File:  [gforth] / gforth / vmgen-ex / mini.h
Revision 1.3: download - view: text, annotated - select for diffs
Sun Jun 2 15:46:17 2002 UTC (19 years, 7 months ago) by anton
Branches: MAIN
CVS tags: HEAD
vmgen-related changes:
in prims2x:
  Conversion macros for single items now take 2 arguments
  Converting from two items to a type has changed order
  argument printing for disassembler disabled (for now)
  disassembler now also uses VM_IS_INST
in Gforth and vmgen-ex: adapted to work with changed prims2x
new: vmgen-ex2: uses union for Cell instead of casting (lots of
   changes compared to vmgen-ex)

    1: /* support functions for vmgen example
    2: 
    3:   Copyright (C) 2001 Free Software Foundation, Inc.
    4: 
    5:   This file is part of Gforth.
    6: 
    7:   Gforth is free software; you can redistribute it and/or
    8:   modify it under the terms of the GNU General Public License
    9:   as published by the Free Software Foundation; either version 2
   10:   of the License, or (at your option) any later version.
   11: 
   12:   This program is distributed in the hope that it will be useful,
   13:   but WITHOUT ANY WARRANTY; without even the implied warranty of
   14:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15:   GNU General Public License for more details.
   16: 
   17:   You should have received a copy of the GNU General Public License
   18:   along with this program; if not, write to the Free Software
   19:   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: */
   21: 
   22: #include <stdio.h>
   23: 
   24: typedef void *Label;
   25: typedef void *Inst; /* for direct threading, the same as Label */
   26: typedef long Cell;
   27: 
   28: extern Inst *vm_prim;
   29: extern int locals;
   30: extern Cell peeptable;
   31: extern int vm_debug;
   32: extern FILE *yyin;
   33: extern int yylineno;
   34: extern char *program_name;
   35: extern FILE *vm_out;
   36: extern Inst *vmcodep;
   37: extern Inst *last_compiled;
   38: extern Inst *vmcode_end;
   39: 
   40: /* generic vmgen support functions (e.g., wrappers) */
   41: void gen_inst(Inst **vmcodepp, Inst i);
   42: void init_peeptable(void);
   43: void vm_disassemble(Inst *ip, Inst *endp, Inst prim[]);
   44: void vm_count_block(Inst *ip);
   45: struct block_count *block_insert(Inst *ip);
   46: void vm_print_profile(FILE *file);
   47: #define VM_IS_INST(inst, n) ((inst) == vm_prim[n])
   48: 
   49: /* mini type-specific support functions */
   50: void genarg_i(Inst **vmcodepp, Cell i);
   51: void printarg_i(Cell i);
   52: void genarg_target(Inst **vmcodepp, Inst *target);
   53: void printarg_target(Inst *target);
   54: void printarg_a(char *a);
   55: void printarg_Cell(Cell i);
   56: 
   57: /* engine functions (type not fixed) */
   58: Cell engine(Inst *ip0, Cell *sp, char *fp);
   59: Cell engine_debug(Inst *ip0, Cell *sp, char *fp);
   60: 
   61: /* other generic functions */
   62: int yyparse(void);
   63: 
   64: /* mini-specific functions */
   65: void insert_func(char *name, Inst *start, int locals, int nonparams);
   66: Inst *func_addr(char *name);
   67: Cell func_calladjust(char *name);
   68: void insert_local(char *name);
   69: Cell var_offset(char *name);
   70: void gen_main_end(void);
   71: 
   72: /* stack pointer change for a function with n nonparams */
   73: #define adjust(n)  ((n) * -sizeof(Cell))

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