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Clean up various warnings when building under -Wall Add some gimmicks to prevent fread() and fwrite() warnings about ignoring the return value. Yes, this is probably not a good thing to do, but doing something with a non-success return value is going to involve crashing out or something anyway. Also fix several warnings about variables used while possibly uninitialized. The code flow shows that this cannot be the case but initializing them to a plausible value at declaration time costs pretty much nothing and it makes gcc happy. Also caught a use of | instead of || which probably would have caused a certain check for duplicate declarations in __os9 sections to behave oddly.
author William Astle <lost@l-w.ca>
date Wed, 06 Feb 2013 21:43:10 -0700
parents 697bc543368c
children 507f442dc71e
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1 /*
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2 instab.h
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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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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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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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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 Contains definitions for the instruction table
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22 */
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24 #ifndef __instab_h_seen__
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25 #define __instab_h_seen__
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27 #include "lwasm.h"
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29 typedef struct
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30 {
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31 char *opcode; /* the mneumonic */
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32 int ops[4]; /* opcode values for up to four addr modes */
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33 void (*parse)(asmstate_t *as, line_t *l, char **optr); /* parse operand for insn */
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34 void (*resolve)(asmstate_t *as, line_t *l, int force); /* resolve instruction to code */
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35 void (*emit)(asmstate_t *as, line_t *l); /* resolve instruction to code */
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36 int flags; /* flag for this instruction */
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37 } instab_t;
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39 enum
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40 {
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41 lwasm_insn_cond = 1, /* conditional instruction */
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42 lwasm_insn_endm = 2, /* end of macro */
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43 lwasm_insn_setsym = 4, /* insn sets symbol address */
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44 lwasm_insn_is6309 = 8, /* insn is 6309 only */
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45 lwasm_insn_struct = 16, /* insn allowed in a struct */
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46 lwasm_insn_setdata = 32, /* insn uses the data address for symbols */
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47 lwasm_insn_normal = 0
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48 };
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51 #define PARSEFUNC(fn) void (fn)(asmstate_t *as, line_t *l, char **p)
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52 #define RESOLVEFUNC(fn) void (fn)(asmstate_t *as, line_t *l, int force)
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53 #define EMITFUNC(fn) void (fn)(asmstate_t *as, line_t *l)
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55 #ifndef __instab_c_seen__
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56 extern instab_t instab[];
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57 #endif //__instab_c_seen__
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59 #endif //__instab_h_seen__