LWTools Old Repo: lwasm/parse.c annotate

annotate lwasm/parse.c @ 221:271c0ef9ea60

Fixed segfault in import/extern pseudo op

author	lost
date	Sat, 09 May 2009 16:32:47 +0000
parents	bae1e3ecdce1
children	436b36214e35

rev	line source
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	1 /*
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	2 parse.c
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	3 Copyright © 2008 William Astle
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	4
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	5 This file is part of LWASM.
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	6
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	7 LWASM is free software: you can redistribute it and/or modify it under the
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	8 terms of the GNU General Public License as published by the Free Software
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	9 Foundation, either version 3 of the License, or (at your option) any later
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	10 version.
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	11
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	12 This program is distributed in the hope that it will be useful, but WITHOUT
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	15 more details.
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	16
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	17 You should have received a copy of the GNU General Public License along with
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	18 this program. If not, see <http://www.gnu.org/licenses/>.
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	19 */
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	20
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	21 /*
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	22 Contains the general parser
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	23 */
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	24
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	25 #define __parse_c_seen__
212 bae1e3ecdce1 More preparation for gnulib integration lost parents: 190 diff changeset	26 #include <config.h>
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	27
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	28 #include <ctype.h>
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	29 #include <string.h>
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	30
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	31 #include "lwasm.h"
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	32 #include "instab.h"
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	33 #include "util.h"
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	34
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	35 // parse a line and despatch to the appropriate handlers for opcodes
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	36 int lwasm_parse_line(asmstate_t as, lwasm_line_t l)
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	37 {
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	38 char p, p2;
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	39 char *opc;
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	40 int opnum;
44 2330b88f9600 Added simple output listing lost parents: 38 diff changeset	41 char *sym = NULL;
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	42
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	43 // if this was a bad op first pass (or otherwise a no-process line)
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	44 // ignore it
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	45 if (l -> badop)
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	46 return;
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	47
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	48 p = l -> text;
101 f59c0916753d Fixed relative branches and PCR addressing to handle constant intra-section references properly lost parents: 99 diff changeset	49 l -> sect = as -> csect;
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	50
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	51 // blank lines are a no brainer
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	52 if (!*p)
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	53 {
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	54 as -> context = lwasm_next_context(as);
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	55 return 0;
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	56 }
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	57
52 b9856da2674a Added file inclusion lost parents: 44 diff changeset	58 // for output generation later but only on pass 1
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	59 // also used by some pseudo ops on pass 2
52 b9856da2674a Added file inclusion lost parents: 44 diff changeset	60 if (as -> passnum == 1)
b9856da2674a Added file inclusion lost parents: 44 diff changeset	61 l -> codeaddr = as -> addr;
44 2330b88f9600 Added simple output listing lost parents: 38 diff changeset	62
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	63 // if it's a comment, return (this doesn't cause a context change)
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	64 if (p == '' \|\| *p == ';')
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	65 return;
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	66
169 99300be2d3bd Allow lines starting with # to be ignored lost parents: 157 diff changeset	67 // if we have C pre-processor directives/output, ignore it
99300be2d3bd Allow lines starting with # to be ignored lost parents: 157 diff changeset	68 if (*p == '#')
99300be2d3bd Allow lines starting with # to be ignored lost parents: 157 diff changeset	69 return;
99300be2d3bd Allow lines starting with # to be ignored lost parents: 157 diff changeset	70
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	71 // if we start with a non-space character, it's a symbol
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	72 if (!isspace(*p))
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	73 {
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	74 // we have a symbol specified here
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	75 // parse it out and record it for later use
157 745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	76 for (p2 = p; p2 && !isspace(p2) && *p2 != ':'; p2++)
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	77 /* do nothing */ ;
538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	78
538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	79 sym = lwasm_alloc((p2 - p) + 1);
538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	80 sym[p2 - p] = '\0';
538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	81 memcpy(sym, p, p2 - p);
538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	82
44 2330b88f9600 Added simple output listing lost parents: 38 diff changeset	83 p = p2;
157 745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	84 if (!*sym)
745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	85 {
745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	86 register_error(as, l, 1, "Invalid symbol");
745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	87 lwasm_free(sym);
745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	88 sym = NULL;
745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	89 }
745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	90 if (*p == ':')
745721e13970 allow : after symbol at line start lost parents: 151 diff changeset	91 p++;
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	92 }
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	93 l -> sym = sym;
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	94
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	95 // now skip any whitespace to find the opcode
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	96 while (p && isspace(p))
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	97 p++;
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	98
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	99 // is the line blank?
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	100 if (!*p && !sym)
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	101 {
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	102 // nothing but white space is a context break
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	103 as -> context = lwasm_next_context(as);
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	104 return;
37 538e15927776 Added symbol handling to expression subsystem; adpated instruction handlers to the new scheme; misc fixes lost parents: 36 diff changeset	105 }
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	106
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	107 // parse the opcode
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	108 for (p2 = p; p2 && !isspace(p2); p2++)
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	109 /* do nothing */ ;
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	110
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	111 opc = lwasm_alloc((p2 - p) + 1);
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	112 memcpy(opc, p, p2 - p);
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	113 opc[p2 - p] = '\0';
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	114
190 563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	115 l -> forceglobal = 0;
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	116 // if the opcode contains an =, treat it as "symbol = expr"
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	117 if (!sym && strchr(opc, '='))
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	118 {
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	119 for (p2 = opc; p2 && p2 != '='; p2++)
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	120 /* do nothing */ ;
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	121 sym = lwasm_alloc((p2 - opc) + 1);
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	122 memcpy(sym, opc, p2 - opc);
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	123 sym[p2 - opc] = '\0';
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	124 l -> sym = sym;
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	125
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	126 p2 = p + (p2 - opc) + 1;
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	127 // p2++;
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	128 opc[0] = '=';
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	129 opc[1] = '\0';
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	130 debug_message(2, "Found opcode = with symbol %s and operand %s", sym, p2);
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	131 l -> forceglobal = 1;
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	132 }
563adfccb645 Added 'sym=expr' opcode handling lost parents: 169 diff changeset	133
38 9bd584bb6296 Added debugging message infrastructure lost parents: 37 diff changeset	134 debug_message(2, "Found operation code: '%s'", opc);
9bd584bb6296 Added debugging message infrastructure lost parents: 37 diff changeset	135
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	136 // skip intervening whitespace if present
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	137 while (p2 && isspace(p2))
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	138 p2++;
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	139
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	140 // look up instruction in insn table
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	141 for (opnum = 0; instab[opnum].opcode; opnum++)
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	142 {
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	143 if (!strcasecmp(instab[opnum].opcode, opc))
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	144 break;
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	145 }
99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	146
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	147 // if we found no operation, check if we had a comment
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	148 // the reason this check is here is to allow for "private"
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	149 // operation codes like "*pragma" which will be ignored by
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	150 // other assemblers
68 cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	151 // also skip empty ops
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	152 if (!(instab[opnum].opcode))
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	153 {
68 cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	154 if (opc == '' \|\| opc == ';' \|\| !opc)
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	155 goto done_line;
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	156 }
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	157
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	158 // now we have the opcode and the symbol, we can decide if we're
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	159 // actually going to do anything with this line
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	160
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	161 // we will NOT call the function if any of the following are true:
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	162
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	163 // - we are skipping a condition and the operation code is not a conditional
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	164 // - we are defining a macro and the operation code is not ENDM
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	165
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	166 // we will call the function in any other circumstance
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	167
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	168 // first condition above
57 035b95a3690f Added conditional assembly and macros lost parents: 52 diff changeset	169 if (as -> inmacro && instab[opnum].endm == 0)
035b95a3690f Added conditional assembly and macros lost parents: 52 diff changeset	170 {
035b95a3690f Added conditional assembly and macros lost parents: 52 diff changeset	171 add_macro_line(as, l -> text);
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	172 goto done_line;
57 035b95a3690f Added conditional assembly and macros lost parents: 52 diff changeset	173 }
035b95a3690f Added conditional assembly and macros lost parents: 52 diff changeset	174
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	175 // second condition above
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	176 if (as -> skipcond && instab[opnum].iscond == 0)
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	177 goto done_line;
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	178
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	179 // we've registered the symbol as needed
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	180 // now we need to check for a macro call IFF we don't collide with
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	181 // an operation code; otherwise, call the operation function
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	182 if (instab[opnum].opcode)
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	183 {
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	184 if (instab[opnum].fn)
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	185 {
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	186 (instab[opnum].fn)(as, l, &p2, opnum);
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	187 }
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	188 else
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	189 {
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	190 // carp about unimplemented operation
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	191 register_error(as, l, 1, "Unimplemented operation code: %s", opc);
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	192 }
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	193 }
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	194 else
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	195 {
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	196 if (expand_macro(as, l, &p2, opc) == 0)
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	197 goto done_line;
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	198
66 aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	199 // carp about an unknown operation code and note that fact for
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	200 // pass 2 in case a macro appears later with the same name!
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	201 register_error(as, l, 1, "Uknown operation code: %s", opc);
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	202 l -> badop = 1;
aa9d9fedfdf4 Redid lwasm_parse_line() to correct overly complex logic flaws lost parents: 64 diff changeset	203 }
57 035b95a3690f Added conditional assembly and macros lost parents: 52 diff changeset	204
035b95a3690f Added conditional assembly and macros lost parents: 52 diff changeset	205 done_line:
68 cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	206 if (!(as -> skipcond \|\| as -> inmacro))
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	207 {
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	208 // register symbol if the operation didn't
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	209 if (sym && instab[opnum].setsym == 0)
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	210 {
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	211 if (as -> passnum == 1)
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	212 {
71 90a5657d5408 Fixed problem with symbols being registered with the address of the NEXT instruction lost parents: 68 diff changeset	213 debug_message(1, "Registering symbol '%s' at %04X", sym, l -> codeaddr);
90a5657d5408 Fixed problem with symbols being registered with the address of the NEXT instruction lost parents: 68 diff changeset	214 if (lwasm_register_symbol(as, l, sym, l -> codeaddr, SYMBOL_NORM) < 0)
68 cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	215 l -> sym = NULL;
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	216 else
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	217 l -> addrset = 1;
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	218 }
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	219 }
cef25b0088e6 Fixed some problems detected by valgrind and testing lost parents: 66 diff changeset	220 }
99 3dcb12a6f4ff Fixed problem handling sections with options on pass 2 lost parents: 91 diff changeset	221
85 918be0c02239 Started adding object target output lost parents: 71 diff changeset	222 l -> sect = as -> csect;
91 718998b673ee Added incomplete references to object output and added support for section base terms in expression handler lost parents: 85 diff changeset	223 l -> context = as -> context;
85 918be0c02239 Started adding object target output lost parents: 71 diff changeset	224
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	225 lwasm_free(opc);
44 2330b88f9600 Added simple output listing lost parents: 38 diff changeset	226 if (sym)
2330b88f9600 Added simple output listing lost parents: 38 diff changeset	227 lwasm_free(sym);
36 99e3b3310bac Added missing parse.c file to repository lost parents: diff changeset	228 }

Mercurial > hg-old > index.cgi

annotate lwasm/parse.c @ 221:271c0ef9ea60