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  36 <h2 class="chapter">1 What's New</h2>
  37
  38 <h3 class="heading">Version 1.5.2</h3>
  39
  40 More bug fixes.
  41
  42 <h3 class="heading">Version 1.5.0</h3>
  43
  44 Added some stuff, fixed some bugs.
  45
  46 <h3 class="heading">Version 1.4.5</h3>
  47
  48 <p><strong>Assembler</strong>
  49
  50      <ul>
  51 <li>Fixed bug that prevented local labels from being used as operand to <code>DB</code>, <code>DW</code>, <code>DD</code> directives.
  52
  53      <li>Fixed bug in processing of array of operands to <code>DB</code>, <code>DW</code>, <code>DD</code> directives (some high-level constructs were only reduced in first item).
  54
  55      <li>Negative immediate operand no longer gives truncation warning as long as it fits in signed byte (<code>DB</code>, immediate mode instructions) or word (<code>DW</code>).
  56
  57      <li>Added <code>BLT</code>, <code>BGE</code> as aliases for <code>BCC</code>, <code>BCS</code> (unsigned comparison).
  58
  59    </ul>
  60
  61    <p><strong>Linker</strong>
  62
  63      <ul>
  64 <li>Prints physical addresses of relocated public symbols when <code>--verbose</code>.
  65
  66    </ul>
  67
  68 <h3 class="heading">Version 1.4.4</h3>
  69
  70 <p><strong>Linker</strong>
  71
  72      <ul>
  73 <li>Fixed bug in RAM allocator.
  74
  75      <li>Prints statistics on RAM management (total, used, left) when <code>--verbose</code>.
  76
  77    </ul>
  78
  79 <h3 class="heading">Version 1.4.3</h3>
  80
  81 <p><strong>Assembler</strong>
  82
  83      <ul>
  84 <li>Support for anonymous unions.
  85
  86      <li>Fixed bug in result of <code>sizeof</code> operator when applied to an initialized structure variable.
  87
  88      <li>Returns error code so that i.e. Make stops after the first erroneous invocation.
  89
  90    </ul>
  91
  92    <p><strong>Linker</strong>
  93
  94      <ul>
  95 <li>Returns error code so that i.e. Make stops after the first erroneous invocation.
  96
  97    </ul>
  98
  99 <h3 class="heading">Version 1.4.2</h3>
 100
 101 <p><strong>Assembler</strong>
 102
 103      <ul>
 104 <li>Symbols can be indexed statically, C-style; see section 3.2.16, &ldquo;Indexing symbols statically&rdquo;.
 105
 106      <li><code>sizeof</code> operator now works correctly when applied to an array.
 107
 108      <li>Fixed bug that lead to dysfunctional symbol table when using `=' equates.
 109
 110    </ul>
 111
 112    <p><strong>Linker</strong>
 113
 114      <ul>
 115 <li>Fixed bug in RAM allocator.
 116
 117      <li>Fixed line number bug in error messages.
 118
 119      <li>Removed duplicate error message (unresolved symbols).
 120
 121    </ul>
 122
 123 <h3 class="heading">Version 1.4.1</h3>
 124
 125 <p>This is a bugfix release.
 126
 127    <p><strong>Assembler</strong>
 128
 129      <ul>
 130 <li>Fixed bug in processing of declaration of array of user-defined type (!).
 131
 132      <li>Fixed bug that lead to no error message when declaring an uninitialized variable of non-existing user-defined type.
 133
 134    </ul>
 135
 136    <p><strong>Linker</strong>
 137
 138      <ul>
 139 <li>Fixed imperfection in allocation of alignment-constrained data.
 140
 141      <li>Fixed memory leak in RAM allocator.
 142
 143    </ul>
 144
 145 <h3 class="heading">Version 1.4.0</h3>
 146
 147 <p><strong>Assembler</strong>
 148
 149      <ul>
 150 <li>Added <code>--debug</code> switch (short form: <code>-g</code>). When this switch is given, the assembler will retain file and line information in the object file, which the linker can use to produce more descriptive link-time warning and error messages.
 151
 152      <li><code>LABEL</code> directive can take a specific address as argument, so that &ldquo;pointers&rdquo; can be made to any part of memory (i.e. you can address memory location <code>$200</code> as a structure (or array of structures), without having to explicitly define storage for it).
 153
 154      <li>Constraints can be communicated to the linker on how contents of data segments should be mapped to RAM; see section 3.2.19, &ldquo;Controlling data mapping&rdquo;.
 155
 156      <li>PUBLIC modifier can be specified directly when defining a variable.
 157
 158      <li>Fixed a bug in code generation of exported string constants.
 159
 160    </ul>
 161
 162    <p><strong>Linker</strong>
 163
 164      <ul>
 165 <li>Uses the information generated from the assembler <code>--debug</code> switch to produce descriptive warning and error messages.
 166
 167      <li>Rewrote data segment mapping function to take zeropage and alignment constraints into account.
 168
 169      <li>Improved code relocation; as a result, the current PC ($) can be used freely in any expression, and the <code>origin</code> argument for the <code>pad</code> command works.
 170
 171      <li>Fixed a linker script parsing bug.
 172
 173    </ul>
 174
 175 <h3 class="heading">Version 1.3.5</h3>
 176
 177 <p><strong>Assembler</strong>
 178
 179      <ul>
 180
 181      <li>Added ability to declare storage for array of user-defined types, C-style (works for native types too).
 182
 183      <li>Added ability to specify the type of data that a label addresses.
 184
 185      <li>Fixed bug in code generation of storage of user-defined types.
 186
 187      <li>Fixed some error detection and parsing woes.
 188
 189      <li>Added <code>DEFINE</code> directive (same semantics as <code>EQU</code>, but potentially more compact).
 190
 191    </ul>
 192
 193    <p><strong>Linker</strong>
 194
 195      <ul>
 196 <li>Fixed a bad code relocation bug.
 197
 198      <li>Implemented bank operator (<code>^</code>).
 199
 200      <li><code>--verbose</code> switch now gives helpful info on what the linker is doing.
 201
 202    </ul>
 203
 204 <h3 class="heading">Version 1.3.0</h3>
 205
 206      <ul>
 207 <li>Added support for user-defined records (<code>RECORD</code> directive, <code>MASK</code> operator).
 208
 209      <li>Added <code>WHILE</code> directive.
 210
 211      <li>Implemented <code>ELIF</code> directive.
 212
 213      <li>Improved <code>--define</code> switch: A value can now be assigned to the identifier (i.e. <code>--define a=10</code>).
 214
 215      <li><code>SIZEOF</code> operator now works on variable identifiers too.
 216
 217      <li>Fixed bug that prevented single-character identifiers from working.
 218
 219      <li>Added <code>--no-warn</code> switch to suppress assembler warnings.
 220
 221      <li>Early support for <code>--verbose</code> switch.
 222
 223 </ul>
 224
 225 <h3 class="heading">Version 1.2.0</h3>
 226
 227      <ul>
 228 <li>Added support for forward/backward branches (<code>-</code>, <code>--</code>, <code>+</code>, <code>++</code>, and so on, up to eight levels (<code>++++++++</code>)).
 229
 230      <li>Fixed bug that caused the assembler to run out of file handles when including a large number of files.
 231
 232      <li>Fixed bug that caused <code>.db &lt;a, &gt;b</code> and other lines with <code>&lt; &gt;</code> to be parsed erroneously.
 233
 234 </ul>
 235
 236 <h3 class="heading">Version 1.1.0</h3>
 237
 238      <ul>
 239 <li>Full support for user-defined types: Structures, unions and enums.
 240
 241      <li>Better separation of symbol types. In the previous versions, <em>everything</em> was a label. The assembler now distinguishes properly between labels, procedures, variables, constants and user-defined types.
 242
 243      <li>Support for anonymous macros (<code>rept</code> directive).
 244
 245      <li>Crash-bug fixes (<code>if</code> directive, <code>incbin</code> directive).
 246
 247      <li>Preliminary support for <code>--define=</code><var>IDENT</var> assembler switch (can be used in <code>ifdef</code> and <code>ifndef</code> directives).
 248
 249      <li>Added <code>message</code> directive.
 250
 251      <li>Improved literal expression folding. <var>"hello " + 123</var> will now be folded to <var>"hello 123"</var>.
 252
 253      <li>Added assembler switch <code>--swap-parens</code>, which swaps the operators used for indirection from [ ] to ( ).
 254
 255      <li>Syntax of <code>extrn</code> directive changed slightly: Must now specify the symbol type.
 256
 257      <li>Relaxed syntax of <code>db</code>, <code>dsb</code> and similar directives. If no expression is given as argument, a single item is allocated.
 258
 259 </ul>
 260
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 262