Annotation of gforth/vmgen-ex2/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:
! 26: #ifdef USE_CASTS
! 27: typedef long Cell;
! 28: Typedef Cell Inst;
! 29:
! 30: /* type change macros; these are specific to the types you use, so you
! 31: have to change this part */
! 32: #define vm_Cell2i(_cell,x) ((x)=(long)(_cell))
! 33: #define vm_i2Cell(_cell,x) ((x)=(Cell)(_cell))
! 34: #define vm_Cell2target(_cell,x) ((x)=(Inst *)(_cell))
! 35: #define vm_target2Cell(_cell,x) ((x)=(Cell)(_cell))
! 36: #define vm_Cell2a(_cell,x) ((x)=(char *)(_cell))
! 37: #define vm_a2Cell(_cell,x) ((x)=(Cell)(_cell))
! 38: #else
! 39: typedef union Cell {
! 40: long i;
! 41: union Cell *target;
! 42: Label inst;
! 43: char *a;
! 44: } Cell, Inst;
! 45:
! 46: #define vm_Cell2i(_cell,_x) ((_x)=(_cell).i)
! 47: #define vm_i2Cell(_x,_cell) ((_cell).i=(_x))
! 48: #define vm_Cell2target(_cell,_x) ((_x)=(_cell).target)
! 49: #define vm_target2Cell(_x,_cell) ((_cell).target=(_x))
! 50: #define vm_Cell2a(_cell,_x) ((_x)=(_cell).a)
! 51: #define vm_a2Cell(_x,_cell) ((_cell).a=(_x))
! 52: #endif
! 53:
! 54: #define VM_IS_INST(_inst, n) ((_inst).inst == vm_prim[n])
! 55:
! 56: extern Label *vm_prim;
! 57: extern int locals;
! 58: extern struct Peeptable_entry **peeptable;
! 59: extern int vm_debug;
! 60: extern FILE *yyin;
! 61: extern int yylineno;
! 62: extern char *program_name;
! 63: extern FILE *vm_out;
! 64: extern Inst *vmcodep;
! 65: extern Inst *last_compiled;
! 66: extern Inst *vmcode_end;
! 67:
! 68: /* generic vmgen support functions (e.g., wrappers) */
! 69: void gen_inst(Inst **vmcodepp, Label i);
! 70: void init_peeptable(void);
! 71: void vm_disassemble(Inst *ip, Inst *endp, Label prim[]);
! 72: void vm_count_block(Inst *ip);
! 73: struct block_count *block_insert(Inst *ip);
! 74: void vm_print_profile(FILE *file);
! 75:
! 76: /* mini type-specific support functions */
! 77: void genarg_i(Inst **vmcodepp, long i);
! 78: void printarg_i(long i);
! 79: void genarg_target(Inst **vmcodepp, Inst *target);
! 80: void printarg_target(Inst *target);
! 81: void printarg_a(char *a);
! 82: void printarg_Cell(Cell i);
! 83:
! 84: /* engine functions (type not fixed) */
! 85: long engine(Inst *ip0, Cell *sp, char *fp);
! 86: long engine_debug(Inst *ip0, Cell *sp, char *fp);
! 87:
! 88: /* other generic functions */
! 89: int yyparse(void);
! 90:
! 91: /* mini-specific functions */
! 92: void insert_func(char *name, Inst *start, int locals, int nonparams);
! 93: Inst *func_addr(char *name);
! 94: long func_calladjust(char *name);
! 95: void insert_local(char *name);
! 96: long var_offset(char *name);
! 97: void gen_main_end(void);
! 98:
! 99: /* stack pointer change for a function with n nonparams */
! 100: #define adjust(n) ((n) * -sizeof(Cell))
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