mirror of
https://github.com/Zeal-Operating-System/ZealOS.git
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9aa9e44ea6
(Only 2-arg instructions implemented. CosmiC assembler needs expanding to allow 3+ arg instructions.) (Only <= 4 byte instructions implemented. CosmiC assembler needs expanding to allow instructions larger than 4 bytes.) (Bugs: Unassembler incorrectly reports 0x66 prefixed opcodes, non-128-bit instruction arguments report as U128. CosmiC does not yet have support for U128.) Fix Std Font characters. Add links to ZealOS-specific apps in Personal Menu. Remove all files in /Downloads.
51 lines
3.6 KiB
HTML
Executable file
51 lines
3.6 KiB
HTML
Executable file
<!DOCTYPE HTML>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html;charset=US-ASCII">
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<meta name="generator" content="ZealOS V1.02">
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<style type="text/css">
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body {background-color:#1f1f1f;}
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.cF0{color:#e3e3e3;background-color:#1f1f1f;}
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.cF1{color:#4f84a6;background-color:#1f1f1f;}
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.cF2{color:#73a255;background-color:#1f1f1f;}
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.cF3{color:#297582;background-color:#1f1f1f;}
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.cF4{color:#b34f4b;background-color:#1f1f1f;}
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.cF5{color:#8a52c3;background-color:#1f1f1f;}
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.cF6{color:#b7822f;background-color:#1f1f1f;}
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.cF7{color:#444444;background-color:#1f1f1f;}
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.cF8{color:#6d6d6d;background-color:#1f1f1f;}
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.cF9{color:#94bfde;background-color:#1f1f1f;}
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.cFA{color:#a1ce97;background-color:#1f1f1f;}
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.cFB{color:#6db4be;background-color:#1f1f1f;}
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.cFC{color:#e88e88;background-color:#1f1f1f;}
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.cFD{color:#ca94e8;background-color:#1f1f1f;}
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.cFE{color:#d4b475;background-color:#1f1f1f;}
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.cFF{color:#1f1f1f;background-color:#1f1f1f;}
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</style>
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</head>
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<body>
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<pre style="font-family:monospace;font-size:12pt">
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<a name="l1"></a><span class=cF5> PreProcessor</span><span class=cF0>
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<a name="l2"></a>
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<a name="l3"></a>There is no separate preprocessor pass. The parser front-end calls </span><a href="https://zeal-operating-system.github.io/ZealOS/Compiler/Lex.CC.html#l529"><span class=cF4>Lex</span></a><span class=cF0>() which has the preprocessor built-in. The compiler
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<a name="l4"></a>looks ahead a token, most of the time, so you might throw an extra semicolon after a directive if it's not taking affect right
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<a name="l5"></a>away.
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<a name="l6"></a>
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<a name="l7"></a>Put an extra semicolon </span><span class=cF2>#exe {Cd("DirName");;}</span><span class=cF0> in case a </span><span class=cF2>#include</span><span class=cF0> follows.
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<a name="l8"></a>
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<a name="l9"></a></span><span class=cF2>#include ""</span><span class=cF0> There is no angle bracket <> form of this directive.
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<a name="l10"></a></span><span class=cF2>#exe {}</span><span class=cF0> Will execute code at compile-time and can be used to insert code into the stream being compiled using </span><span class=cF4>
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<a name="l11"></a></span><a href="https://zeal-operating-system.github.io/ZealOS/Compiler/CMisc.CC.html#l71"><span class=cF4>StreamPrint</span></a><span class=cF0>().
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<a name="l12"></a></span><span class=cF2>#define</span><span class=cF0> Define string const
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<a name="l13"></a></span><span class=cF2>#assert</span><span class=cF0> Print a warning during compilation if an expression is not true.
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<a name="l14"></a></span><span class=cF2>#if</span><span class=cF0> Include code if an expresion is true.
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<a name="l15"></a></span><span class=cF2>#else
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<a name="l16"></a>#endif
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<a name="l17"></a>#ifdef,#ifndef </span><span class=cF0>Include code if a sym is defined.
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<a name="l18"></a></span><span class=cF2>#ifaot,#ifjit </span><span class=cF0>Include code if in </span><span class=cF2>AOT</span><span class=cF0> compiler mode.
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<a name="l19"></a></span><span class=cF2>defined()</span><span class=cF0> Is a function that can be used in expressions.
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<a name="l20"></a></span><span class=cF2>#help_index</span><span class=cF0>, </span><span class=cF2>#help_file</span><span class=cF0> See </span><a href="https://zeal-operating-system.github.io/ZealOS/Doc/HelpSystem.DD.html#l1"><span class=cF4>Help System</span></a><span class=cF0>.
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<a name="l21"></a>
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<a name="l22"></a>See </span><a href="https://zeal-operating-system.github.io/ZealOS/Compiler/Lex.CC.html#l855"><span class=cF4>PreProcessor</span></a><span class=cF0>.
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</span></pre></body>
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</html>
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