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/* Common definitions for gpasm
Copyright (C) 1998 James Bowman
This file is part of gpasm.
gpasm 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, or (at your option)
any later version.
gpasm 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 gpasm; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#if !defined(__GPASM_H)
#define __GPASM_H
#include <stdio.h>
#include "processor.h"
#define GPASM_VERSION_STRING "gpasm 0.0.7 alpha"
#define SPECIAL_PATH DATADIR "/special.inc"
#define STRCMP(s1, s2) (state.case_insensitive ? \
strcasecmp((s1), (s2)) : \
strcmp((s1), (s2)))
typedef int gpasmVal; /* The type that internal arithmetic uses */
enum outfile { normal, suppress, named };
#define MAX_RAM 0x1000 /* Maximum RAM */
#define MAX_I_MEM 0x10000 /* Maximum instruction memory */
extern struct gpasm_state {
int radix;
enum { inhx8m, inhx8s, inhx32 } hex_format;
int case_insensitive;
int quiet;
enum pic_processor processor;
int pass; /* 1 or 2 */
int processor_chosen; /* Nonzero after processor-specific init */
struct symbol_table
*stBuiltin, /* Built-ins: instructions, pseudo-ops */
*stGlobal, /* Global symbols */
*stTop, /* Top of locals stack (stGlobal is base) */
*stDefines, /* Preprocessor #defines */
*stMacros; /* Macros */
unsigned int
i_memory[MAX_I_MEM]; /* Instruction memory */
char
badram[MAX_RAM]; /* nonzero indicates illegal memory */
unsigned int maxram; /* Highest legal memory location */
unsigned int org; /* Current code-generation point */
enum outfile
lstfile, /* List output file control */
hexfile; /* Hex output file control */
char *srcfilename, /* Source (.asm) file name */
hexfilename[BUFSIZ], /* Hex (.hex) file name */
lstfilename[BUFSIZ]; /* List (.lst) file name */
struct { /* List file state: */
FILE *f; /* List file output */
unsigned int
lineofpage, /* What line are we at within the page */
page, /* What page are we at */
linesperpage, /* Lines per page */
symboltable; /* Symbol table dump enabled */
struct {
unsigned int was_org; /* value of state.org at start of line */
/* What kind of line was it? */
enum { none, /* Nothing - blank line */
org, /* ORG pseudo-op */
insn, /* Some other instruction or pseudo */
equ } /* An equate */
linetype;
} line;
char startdate[80]; /* When assembly started */
int enabled; /* nonzero if listing is enabled */
char title_name[80]; /* given in TITLE directive */
int tabstop; /* tab-stop distance */
} lst;
struct source_context *src; /* Top of the stack of source files */
struct { /* Totals for errors, warnings, messages */
int errors;
int warnings;
int messages;
} num;
struct amode *astack; /* Stack of amodes (macros, etc) */
gpasmVal cblock; /* cblock constant */
struct macro_head *mac_head; /* Starting a macro... */
struct macro_body **mac_prev; /* Stitching ptr */
struct macro_body *mac_body; /* While we're building a macro */
} state;
#define MEM_USED_MASK 0x80000000 /* Means occupied in state.i_memory above */
struct variable {
int value;
};
/************************************************************************/
struct source_context {
char *name;
FILE *f, *f2;
struct yy_buffer_state *yybuf;
unsigned int line_number;
struct source_context *prev;
char line[BUFSIZ];
};
void yyerror(char *s);
int gpasm_number(char *);
void open_file(char *name);
void set_global(char *name, gpasmVal value);
void select_radix(char *name);
/************************************************************************/
/* Parse node: created by the parser, interpreted by the 'backend' */
struct pnode {
enum pnode_tag { constant, symbol, string, list, binop, unop } tag;
union {
int constant;
char *symbol;
struct {
struct pnode *head, *tail;
} list;
struct {
int op;
struct pnode *p0, *p1;
} binop;
struct {
int op;
struct pnode *p0;
} unop;
char *string;
} value;
};
/************************************************************************/
struct macro_head {
int pass; /* Pass in which macro was defined: 1 or 2 */
struct pnode *parms;
struct macro_body *body;
int line_number;
};
struct macro_body {
char *label; /* Label for the line */
char *op; /* Operation (or NULL) */
struct pnode *parms; /* Parameters for op (or NULL) */
char *src_line; /* Original source line - for listing */
struct macro_body *next; /* Next line in listing */
};
#endif
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