asfpga.h

asfpga is an assembler written for use in FPGA design. It can be easily modified for your instructio

/*
asfpga version 1.00e
====================
asfpga is an assembler written for use in FPGA design. It can be easily modified
for your instruction set. The ultimate goal of this software is to allow
a FPGA designer to easily write assembly code for a custom instruction set.

The current version allows to create a listing file, a memory dump file which can be used in debugging HDL code using $readmemh() or equivalent routine, and a binary file which can be used to program a EPROM.

Copyright (C) Hari Krishnan 2002-2003, [e-mail]
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

*/
#ifndef _asfpga_h
#define _asfpga_h

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>

#define NUM_LBLS 99
#define EPROM_SIZ 2048

unsigned char binData[EPROM_SIZ];
int lblCount;

struct {
	char labelName[81];
	unsigned int addr;
} labelDef[NUM_LBLS];

void getLabels(FILE * inputFile);
void parseFile(char * argv);
void printLabel(FILE * listFile);
char * getOp(char insBuf[], char operand1[], char operand2[], unsigned int addr);
int atoh(char *sp);
int power(int base, int n);
void writeMemFile(FILE * readMemFile, char * opcode, unsigned int addr);

#endif