|
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>~/Desktop/s/mu/021arithmetic.cc</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v1">
<meta name="syntax" content="cpp">
<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #d0d0d0; background-color: #000000; }
body { font-family: monospace; color: #d0d0d0; background-color: #000000; }
* { font-size: 1em; }
.Constant { color: #008080; }
.Comment { color: #8080ff; }
.Delimiter { color: #c000c0; }
.Special { color: #ff6060; }
.Identifier { color: #008080; }
.traceContains { color: #008000; }
-->
</style>
<script type='text/javascript'>
<!--
-->
</script>
</head>
<body>
<pre id='vimCodeElement'>
<span class="Comment">//: Arithmetic primitives</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
ADD<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"add"</span>] = ADD<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case ADD: <span class="Delimiter">{</span>
double result = <span class="Constant">0</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i < ingredients<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span><span class="Delimiter">);</span> <span class="Comment">// scalar</span>
result += ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario add_literal)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>add <span class="Constant">23</span>:literal<span class="Delimiter">,</span> <span class="Constant">34</span>:literal
]
<span class="traceContains">+run: instruction main/0</span>
<span class="traceContains">+run: ingredient 0 is 23</span>
<span class="traceContains">+run: ingredient 1 is 34</span>
<span class="traceContains">+run: product 0 is 1</span>
<span class="traceContains">+mem: storing 57 in location 1</span>
<span class="Delimiter">:(scenario add)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">23</span>:literal
<span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">34</span>:literal
<span class="Constant">3</span>:number<span class="Special"> <- </span>add <span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number
]
<span class="traceContains">+run: instruction main/2</span>
<span class="traceContains">+run: ingredient 0 is 1</span>
<span class="traceContains">+mem: location 1 is 23</span>
<span class="traceContains">+run: ingredient 1 is 2</span>
<span class="traceContains">+mem: location 2 is 34</span>
<span class="traceContains">+run: product 0 is 3</span>
<span class="traceContains">+mem: storing 57 in location 3</span>
<span class="Delimiter">:(scenario add_multiple)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>add <span class="Constant">3</span>:literal<span class="Delimiter">,</span> <span class="Constant">4</span>:literal<span class="Delimiter">,</span> <span class="Constant">5</span>:literal
]
<span class="traceContains">+mem: storing 12 in location 1</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
SUBTRACT<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"subtract"</span>] = SUBTRACT<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case SUBTRACT: <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span><span class="Delimiter">);</span> <span class="Comment">// scalar</span>
double result = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">1</span><span class="Delimiter">;</span> i < ingredients<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span><span class="Delimiter">);</span> <span class="Comment">// scalar</span>
result -= ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario subtract_literal)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>subtract <span class="Constant">5</span>:literal<span class="Delimiter">,</span> <span class="Constant">2</span>:literal
]
<span class="traceContains">+run: instruction main/0</span>
<span class="traceContains">+run: ingredient 0 is 5</span>
<span class="traceContains">+run: ingredient 1 is 2</span>
<span class="traceContains">+run: product 0 is 1</span>
<span class="traceContains">+mem: storing 3 in location 1</span>
<span class="Delimiter">:(scenario subtract)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">23</span>:literal
<span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">34</span>:literal
<span class="Constant">3</span>:number<span class="Special"> <- </span>subtract <span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number
]
<span class="traceContains">+run: instruction main/2</span>
<span class="traceContains">+run: ingredient 0 is 1</span>
<span class="traceContains">+mem: location 1 is 23</span>
<span class="traceContains">+run: ingredient 1 is 2</span>
<span class="traceContains">+mem: location 2 is 34</span>
<span class="traceContains">+run: product 0 is 3</span>
<span class="traceContains">+mem: storing -11 in location 3</span>
<span class="Delimiter">:(scenario subtract_multiple)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>subtract <span class="Constant">6</span>:literal<span class="Delimiter">,</span> <span class="Constant">3</span>:literal<span class="Delimiter">,</span> <span class="Constant">2</span>:literal
]
<span class="traceContains">+mem: storing 1 in location 1</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
MULTIPLY<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"multiply"</span>] = MULTIPLY<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case MULTIPLY: <span class="Delimiter">{</span>
double result = <span class="Constant">1</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i < ingredients<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span><span class="Delimiter">);</span> <span class="Comment">// scalar</span>
result *= ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario multiply_literal)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>multiply <span class="Constant">2</span>:literal<span class="Delimiter">,</span> <span class="Constant">3</span>:literal
]
<span class="traceContains">+run: instruction main/0</span>
<span class="traceContains">+run: ingredient 0 is 2</span>
<span class="traceContains">+run: ingredient 1 is 3</span>
<span class="traceContains">+run: product 0 is 1</span>
<span class="traceContains">+mem: storing 6 in location 1</span>
<span class="Delimiter">:(scenario multiply)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">4</span>:literal
<span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">6</span>:literal
<span class="Constant">3</span>:number<span class="Special"> <- </span>multiply <span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number
]
<span class="traceContains">+run: instruction main/2</span>
<span class="traceContains">+run: ingredient 0 is 1</span>
<span class="traceContains">+mem: location 1 is 4</span>
<span class="traceContains">+run: ingredient 1 is 2</span>
<span class="traceContains">+mem: location 2 is 6</span>
<span class="traceContains">+run: product 0 is 3</span>
<span class="traceContains">+mem: storing 24 in location 3</span>
<span class="Delimiter">:(scenario multiply_multiple)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>multiply <span class="Constant">2</span>:literal<span class="Delimiter">,</span> <span class="Constant">3</span>:literal<span class="Delimiter">,</span> <span class="Constant">4</span>:literal
]
<span class="traceContains">+mem: storing 24 in location 1</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
DIVIDE<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"divide"</span>] = DIVIDE<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case DIVIDE: <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span><span class="Delimiter">);</span> <span class="Comment">// scalar</span>
double result = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">1</span><span class="Delimiter">;</span> i < ingredients<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
assert<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span><span class="Delimiter">);</span> <span class="Comment">// scalar</span>
result /= ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Delimiter">}</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>result<span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario divide_literal)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>divide <span class="Constant">8</span>:literal<span class="Delimiter">,</span> <span class="Constant">2</span>:literal
]
<span class="traceContains">+run: instruction main/0</span>
<span class="traceContains">+run: ingredient 0 is 8</span>
<span class="traceContains">+run: ingredient 1 is 2</span>
<span class="traceContains">+run: product 0 is 1</span>
<span class="traceContains">+mem: storing 4 in location 1</span>
<span class="Delimiter">:(scenario divide)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">27</span>:literal
<span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">3</span>:literal
<span class="Constant">3</span>:number<span class="Special"> <- </span>divide <span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number
]
<span class="traceContains">+run: instruction main/2</span>
<span class="traceContains">+run: ingredient 0 is 1</span>
<span class="traceContains">+mem: location 1 is 27</span>
<span class="traceContains">+run: ingredient 1 is 2</span>
<span class="traceContains">+mem: location 2 is 3</span>
<span class="traceContains">+run: product 0 is 3</span>
<span class="traceContains">+mem: storing 9 in location 3</span>
<span class="Delimiter">:(scenario divide_multiple)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>divide <span class="Constant">12</span>:literal<span class="Delimiter">,</span> <span class="Constant">3</span>:literal<span class="Delimiter">,</span> <span class="Constant">2</span>:literal
]
<span class="traceContains">+mem: storing 2 in location 1</span>
<span class="Comment">//: Integer division</span>
<span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
DIVIDE_WITH_REMAINDER<span class="Delimiter">,</span>
<span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
Recipe_number[<span class="Constant">"divide-with-remainder"</span>] = DIVIDE_WITH_REMAINDER<span class="Delimiter">;</span>
<span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
case DIVIDE_WITH_REMAINDER: <span class="Delimiter">{</span>
long long int quotient = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> / ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
long long int remainder = static_cast<long long int><span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> % static_cast<long long int><span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
<span class="Comment">// very large integers will lose precision</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>quotient<span class="Delimiter">);</span>
products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>remainder<span class="Delimiter">);</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario divide_with_remainder_literal)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number<span class="Special"> <- </span>divide-with-remainder <span class="Constant">9</span>:literal<span class="Delimiter">,</span> <span class="Constant">2</span>:literal
]
<span class="traceContains">+run: instruction main/0</span>
<span class="traceContains">+run: ingredient 0 is 9</span>
<span class="traceContains">+run: ingredient 1 is 2</span>
<span class="traceContains">+run: product 0 is 1</span>
<span class="traceContains">+mem: storing 4 in location 1</span>
<span class="traceContains">+run: product 1 is 2</span>
<span class="traceContains">+mem: storing 1 in location 2</span>
<span class="Delimiter">:(scenario divide_with_remainder)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">27</span>:literal
<span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">11</span>:literal
<span class="Constant">3</span>:number<span class="Delimiter">,</span> <span class="Constant">4</span>:number<span class="Special"> <- </span>divide-with-remainder <span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number
]
<span class="traceContains">+run: instruction main/2</span>
<span class="traceContains">+run: ingredient 0 is 1</span>
<span class="traceContains">+mem: location 1 is 27</span>
<span class="traceContains">+run: ingredient 1 is 2</span>
<span class="traceContains">+mem: location 2 is 11</span>
<span class="traceContains">+run: product 0 is 3</span>
<span class="traceContains">+mem: storing 2 in location 3</span>
<span class="traceContains">+run: product 1 is 4</span>
<span class="traceContains">+mem: storing 5 in location 4</span>
<span class="Delimiter">:(scenario divide_with_decimal_point)</span>
recipe main [
<span class="Comment"># todo: literal floats?</span>
<span class="Constant">1</span>:number<span class="Special"> <- </span>divide <span class="Constant">5</span>:literal<span class="Delimiter">,</span> <span class="Constant">2</span>:literal
]
<span class="traceContains">+mem: storing 2.5 in location 1</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->
|