Error;
extern Boolean Dump_Debug;
extern Boolean Per_File;
extern Boolean Bignum_Debug;
extern Boolean Fluids_Debug;
extern sp_record_list SP_List;
extern void EXFUN (Pop_Return_Break_Point, (void));
extern int debug_slotno;
extern int debug_nslots;
extern int local_slotno;
extern int local_nslots;
extern int debug_circle [];
extern int local_circle [];
#else /* not ENABLE_DEBUGGING_TOOLS */
#define Eval_Debug false
#define Hex_Input_Debug false
#define File_Load_Debug false
#define Reloc_Debug false
#define Intern_Debug false
#define Cont_Debug false
#define Primitive_Debug false
#define Lookup_Debug false
#define Define_Debug false
#define GC_Debug false
#define Upgrade_Debug false
#define Trace_On_Error false
#define Dump_Debug false
#define Per_File false
#define Bignum_Debug false
#define Fluids_Debug false
#endif /* ENABLE_DEBUGGING_TOOLS */
/* The register block */
#ifdef __WIN32__
extern SCHEME_OBJECT *RegistersPtr;
#define Registers RegistersPtr
#else
extern SCHEME_OBJECT Registers [];
#endif
extern SCHEME_OBJECT
* MemTop, /* Top of free space available */
* Free, /* Next free word in heap */
* Heap_Top, /* Top of current heap */
* Heap_Bottom, /* Bottom of current heap */
* Unused_Heap_Top, /* Top of unused heap */
* Unused_Heap_Bottom, /* Bottom of unused heap */
* Stack_Guard, /* Guard area at end of stack */
* Ext_Stack_Pointer, /* Next available slot in control stack */
* Stack_Bottom, /* Bottom of control stack */
* Stack_Top, /* Top of control stack */
* Free_Constant, /* Next free word in constant space */
* Constant_Space, /* Bottom of constant+pure space */
* Constant_Top, /* Top of constant+pure space */
* Local_Heap_Base, /* Per-processor CONSing area */
* Free_Stacklets, /* Free list of stacklets */
* Ext_History, /* History register */
Current_State_Point, /* Dynamic state point */
Fluid_Bindings; /* Fluid bindings AList */
/* Address of the most recent return code in the stack. This is
only meaningful while in compiled code. *** This must be changed
when stacklets are used. *** */
extern SCHEME_OBJECT * last_return_code;
/* Return code/address used by the compiled code interface to make
compiled code return to the interpreter. */
extern SCHEME_OBJECT return_to_interpreter;
extern Declare_Fixed_Objects ();
extern long
temp_long, /* temporary for sign extension */
GC_Reserve, /* Scheme pointer overflow space in heap */
GC_Space_Needed; /* Amount of space needed when GC triggered */
extern char * Return_Names [];
extern long MAX_RETURN;
extern char
* CONT_PRINT_RETURN_MESSAGE,
* CONT_PRINT_EXPR_MESSAGE,
* RESTORE_CONT_RETURN_MESSAGE,
* RESTORE_CONT_EXPR_MESSAGE;
extern int GC_Type_Map [];
extern Boolean Trapping;
extern SCHEME_OBJECT Old_Return_Code;
extern SCHEME_OBJECT * Return_Hook_Address;
extern SCHEME_OBJECT * Prev_Restore_History_Stacklet;
extern long Prev_Restore_History_Offset;
extern CONST char * scheme_program_name;
extern CONST char * OS_Name;
extern CONST char * OS_Variant;
extern struct obstack scratch_obstack;
extern long Heap_Size;
extern long Constant_Size;
extern long Stack_Size;
extern SCHEME_OBJECT * Lowest_Allocated_Address, * Highest_Allocated_Address;
/* Arithmetic utilities */
extern long EXFUN (fixnum_to_long, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (double_to_fixnum, (double));
extern SCHEME_OBJECT EXFUN (double_to_flonum, (double));
extern Boolean EXFUN (integer_to_long_p, (SCHEME_OBJECT));
extern long EXFUN (integer_to_long, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (long_to_integer, (long));
extern Boolean EXFUN (integer_to_ulong_p, (SCHEME_OBJECT));
extern unsigned long EXFUN (integer_to_ulong, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (ulong_to_integer, (unsigned long));
extern Boolean EXFUN (integer_to_double_p, (SCHEME_OBJECT));
extern double EXFUN (integer_to_double, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (double_to_integer, (double));
extern double EXFUN (double_truncate, (double));
extern Boolean EXFUN (real_number_to_double_p, (SCHEME_OBJECT));
extern double EXFUN (real_number_to_double, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (bignum_to_fixnum, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (bignum_to_integer, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (bignum_to_flonum, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (flonum_floor, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (flonum_ceiling, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (flonum_round, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (flonum_normalize, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (flonum_denormalize,
(SCHEME_OBJECT, SCHEME_OBJECT));
extern Boolean EXFUN (integer_zero_p, (SCHEME_OBJECT));
extern Boolean EXFUN (integer_negative_p, (SCHEME_OBJECT));
extern Boolean EXFUN (integer_positive_p, (SCHEME_OBJECT));
extern Boolean EXFUN (integer_equal_p, (SCHEME_OBJECT, SCHEME_OBJECT));
extern Boolean EXFUN (integer_less_p, (SCHEME_OBJECT, SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (integer_negate, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (integer_add, (SCHEME_OBJECT, SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (integer_add_1, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (integer_subtract, (SCHEME_OBJECT, SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (integer_subtract_1, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (integer_multiply, (SCHEME_OBJECT, SCHEME_OBJECT));
extern Boolean EXFUN (integer_divide,
(SCHEME_OBJECT, SCHEME_OBJECT,
SCHEME_OBJECT *, SCHEME_OBJECT *));
extern SCHEME_OBJECT EXFUN (integer_quotient, (SCHEME_OBJECT, SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (integer_remainder, (SCHEME_OBJECT, SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (integer_length_in_bits, (SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN
(integer_shift_left, (SCHEME_OBJECT, SCHEME_OBJECT));
/* Character utilities */
extern long EXFUN (char_downcase, (long));
extern long EXFUN (char_upcase, (long));
/* Allocation utilities */
extern SCHEME_OBJECT EXFUN (cons, (SCHEME_OBJECT, SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (system_pair_cons,
(long, SCHEME_OBJECT, SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (hunk3_cons,
(SCHEME_OBJECT, SCHEME_OBJECT, SCHEME_OBJECT));
extern SCHEME_OBJECT EXFUN (allocate_non_marked_vector, (int, long, Boolean));
extern SCHEME_OBJECT EXFUN (allocate_marked_vector, (int, long, Boolean));
extern SCHEME_OBJECT EXFUN (make_vector, (long, SCHEME_OBJECT, Boolean));
extern SCHEME_OBJECT EXFUN (allocate_string, (unsigned long));
extern SCHEME_OBJECT EXFUN (allocate_string_no_gc, (unsigned long));
extern SCHEME_OBJECT EXFUN
(memory_to_string, (unsigned long, CONST unsigned char *));
extern SCHEME_OBJECT EXFUN
(memory_to_string_no_gc, (unsigned long, CONST unsigned char *));
extern SCHEME_OBJECT EXFUN (char_pointer_to_string, (CONST unsigned char *));
extern SCHEME_OBJECT EXFUN
(char_pointer_to_string_no_gc, (CONST unsigned char *));
/* Random and OS utilities */
extern Boolean EXFUN (Restore_History, (SCHEME_OBJECT));
extern Boolean EXFUN (interpreter_applicable_p, (SCHEME_OBJECT));
extern void EXFUN
(add_reload_cleanup, (void EXFUN ((*cleanup_procedure), (void))));
/* Memory management utilities */
extern Boolean EXFUN (Pure_Test, (SCHEME_OBJECT *));
/* Interpreter utilities */
extern void EXFUN (Microcode_Termination, (int code));
extern void EXFUN (termination_normal, (CONST int));
extern void EXFUN (termination_init_error, (void));
extern void EXFUN (termination_end_of_computation, (void));
extern void EXFUN (termination_trap, (void));
extern void EXFUN (termination_no_error_handler, (void));
extern void EXFUN (termination_gc_out_of_space, (void));
extern void EXFUN (termination_eof, (void));
extern void EXFUN (termination_signal, (CONST char * signal_name));
extern void EXFUN (Setup_Interrupt, (long Masked_Interrupts));
extern void EXFUN (preserve_interrupt_mask, (void));
extern void EXFUN (back_out_of_primitive, (void));
extern void EXFUN (Interpret, (Boolean));
extern void EXFUN (Do_Micro_Error, (long, Boolean));
extern void EXFUN (Translate_To_Point, (SCHEME_OBJECT));
extern void EXFUN (Stop_History, (void));
extern void EXFUN (Stack_Death, (void));
extern SCHEME_OBJECT * EXFUN (Make_Dummy_History, (void));
extern SCHEME_OBJECT EXFUN (Find_State_Space, (SCHEME_OBJECT));
/* Debugging utilities */
extern void EXFUN (debug_edit_flags, (void));
extern void EXFUN (Back_Trace, (outf_channel));
extern void EXFUN (Debug_Stack_Trace, (void));
extern void EXFUN (Debug_Print, (SCHEME_OBJECT, Boolean));
extern void EXFUN (Show_Env, (SCHEME_OBJECT));
extern void EXFUN (Show_Pure, (void));
extern void EXFUN (Print_Return, (char *));
extern void EXFUN (Print_Expression, (SCHEME_OBJECT, char *));
extern void EXFUN (Print_Primitive, (SCHEME_OBJECT));
/* Conditional utilities */
#ifdef USE_STACKLETS
extern void EXFUN (Allocate_New_Stacklet, (long));
#endif
#if FALSE
extern void EXFUN (Clear_Perfinfo_Data, (void));
#endif
#endif /* not SCM_EXTERN_H */
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