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/*
* COPYRIGHT
*
* camv-rnd - electronics-related CAM viewer
* Copyright (C) 2019,2024 Tibor 'Igor2' Palinkas
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Contact:
* Project page: http://repo.hu/projects/camv-rnd
* lead developer: http://repo.hu/projects/camv-rnd/contact.html
* mailing list: camv-rnd (at) list.repo.hu (send "subscribe")
*/
#ifndef GCODE_VM_H
#define GCODE_VM_H
#include <genvector/vtd0.h>
typedef enum {
PUSH_NUM = 1000,
ADD, SUB, MUL, DIV,
ASSIGN, PARAM, DO
} gcode_i_t;
typedef struct gcode_inst_s gcode_inst_t;
struct gcode_inst_s {
int inst; /* a letter or a T_ or gcode_i_t */
double payload;
long lineno; /* in the file */
unsigned do_pop:1;
gcode_inst_t *next;
};
typedef enum {
GCP_DELAY_OFF = 0, /* start collecting instructions on the first (main program) list */
GCP_DELAY_ON, /* start collecting instructions on the 2nd (temporary list) */
GCP_DELAY_APPLY /* append 2nd list to the main and empty it */
} gcode_delay_t;
typedef struct gcode_prg_s gcode_prg_t;
struct gcode_prg_s {
struct {
unsigned laser:1;
} cfg;
/*** shared ***/
void (*error)(gcode_prg_t *ctx, int runtime, const char *msg); /* provided by the caller */
void (*set_lineno)(gcode_prg_t *ctx, int lineno); /* optional: provided by the caller */
long ip;
int lineno;
/*** lexer states ***/
int (*get_char)(gcode_prg_t *ctx); /* provided by the caller */
int in_eof, pushback, subseq_error;
long line, col, used, alloced;
char *buff;
/*** compiler states ***/
gcode_inst_t *first, *last; /* main program */
gcode_inst_t *first2, *last2; /* temporary storage for assignments */
gcode_delay_t delay;
long ip2;
/*** execution states ***/
int (*execute_code)(gcode_prg_t *ctx, int code, double param); /* provided by the caller; returns 0 on success; code is DO for executing the line */
double params[5400];
vtd0_t stack;
unsigned laser_on:1;
/*** caller's ***/
void *user_data;
void *exec_data;
};
void gcode_delayed(gcode_prg_t *ctx, gcode_delay_t delay);
gcode_inst_t *gcode_append(gcode_prg_t *ctx, gcode_i_t inst, double payload);
void gcode_set_lineno(gcode_prg_t *ctx, int lineno);
void gcode_dump_inst(const char *prefix, gcode_inst_t *inst);
void gcode_dump_prg(const char *prefix, gcode_prg_t *prg);
int gcodeparse(gcode_prg_t *ctx);
int gcode_execute(gcode_prg_t *ctx);
#endif
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