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annotate src/pass1.c @ 15:1f598d89b9b0

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Started creating expression parser
author lost
date Thu, 23 Oct 2008 03:37:48 +0000
parents 05d4115b4860
children 3c0e5f311c95
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1 /*
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2 pass1.c
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3 Copyright © 2008 William Astle
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4
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5 This file is part of LWASM.
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6
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7 LWASM is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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21 Handles first pass of assembly
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22
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23 First pass involves the following:
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24
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25 1. read all lines from the main source file, following all "include"
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26 directives as appropriate
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27 2. parse each line into a symbol, operation code, and operand as appropriate
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28 3. each operand is evaluated for syntax and futher for value if there are
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29 multiple addressing sizes available; any undefined or not fully resolved
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30 value will default to the largest addressing size available (16 bit)
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31 4. addresses are assigned to every symbol defined in the assembly
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32 5. macros are defined and expanded at this pass
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35 */
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36
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37 #ifdef HAVE_CONFIG_H
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38 #include "config.h"
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39 #endif
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40
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41 #include <argp.h>
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42 #include <errno.h>
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43 #include <stdio.h>
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44 #include <stdlib.h>
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45
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46 #include "lwasm.h"
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47
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48 void lwasm_pass1(asmstate_t *as)
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49 {
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50 }