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<span class="Comment">//: Phase 3: Start running a loaded and transformed recipe.</span>
<span class="Comment">//:</span>
<span class="Comment">//: So far we've seen recipes as lists of instructions, and instructions point</span>
<span class="Comment">//: at other recipes. To kick things off mu needs to know how to run certain</span>
<span class="Comment">//: 'primitive' recipes. That will then give the ability to run recipes</span>
<span class="Comment">//: containing these primitives.</span>
<span class="Comment">//:</span>
<span class="Comment">//: This layer defines a skeleton with just two primitive recipes: IDLE which</span>
<span class="Comment">//: does nothing, and COPY, which can copy numbers from one memory location to</span>
<span class="Comment">//: another. Later layers will add more primitives.</span>
<span class="Delimiter">:(scenario copy_literal)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Special"> <- </span>copy <span class="Constant">23</span>:literal
]
<span class="traceContains">+run: instruction main/0</span>
<span class="traceContains">+run: ingredient 0 is 23</span>
<span class="traceContains">+mem: storing 23 in location 1</span>
<span class="Delimiter">:(scenario copy)</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">1</span>:number
]
<span class="traceContains">+run: instruction main/1</span>
<span class="traceContains">+run: ingredient 0 is 1</span>
<span class="traceContains">+mem: location 1 is 23</span>
<span class="traceContains">+mem: storing 23 in location 2</span>
<span class="Delimiter">:(scenario copy_multiple)</span>
recipe main [
<span class="Constant">1</span>:number<span class="Delimiter">,</span> <span class="Constant">2</span>:number<span class="Special"> <- </span>copy <span class="Constant">23</span>:literal<span class="Delimiter">,</span> <span class="Constant">24</span>:literal
]
<span class="traceContains">+run: ingredient 0 is 23</span>
<span class="traceContains">+run: ingredient 1 is 24</span>
<span class="traceContains">+mem: storing 23 in location 1</span>
<span class="traceContains">+mem: storing 24 in location 2</span>
<span class="Delimiter">:(before "End Types")</span>
<span class="Comment">// Book-keeping while running a recipe.</span>
<span class="Comment">//: Later layers will change this.</span>
struct routine <span class="Delimiter">{</span>
recipe_number running_recipe<span class="Delimiter">;</span>
index_t running_step_index<span class="Delimiter">;</span>
routine<span class="Delimiter">(</span>recipe_number r<span class="Delimiter">)</span> :running_recipe<span class="Delimiter">(</span>r<span class="Delimiter">),</span> running_step_index<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span>
bool completed<span class="Delimiter">()</span> const<span class="Delimiter">;</span>
<span class="Delimiter">};</span>
<span class="Delimiter">:(before "End Globals")</span>
routine* Current_routine = <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span class="Delimiter">:(code)</span>
void run<span class="Delimiter">(</span>recipe_number r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
routine rr<span class="Delimiter">(</span>r<span class="Delimiter">);</span>
Current_routine = &rr<span class="Delimiter">;</span>
run_current_routine<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
void run_current_routine<span class="Delimiter">()</span>
<span class="Delimiter">{</span> <span class="Comment">// curly on a separate line, because later layers will modify header</span>
while <span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>completed<span class="Delimiter">())</span> <span class="Comment">// later layers will modify condition</span>
<span class="Delimiter">{</span>
<span class="Comment">// Running One Instruction.</span>
if <span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>is_label<span class="Delimiter">)</span> <span class="Delimiter">{</span> ++current_step_index<span class="Delimiter">();</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Delimiter">}</span>
trace<span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"instruction "</span> << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">'/'</span> << current_step_index<span class="Delimiter">();</span>
trace<span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << current_instruction<span class="Delimiter">().</span>to_string<span class="Delimiter">();</span>
assert<span class="Delimiter">(</span>Memory[<span class="Constant">0</span>] == <span class="Constant">0</span><span class="Delimiter">);</span>
<span class="Comment">// Read all ingredients from memory.</span>
<span class="Comment">// Each ingredient loads a vector of values rather than a single value; mu</span>
<span class="Comment">// permits operating on reagents spanning multiple locations.</span>
vector<vector<double> > ingredients<span class="Delimiter">;</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i < current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"ingredient "</span> << i << <span class="Constant">" is "</span> << current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">;</span>
ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>read_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)));</span>
<span class="Delimiter">}</span>
<span class="Comment">// Instructions below will write to 'products' or to 'instruction_counter'.</span>
vector<vector<double> > products<span class="Delimiter">;</span>
index_t instruction_counter = current_step_index<span class="Delimiter">();</span>
<span class="CommentedCode">//? cout << "AAA: " << current_instruction().to_string() << '\n'; //? 1</span>
switch <span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>operation<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// Primitive Recipe Implementations</span>
case COPY: <span class="Delimiter">{</span>
copy<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> ingredients<span class="Delimiter">.</span>end<span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>products<span class="Delimiter">,</span> products<span class="Delimiter">.</span>begin<span class="Delimiter">()));</span>
<span class="Identifier">break</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">// End Primitive Recipe Implementations</span>
default: <span class="Delimiter">{</span>
cout << <span class="Constant">"not a primitive op: "</span> << current_instruction<span class="Delimiter">().</span>operation << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="CommentedCode">//? cout << "BBB: " << current_instruction().to_string() << '\n'; //? 1</span>
if <span class="Delimiter">(</span>products<span class="Delimiter">.</span>size<span class="Delimiter">()</span> < current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>size<span class="Delimiter">())</span>
raise << <span class="Constant">"failed to write to all products! "</span> << current_instruction<span class="Delimiter">().</span>to_string<span class="Delimiter">();</span>
<span class="CommentedCode">//? cout << "CCC: " << current_instruction().to_string() << '\n'; //? 1</span>
for <span class="Delimiter">(</span>index_t i = <span class="Constant">0</span><span class="Delimiter">;</span> i < current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"product "</span> << i << <span class="Constant">" is "</span> << current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">;</span>
write_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
<span class="Delimiter">}</span>
<span class="CommentedCode">//? cout << "DDD: " << current_instruction().to_string() << '\n'; //? 1</span>
current_step_index<span class="Delimiter">()</span> = instruction_counter+<span class="Constant">1</span><span class="Delimiter">;</span>
<span class="CommentedCode">//? cerr << "screen: " << Memory[SCREEN] << '\n'; //? 1</span>
<span class="Delimiter">}</span>
stop_running_current_routine:<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Comment">//: Some helpers.</span>
<span class="Comment">//: We'll need to override these later as we change the definition of routine.</span>
<span class="Comment">//: Important that they return referrences into the routine.</span>
inline index_t& current_step_index<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> Current_routine<span class="Delimiter">-></span>running_step_index<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
inline const string& current_recipe_name<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> Recipe[Current_routine<span class="Delimiter">-></span>running_recipe]<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
inline const instruction& current_instruction<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> Recipe[Current_routine<span class="Delimiter">-></span>running_recipe]<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>running_step_index<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
inline bool routine::completed<span class="Delimiter">()</span> const <span class="Delimiter">{</span>
<span class="Identifier">return</span> running_step_index >= Recipe[running_recipe]<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>size<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Commandline Parsing")</span>
<span class="Comment">// Loading Commandline Files</span>
if <span class="Delimiter">(</span>argc > <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
for <span class="Delimiter">(</span>int i = <span class="Constant">1</span><span class="Delimiter">;</span> i < argc<span class="Delimiter">;</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
load_permanently<span class="Delimiter">(</span>argv[i]<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before "End Main")</span>
if <span class="Delimiter">(</span>!Run_tests<span class="Delimiter">)</span> <span class="Delimiter">{</span>
setup<span class="Delimiter">();</span>
<span class="CommentedCode">//? Trace_file = "interactive"; //? 1</span>
START_TRACING_UNTIL_END_OF_SCOPE<span class="Delimiter">;</span>
<span class="CommentedCode">//? Trace_stream->dump_layer = "all"; //? 2</span>
transform_all<span class="Delimiter">();</span>
recipe_number r = Recipe_number[string<span class="Delimiter">(</span><span class="Constant">"main"</span><span class="Delimiter">)</span>]<span class="Delimiter">;</span>
<span class="CommentedCode">//? Trace_stream->dump_layer = "all"; //? 1</span>
if <span class="Delimiter">(</span>r<span class="Delimiter">)</span> run<span class="Delimiter">(</span>r<span class="Delimiter">);</span>
<span class="CommentedCode">//? dump_memory(); //? 1</span>
teardown<span class="Delimiter">();</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
void load_permanently<span class="Delimiter">(</span>string filename<span class="Delimiter">)</span> <span class="Delimiter">{</span>
ifstream fin<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span>
fin<span class="Delimiter">.</span>peek<span class="Delimiter">();</span>
<span class="CommentedCode">//? cerr << "AAA: " << filename << ' ' << static_cast<bool>(fin) << ' ' << fin.fail() << '\n'; //? 1</span>
<span class="CommentedCode">//? return; //? 1</span>
if <span class="Delimiter">(</span>!fin<span class="Delimiter">)</span> <span class="Delimiter">{</span>
raise << <span class="Constant">"no such file "</span> << filename << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
<span class="Identifier">return</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
fin >> std::noskipws<span class="Delimiter">;</span>
load<span class="Delimiter">(</span>fin<span class="Delimiter">);</span>
transform_all<span class="Delimiter">();</span>
fin<span class="Delimiter">.</span>close<span class="Delimiter">();</span>
<span class="Comment">// freeze everything so it doesn't get cleared by tests</span>
recently_added_recipes<span class="Delimiter">.</span>clear<span class="Delimiter">();</span>
<span class="Comment">// End load_permanently.</span>
<span class="Delimiter">}</span>
<span class="SalientComment">//:: On startup, load everything in core.mu</span>
<span class="Delimiter">:(before "End Load Recipes")</span>
load_permanently<span class="Delimiter">(</span><span class="Constant">"core.mu"</span><span class="Delimiter">);</span>
<span class="Delimiter">:(code)</span>
<span class="Comment">// helper for tests</span>
void run<span class="Delimiter">(</span>string form<span class="Delimiter">)</span> <span class="Delimiter">{</span>
vector<recipe_number> tmp = load<span class="Delimiter">(</span>form<span class="Delimiter">);</span>
if <span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
transform_all<span class="Delimiter">();</span>
run<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>front<span class="Delimiter">());</span>
<span class="Delimiter">}</span>
<span class="SalientComment">//:: Reading from memory, writing to memory.</span>
vector<double> read_memory<span class="Delimiter">(</span>reagent x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//? cout << "read_memory: " << x.to_string() << '\n'; //? 2</span>
vector<double> result<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>isa_literal<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Delimiter">{</span>
result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>x<span class="Delimiter">.</span>value<span class="Delimiter">);</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
index_t base = x<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
size_t size = size_of<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
for <span class="Delimiter">(</span>index_t offset = <span class="Constant">0</span><span class="Delimiter">;</span> offset < size<span class="Delimiter">;</span> ++offset<span class="Delimiter">)</span> <span class="Delimiter">{</span>
double val = Memory[base+offset]<span class="Delimiter">;</span>
trace<span class="Delimiter">(</span><span class="Constant">"mem"</span><span class="Delimiter">)</span> << <span class="Constant">"location "</span> << base+offset << <span class="Constant">" is "</span> << val<span class="Delimiter">;</span>
result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>val<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
void write_memory<span class="Delimiter">(</span>reagent x<span class="Delimiter">,</span> vector<double> data<span class="Delimiter">)</span> <span class="Delimiter">{</span>
if <span class="Delimiter">(</span>is_dummy<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
index_t base = x<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
if <span class="Delimiter">(</span>size_of<span class="Delimiter">(</span>x<span class="Delimiter">)</span> != data<span class="Delimiter">.</span>size<span class="Delimiter">())</span>
raise << <span class="Constant">"size mismatch in storing to "</span> << x<span class="Delimiter">.</span>to_string<span class="Delimiter">()</span> << <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
for <span class="Delimiter">(</span>index_t offset = <span class="Constant">0</span><span class="Delimiter">;</span> offset < data<span class="Delimiter">.</span>size<span class="Delimiter">();</span> ++offset<span class="Delimiter">)</span> <span class="Delimiter">{</span>
trace<span class="Delimiter">(</span><span class="Constant">"mem"</span><span class="Delimiter">)</span> << <span class="Constant">"storing "</span> << data<span class="Delimiter">.</span>at<span class="Delimiter">(</span>offset<span class="Delimiter">)</span> << <span class="Constant">" in location "</span> << base+offset<span class="Delimiter">;</span>
Memory[base+offset] = data<span class="Delimiter">.</span>at<span class="Delimiter">(</span>offset<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(code)</span>
size_t size_of<span class="Delimiter">(</span>const reagent& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> size_of<span class="Delimiter">(</span>r<span class="Delimiter">.</span>types<span class="Delimiter">);</span>
<span class="Delimiter">}</span>
size_t size_of<span class="Delimiter">(</span>const vector<type_number>& types<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Comment">// End size_of(types) Cases</span>
<span class="Identifier">return</span> <span class="Constant">1</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
bool is_dummy<span class="Delimiter">(</span>const reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> x<span class="Delimiter">.</span>name == <span class="Constant">"_"</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
bool isa_literal<span class="Delimiter">(</span>const reagent& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="Identifier">return</span> r<span class="Delimiter">.</span>types<span class="Delimiter">.</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span> && r<span class="Delimiter">.</span>types<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(scenario run_label)</span>
recipe main [
+foo
<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">1</span>:number
]
<span class="traceContains">+run: instruction main/1</span>
<span class="traceContains">+run: instruction main/2</span>
<span class="traceAbsent">-run: instruction main/0</span>
<span class="Delimiter">:(scenario run_dummy)</span>
recipe main [
_<span class="Special"> <- </span>copy <span class="Constant">0</span>:literal
]
<span class="traceContains">+run: instruction main/0</span>
</pre>
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