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/* catdvi - get text from DVI files
Copyright (C) 1999 Antti-Juhani Kaijanaho <gaia@iki.fi>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef REGSTA_H
#define REGSTA_H
#include "bytesex.h"
/* Handle the registers and the stack. */
#define REGISTER_H 0
#define REGISTER_V 1
#define REGISTER_W 2
#define REGISTER_X 3
#define REGISTER_Y 4
#define REGISTER_Z 5
/* Set registers to zero and initialize an empty stack with the given
maximum depth. */
void init_regs_stack(int depth);
/* Get the value of one of the registers (h, v, w, x, y, z). */
sint32 get_reg(int reg);
/* Set the value of one of the registers (h, v, w, x, y, z). */
void set_reg(int reg, sint32);
/* Add to the value of one of the registers. */
void add_reg(int reg, sint32 a);
/* Push the registers on the stack. */
void push_regs(void);
/* Pop the registers off the stack. */
void pop_regs(void);
/* For debug purposes, dump registers to the standard error stream, if
level is right. */
void dump_regs(int level);
#endif /* REGSTA_H */
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