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132 lines
4 KiB
C
132 lines
4 KiB
C
/* Copyright (C) 2000 Free Software Foundation, Inc.
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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, or (at your option)
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* 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 software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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/* This file is included in vm.c two times! */
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#include "vm_engine.h"
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/* VM names */
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#undef VM_NAME
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#undef VM_TABLE
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#if VM_ENGINE == SCM_VM_REGULAR_ENGINE
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#define VM_NAME scm_regular_vm
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#define VM_TABLE scm_regular_instruction_table
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#else
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#if VM_ENGINE == SCM_VM_DEBUG_ENGINE
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#define VM_NAME scm_debug_vm
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#define VM_TABLE scm_debug_instruction_table
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#endif
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#endif
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static SCM
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VM_NAME (SCM vm, SCM program)
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#define FUNC_NAME "vm-engine"
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{
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/* Copies of VM registers */
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SCM ac = SCM_PACK (0); /* accumulator */
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SCM *pc = NULL; /* program counter */
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SCM *sp = NULL; /* stack pointer */
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SCM *fp = NULL; /* frame pointer */
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/* Cache variables */
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struct scm_vm *vmp = NULL; /* the VM data pointer */
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SCM ext = SCM_BOOL_F; /* the current external frame */
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SCM *stack_base = NULL; /* stack base address */
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SCM *stack_limit = NULL; /* stack limit address */
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/* Function arguments */
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int an = 0;
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SCM a2 = SCM_PACK (0);
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SCM a3 = SCM_PACK (0);
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/* Internal variables */
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SCM dynwinds = SCM_EOL;
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#if VM_USE_HOOK
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SCM hook_args = SCM_LIST1 (vm);
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#endif
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/* Initialize the instruction table at the first time.
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* This code must be here because the following table contains
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* pointers to the labels defined in this function. */
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if (!VM_TABLE)
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{
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static struct scm_instruction table[] = {
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#include "vm_system.vi"
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#include "vm_scheme.vi"
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#include "vm_number.vi"
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{ op_last }
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};
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VM_TABLE = table;
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return SCM_UNSPECIFIED;
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}
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SCM_VALIDATE_VM (1, vm);
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SCM_VALIDATE_PROGRAM (2, program);
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/* Initialize the VM */
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vmp = SCM_VM_DATA (vm);
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vmp->pc = SCM_PROGRAM_BASE (program);
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vmp->sp = vmp->stack_limit;
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LOAD ();
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/* top frame */
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VM_NEW_FRAME (fp, program, SCM_BOOL_F,
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SCM_VM_MAKE_ADDRESS (0),
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SCM_VM_MAKE_ADDRESS (0));
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/* Let's go! */
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VM_BOOT_HOOK ();
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#ifndef HAVE_LABELS_AS_VALUES
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vm_start: switch (*pc++) {
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#endif
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#include "vm_system.c"
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#include "vm_scheme.c"
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#include "vm_number.c"
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#ifndef HAVE_LABELS_AS_VALUES
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}
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#endif
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abort (); /* never reached */
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}
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#undef FUNC_NAME
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