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annotate lwasm/pass1.c @ 452:40516fb9af07 lwtools-4.15

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Version 4.15
author William Astle <lost@l-w.ca>
date Sun, 07 Jan 2018 12:54:54 -0700
parents b1adf549d181
children 3d53f2e8d0e0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 pass1.c
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3
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4 Copyright © 2010 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #include <stdio.h>
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23 #include <string.h>
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24 #include <ctype.h>
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25 #include <stdlib.h>
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26
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27 #include <lw_alloc.h>
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28 #include <lw_string.h>
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29
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30 #include "lwasm.h"
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31 #include "instab.h"
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32 #include "input.h"
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33
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34 int expand_macro(asmstate_t *as, line_t *l, char **p, char *opc);
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35 int expand_struct(asmstate_t *as, line_t *l, char **p, char *opc);
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36 int add_macro_line(asmstate_t *as, char *optr);
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38 /*
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39 pass 1: parse the lines
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40
399
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41 line format if PRAGMA_NEWSOURCE is not in force:
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42
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43 [<symbol>] <opcode> <operand>[ <comment>]
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44
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45 If <symbol> is followed by a :, whitespace may precede the symbol
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46
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47 A line may optionally start with a number which must not be preceded by
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48 white space and must be followed by a single whitespace character. After
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49 that whitespace character, the line is parsed as if it had no line number.
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50
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51 Also, no spaces are permitted within <operand>.
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52
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53 With PRAGMA_NEWSOURCE in effect, line numbers are not allowed and there
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54 is no automatic comment at the end of each line. All comments must be
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55 introduced with the comment character. This allows the parser to handle
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56 spaces in operands unambiguously so in this mode, spaces are permitted
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57 within operands.
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58
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59 */
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60 void do_pass1(asmstate_t *as)
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61 {
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62 char *line;
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63 line_t *cl;
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64 char *p1;
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65 int stspace;
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66 char *tok, *sym = NULL;
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67 int opnum;
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68 int lc = 1;
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69 int nomacro;
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70
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71 for (;;)
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72 {
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73 nomacro = 0;
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74 if (sym)
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75 lw_free(sym);
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76 sym = NULL;
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77 line = input_readline(as);
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78 if (!line)
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79 break;
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80 if (line[0] == 1 && line[1] == 1)
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81 {
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82 // special internal directive
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83 // these DO NOT appear in the output anywhere
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84 // they are generated by the parser to pass information
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85 // forward
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86 for (p1 = line + 2; *p1 && !isspace(*p1); p1++)
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87 /* do nothing */ ;
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88 *p1++ = '\0';
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89 if (!strcmp(line + 2, "SETCONTEXT"))
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90 {
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91 as -> context = strtol(p1, NULL, 10);
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92 }
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93 else if (!strcmp(line + 2, "SETLINENO"))
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94 {
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95 lc = strtol(p1, NULL, 10);
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96 }
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97 else if (!strcmp(line + 2, "SETNOEXPANDSTART"))
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98 {
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99 as -> line_tail -> noexpand_start += 1;
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100 }
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101 else if (!strcmp(line + 2, "SETNOEXPANDEND"))
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102 {
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103 as -> line_tail -> noexpand_end += 1;
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104 }
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105 lw_free(line);
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106 if (lc == 0)
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107 lc = 1;
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108 continue;
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109 }
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110 debug_message(as, 75, "Read line: %s", line);
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111
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112 cl = lw_alloc(sizeof(line_t));
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113 memset(cl, 0, sizeof(line_t));
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114 cl -> outputl = -1;
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115 cl -> linespec = lw_strdup(input_curspec(as));
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116 cl -> prev = as -> line_tail;
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117 cl -> insn = -1;
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118 cl -> as = as;
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119 cl -> inmod = as -> inmod;
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120 cl -> csect = as -> csect;
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121 cl -> pragmas = as -> pragmas;
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122 cl -> context = as -> context;
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123 cl -> ltext = lw_strdup(line);
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124 cl -> soff = -1;
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125 cl -> dshow = -1;
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126 cl -> dsize = 0;
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127 cl -> dptr = NULL;
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128 cl -> isbrpt = 0;
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129 cl -> dlen = 0;
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130 as -> cl = cl;
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131 if (!as -> line_tail)
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132 {
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133 as -> line_head = cl;
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134 cl -> addr = lw_expr_build(lw_expr_type_int, 0);
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135 cl -> daddr = lw_expr_build(lw_expr_type_int, 0);
0
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136 }
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137 else
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138 {
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diff changeset
139 lw_expr_t te;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
140
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
141 cl -> lineno = as -> line_tail -> lineno + 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
142 as -> line_tail -> next = cl;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
143
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
144 // set the line address
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
145 te = lw_expr_build(lw_expr_type_special, lwasm_expr_linelen, cl -> prev);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
146 cl -> addr = lw_expr_build(lw_expr_type_oper, lw_expr_oper_plus, cl -> prev -> addr, te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
147 lw_expr_destroy(te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
148 lwasm_reduce_expr(as, cl -> addr);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
149 // lw_expr_simplify(cl -> addr, as);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
150
142
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
151 // set the data address if relevant
166
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
152 if (as -> output_format == OUTPUT_OS9)
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
153 {
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
154 te = lw_expr_build(lw_expr_type_special, lwasm_expr_linedlen, cl -> prev);
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
155 cl -> daddr = lw_expr_build(lw_expr_type_oper, lw_expr_oper_plus, cl -> prev -> daddr, te);
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
156 lw_expr_destroy(te);
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
157 lwasm_reduce_expr(as, cl -> daddr);
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
158 }
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
159 else
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
160 {
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
161 cl -> daddr = lw_expr_copy(cl -> addr);
324f28905144 Fixed problem with rmb, etc., not working right wrt line address when not in os9 mode
lost@l-w.ca
parents: 147
diff changeset
162 }
142
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
163
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
164 // carry DP value forward
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
165 cl -> dpval = cl -> prev -> dpval;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
166
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
167 }
433
b1adf549d181 Add some debugging instrumentation for tracking an expression bug
William Astle <lost@l-w.ca>
parents: 399
diff changeset
168 debug_message(as, 100, "Line pointer: %p", cl);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
169 if (!lc && strcmp(cl -> linespec, cl -> prev -> linespec))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
170 lc = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
171 if (lc)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
172 {
40
d96037ea0b80 Fixed line number counting being broken by macros
lost@l-w.ca
parents: 2
diff changeset
173 cl -> lineno = lc;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
174 lc = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
175 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
176 as -> line_tail = cl;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
177 // blank lines don't count for anything
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
178 // except a local symbol context break
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
179 if (!*line)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
180 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
181 as -> context = lwasm_next_context(as);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
182 goto nextline;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
183 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
184
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
185 // skip comments
399
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
186 // comments do not create a context break
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
187 if (*line == '*' || *line == ';' || *line == '#')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
188 goto nextline;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
189
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
190 p1 = line;
399
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
191 if (isdigit(*p1) && !CURPRAGMA(cl, PRAGMA_NEWSOURCE))
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
192 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
193 // skip line number
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
194 while (*p1 && isdigit(*p1))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
195 p1++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
196 if (!*p1 && !isspace(*p1))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
197 p1 = line;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
198 else if (*p1 && !isspace(*p1))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
199 p1 = line;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
200 else if (*p1 && isspace(*p1))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
201 p1++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
202 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
203
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
204 // blank line - context break
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
205 if (!*p1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
206 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
207 as -> context = lwasm_next_context(as);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
208 goto nextline;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
209 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
210
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
211 // comment - no context break
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
212 if (*p1 == '*' || *p1 == ';' || *p1 == '#')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
213 goto nextline;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
214
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
215 if (isspace(*p1))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
216 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
217 for (; *p1 && isspace(*p1); p1++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
218 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
219 stspace = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
220 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
221 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
222 stspace = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
223
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
224 if (!*p1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
225 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
226 // nothing but whitespace - context break
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
227 as -> context = lwasm_next_context(as);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
228 goto nextline;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
229 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
230
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
231 // find the end of the first token
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
232 for (tok = p1; *p1 && !isspace(*p1) && *p1 != ':' && *p1 != '='; p1++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
233 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
234
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
235 if (*p1 == ':' || *p1 == '=' || stspace == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
236 {
85
8fa52c3f2970 Make *pragma work correctly
lost@l-w.ca
parents: 59
diff changeset
237 if (*tok == '*' || *tok == ';' || *tok == '#')
8fa52c3f2970 Make *pragma work correctly
lost@l-w.ca
parents: 59
diff changeset
238 goto nextline;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
239 // have a symbol here
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
240 sym = lw_strndup(tok, p1 - tok);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
241 if (*p1 == ':')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
242 p1++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
243 for (; *p1 && isspace(*p1); p1++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
244 /* do nothing */ ;
399
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
245
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
246 if (*p1 == '=')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
247 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
248 tok = p1++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
249 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
250 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
251 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
252 for (tok = p1; *p1 && !isspace(*p1); p1++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
253 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
254 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
255 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
256 if (sym && strcmp(sym, "!") == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
257 cl -> isbrpt = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
258 else if (sym)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
259 cl -> sym = lw_strdup(sym);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
260 cl -> symset = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
261
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
262 // tok points to the opcode for the line or NUL if none
59
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
263
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
264 // if the first two chars of the opcode are "??", that's
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
265 // a flag to inhibit macro expansion
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
266 if (*tok && tok[0] == '?' && tok[1] == '?')
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
267 {
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
268 nomacro = 1;
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
269 tok += 2;
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
270 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
271 if (*tok)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
272 {
399
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
273 if (CURPRAGMA(cl, PRAGMA_TESTMODE))
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
274 {
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
275 /* in test mode, terminate the line here so we don't affect the parsers */
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
276 /* (cl -> ltext retains the full, unmodified string) */
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
277 char *t = strstr(p1, ";.");
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
278 if (t) *t = 0;
375
71f507f404f1 Add "testmode" pragma
William Astle <lost@l-w.ca>
parents: 374
diff changeset
279 }
71f507f404f1 Add "testmode" pragma
William Astle <lost@l-w.ca>
parents: 374
diff changeset
280
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
281 // look up operation code
93
5bf9edabd661 Squashed the remaining memory leaks revealed by valgrind
lost@l-w.ca
parents: 85
diff changeset
282 lw_free(sym);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
283 sym = lw_strndup(tok, p1 - tok);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
284 for (; *p1 && isspace(*p1); p1++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
285 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
286
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
287 for (opnum = 0; instab[opnum].opcode; opnum++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
288 {
385
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
289 // ignore 6800 compatibility opcodes unless asked for
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
290 if ((instab[opnum].flags & lwasm_insn_is6800) && !CURPRAGMA(cl, PRAGMA_6800COMPAT)) continue;
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
291 // ignore 6809 convenience opcodes unless asked for
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
292 if ((instab[opnum].flags & lwasm_insn_is6809conv) && !CURPRAGMA(cl, PRAGMA_6809CONV)) continue;
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
293 // ignore 6809 convenience opcodes in 6309 mode
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
294 if ((instab[opnum].flags & lwasm_insn_is6809conv) && !CURPRAGMA(cl, PRAGMA_6809)) continue;
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
295 // ignore 6309 convenience opcodes unless asked for
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
296 if ((instab[opnum].flags & lwasm_insn_is6309conv) && !CURPRAGMA(cl, PRAGMA_6309CONV)) continue;
4fd16faa4d93 Add various "convenience" ops
William Astle <lost@l-w.ca>
parents: 382
diff changeset
297
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
298 if (!strcasecmp(instab[opnum].opcode, sym))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
299 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
300 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
301
107
b3557f8325f7 Fixed bug with symbol on a line with a comment not getting registered
lost@l-w.ca
parents: 93
diff changeset
302 // have to go to linedone here in case there was a symbol
b3557f8325f7 Fixed bug with symbol on a line with a comment not getting registered
lost@l-w.ca
parents: 93
diff changeset
303 // to register on this line
85
8fa52c3f2970 Make *pragma work correctly
lost@l-w.ca
parents: 59
diff changeset
304 if (instab[opnum].opcode == NULL && (*tok == '*' || *tok == ';' || *tok == '#'))
107
b3557f8325f7 Fixed bug with symbol on a line with a comment not getting registered
lost@l-w.ca
parents: 93
diff changeset
305 goto linedone;
85
8fa52c3f2970 Make *pragma work correctly
lost@l-w.ca
parents: 59
diff changeset
306
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
307 // p1 points to the start of the operand
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
308
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
309 // if we're inside a macro definition and not at ENDM,
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
310 // add the line to the macro definition and continue
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
311 if (as -> inmacro && !(instab[opnum].flags & lwasm_insn_endm))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
312 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
313 add_macro_line(as, line);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
314 goto linedone;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
315 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
316
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
317 // if skipping a condition and the operation code doesn't
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
318 // operate within a condition (not a conditional)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
319 // do nothing
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
320 if (as -> skipcond && !(instab[opnum].flags & lwasm_insn_cond))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
321 goto linedone;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
322
371
2593fd529be5 Change PRAGMA_SHADOW to behave more as expected
William Astle <lost@l-w.ca>
parents: 370
diff changeset
323 if (!nomacro && (as->pragmas & PRAGMA_SHADOW))
53
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
324 {
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
325 // check for macros even if they shadow real operations
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
326 // NOTE: "ENDM" cannot be shadowed
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
327 if (expand_macro(as, cl, &p1, sym) == 0)
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
328 {
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
329 // a macro was expanded here
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
330 goto linedone;
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
331 }
cb4efc47ce9d Allow macros to shadow/override builtin operations when the "shadow" pragma is active, which is NOT the default
lost@l-w.ca
parents: 49
diff changeset
332 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
333 if (instab[opnum].opcode == NULL)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
334 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
335 cl -> insn = -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
336 if (*tok != ';' && *tok != '*')
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
337 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
338 // bad opcode; check for macro here
59
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
339 // but don't expand it if "nomacro" is in effect
1830faeef332 Added ?? prefix for opcode to inhibit macro expansion
lost@l-w.ca
parents: 53
diff changeset
340 if (nomacro || expand_macro(as, cl, &p1, sym) != 0)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
341 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
342 // macro expansion failed
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
343 if (expand_struct(as, cl, &p1, sym) != 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
344 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
345 // structure expansion failed
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
346 lwasm_register_error(as, cl, E_OPCODE_BAD);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
347 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
348 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
349 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
350 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
351 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
352 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
353 cl -> insn = opnum;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
354 // no parse func means operand doesn't matter
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
355 if (instab[opnum].parse)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
356 {
367
c6d2a1f54e0c Change processor target variations to pragmas.
William Astle <lost@l-w.ca>
parents: 343
diff changeset
357 if (CURPRAGMA(cl, PRAGMA_6809) && (instab[opnum].flags & lwasm_insn_is6309))
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
358 lwasm_register_error2(as, cl, E_6309_INVALID, "(%s)", sym);
367
c6d2a1f54e0c Change processor target variations to pragmas.
William Astle <lost@l-w.ca>
parents: 343
diff changeset
359 if (!CURPRAGMA(cl, PRAGMA_6809) && (instab[opnum].flags & lwasm_insn_is6809))
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
360 lwasm_register_error2(as, cl, E_6809_INVALID, "(%s)", sym);
367
c6d2a1f54e0c Change processor target variations to pragmas.
William Astle <lost@l-w.ca>
parents: 343
diff changeset
361
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
362 if (as -> instruct == 0 || instab[opnum].flags & lwasm_insn_struct)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
363 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
364 cl -> len = -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
365 // call parse function
329
9f7889139b06 Fix 6809 mode to count 6309 instructions as non-existent
William Astle <lost@l-w.ca>
parents: 273
diff changeset
366 debug_message(as, 100, "len = %d, dlen = %d", cl -> len, cl -> dlen);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
367 (instab[opnum].parse)(as, cl, &p1);
382
80d615a6642c Add REORG pseudo op
William Astle <lost@l-w.ca>
parents: 375
diff changeset
368
343
98f3e016cfd8 Add pragma to turn off forward reference optimization
William Astle <lost@l-w.ca>
parents: 336
diff changeset
369 // if we're forcing address modes on pass 1, force a resolution
98f3e016cfd8 Add pragma to turn off forward reference optimization
William Astle <lost@l-w.ca>
parents: 336
diff changeset
370 if (CURPRAGMA(cl, PRAGMA_FORWARDREFMAX) && instab[opnum].resolve)
98f3e016cfd8 Add pragma to turn off forward reference optimization
William Astle <lost@l-w.ca>
parents: 336
diff changeset
371 {
98f3e016cfd8 Add pragma to turn off forward reference optimization
William Astle <lost@l-w.ca>
parents: 336
diff changeset
372 (instab[opnum].resolve)(as, cl, 1);
98f3e016cfd8 Add pragma to turn off forward reference optimization
William Astle <lost@l-w.ca>
parents: 336
diff changeset
373 }
142
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
374 if ((cl -> inmod == 0) && cl -> len >= 0 && cl -> dlen >= 0)
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
375 {
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
376 if (cl -> len == 0)
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
377 cl -> len = cl -> dlen;
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
378 else
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
379 cl -> dlen = cl -> len;
697bc543368c Implement distinction between . and * for OS9 modules
lost@l-w.ca
parents: 107
diff changeset
380 }
399
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
381 if (!CURPRAGMA(cl, PRAGMA_NEWSOURCE))
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
382 {
399
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
383 if (*p1 && !isspace(*p1) && !(cl -> err))
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
384 {
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
385 // flag bad operand error
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
386 lwasm_register_error2(as, cl, E_OPERAND_BAD, "(%s)", p1);
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
387 }
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
388 }
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
389 else
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
390 {
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
391 lwasm_skip_to_next_token(cl, &p1);
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
392 /* if we did not hit the end of the line and we aren't at a comment character, error out */
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
393 if (*p1 && *p1 != ';' && *p1 != '#' && *p1 != ';')
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
394 {
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
395 // flag bad operand error
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
396 lwasm_register_error2(as, cl, E_OPERAND_BAD, "%s", p1);
6153cb49403c Initial commit of pragma newsource
William Astle <lost@l-w.ca>
parents: 385
diff changeset
397 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
398 }
43
18b49cf10ae9 Added an instruction reduction immediately after instruction parsing to minimize memory footprint and expression complexity
lost@l-w.ca
parents: 40
diff changeset
399
18b49cf10ae9 Added an instruction reduction immediately after instruction parsing to minimize memory footprint and expression complexity
lost@l-w.ca
parents: 40
diff changeset
400 /* do a reduction on the line expressions to avoid carrying excessive expression baggage if not needed */
336
30b2bad9b5eb Factor some code for simplifying lines so it can be reused
William Astle <lost@l-w.ca>
parents: 333
diff changeset
401 lwasm_reduce_line_exprs(cl);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
402 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
403 else if (as -> instruct == 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
404 {
370
8764142b3192 Convert internal error/warning handling framework to a new unified system
William Astle <lost@l-w.ca>
parents: 367
diff changeset
405 lwasm_register_error2(as, cl, E_OPERAND_BAD, "(%s)", p1);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
406 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
407 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
408 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
409 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
410
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
411 linedone:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
412 if (!as -> skipcond && !as -> inmacro)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
413 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
414 if (cl -> sym && cl -> symset == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
415 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
416 debug_message(as, 50, "Register symbol %s: %s", cl -> sym, lw_expr_print(cl -> addr));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
417
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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418 // register symbol at line address
142
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419 if (instab[cl -> insn].flags & lwasm_insn_setdata)
0
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420 {
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421 if (!register_symbol(as, cl, cl -> sym, cl -> daddr, symbol_flag_none))
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422 {
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423 // symbol error
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424 // lwasm_register_error2(as, cl, E_SYMBOL_BAD, "(%s)", cl -> sym);
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425 }
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426 }
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427 else
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428 {
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429 if (!register_symbol(as, cl, cl -> sym, cl -> addr, symbol_flag_none))
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430 {
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431 // symbol error
370
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432 // lwasm_register_error2(as, cl, E_SYMBOL_BAD, "(%s)", cl -> sym);
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433 }
0
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434 }
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435 }
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436 debug_message(as, 40, "Line address: %s", lw_expr_print(cl -> addr));
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437 }
219
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438 if (as -> skipcond || as -> inmacro || cl -> ltext[0] == 1)
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439 cl -> hideline = 1;
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440
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441 nextline:
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442 if (sym)
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443 lw_free(sym);
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444 sym = NULL;
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445
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446 lw_free(line);
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447
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448 if (as -> preprocess && cl -> hideline == 0)
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449 {
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450 printf("%s\n", cl -> ltext);
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451 }
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452
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453 // if we've hit the "end" bit, finish out
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454 if (as -> endseen)
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455 return;
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456 }
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457 }