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Annotation of gforth/vmgen-ex/mini.h, revision 1.1

1.1     ! anton       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: 
        !            39: /* generic vmgen support functions (e.g., wrappers) */
        !            40: void gen_inst(Inst **vmcodepp, Inst i);
        !            41: void init_peeptable(void);
        !            42: void vm_disassemble(Inst *ip, Inst *endp, Inst prim[]);
        !            43: void vm_count_block(Inst *ip);
        !            44: struct block_count *block_insert(Inst *ip);
        !            45: 
        !            46: /* mini type-specific support functions */
        !            47: void genarg_i(Inst **vmcodepp, Cell i);
        !            48: void printarg_i(Cell i);
        !            49: void genarg_target(Inst **vmcodepp, Inst *target);
        !            50: void printarg_target(Inst *target);
        !            51: void printarg_a(char *a);
        !            52: 
        !            53: /* engine functions (type not fixed) */
        !            54: Cell engine(Inst *ip0, Cell *sp, char *fp);
        !            55: Cell engine_debug(Inst *ip0, Cell *sp, char *fp);
        !            56: 
        !            57: 
        !            58: /* other generic functions */
        !            59: int yyparse(void);
        !            60: 
        !            61: /* mini-specific functions */
        !            62: void insert_func(char *name, Inst *start, int locals, int nonparams);
        !            63: Inst *func_addr(char *name);
        !            64: Cell func_calladjust(char *name);
        !            65: void insert_local(char *name);
        !            66: Cell var_offset(char *name);
        !            67: void gen_main_end(void);
        !            68: 
        !            69: /* stack pointer change for a function with n nonparams */
        !            70: #define adjust(n)  ((n) * -sizeof(Cell))