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| 1 : | anton | 1.1 | /* 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 : | anton | 1.2 | extern Inst *vmcode_end; |
| 39 : | anton | 1.1 | |
| 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 : | anton | 1.2 | void vm_print_profile(FILE *file); |
| 47 : | anton | 1.1 | |
| 48 : | /* mini type-specific support functions */ | ||
| 49 : | void genarg_i(Inst **vmcodepp, Cell i); | ||
| 50 : | void printarg_i(Cell i); | ||
| 51 : | void genarg_target(Inst **vmcodepp, Inst *target); | ||
| 52 : | void printarg_target(Inst *target); | ||
| 53 : | void printarg_a(char *a); | ||
| 54 : | anton | 1.2 | void printarg_Cell(Cell i); |
| 55 : | anton | 1.1 | |
| 56 : | /* engine functions (type not fixed) */ | ||
| 57 : | Cell engine(Inst *ip0, Cell *sp, char *fp); | ||
| 58 : | Cell engine_debug(Inst *ip0, Cell *sp, char *fp); | ||
| 59 : | |||
| 60 : | /* other generic functions */ | ||
| 61 : | int yyparse(void); | ||
| 62 : | |||
| 63 : | /* mini-specific functions */ | ||
| 64 : | void insert_func(char *name, Inst *start, int locals, int nonparams); | ||
| 65 : | Inst *func_addr(char *name); | ||
| 66 : | Cell func_calladjust(char *name); | ||
| 67 : | void insert_local(char *name); | ||
| 68 : | Cell var_offset(char *name); | ||
| 69 : | void gen_main_end(void); | ||
| 70 : | |||
| 71 : | /* stack pointer change for a function with n nonparams */ | ||
| 72 : | #define adjust(n) ((n) * -sizeof(Cell)) |
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