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//: Arithmetic primitives
:(before "End Primitive Recipe Declarations")
ADD,
:(before "End Primitive Recipe Numbers")
Recipe_number["add"] = ADD;
:(before "End Primitive Recipe Implementations")
case ADD: {
double result = 0;
for (index_t i = 0; i < ingredients.size(); ++i) {
assert(ingredients.at(i).size() == 1); // scalar
result += ingredients.at(i).at(0);
}
products.resize(1);
products.at(0).push_back(result);
break;
}
:(scenario add_literal)
recipe main [
1:number <- add 23:literal, 34:literal
]
+run: instruction main/0
+run: ingredient 0 is 23
+run: ingredient 1 is 34
+run: product 0 is 1
+mem: storing 57 in location 1
:(scenario add)
recipe main [
1:number <- copy 23:literal
2:number <- copy 34:literal
3:number <- add 1:number, 2:number
]
+run: instruction main/2
+run: ingredient 0 is 1
+mem: location 1 is 23
+run: ingredient 1 is 2
+mem: location 2 is 34
+run: product 0 is 3
+mem: storing 57 in location 3
:(scenario add_multiple)
recipe main [
1:number <- add 3:literal, 4:literal, 5:literal
]
+mem: storing 12 in location 1
:(before "End Primitive Recipe Declarations")
SUBTRACT,
:(before "End Primitive Recipe Numbers")
Recipe_number["subtract"] = SUBTRACT;
:(before "End Primitive Recipe Implementations")
case SUBTRACT: {
assert(ingredients.at(0).size() == 1); // scalar
double result = ingredients.at(0).at(0);
for (index_t i = 1; i < ingredients.size(); ++i) {
assert(ingredients.at(i).size() == 1); // scalar
result -= ingredients.at(i).at(0);
}
products.resize(1);
products.at(0).push_back(result);
break;
}
:(scenario subtract_literal)
recipe main [
1:number <- subtract 5:literal, 2:literal
]
+run: instruction main/0
+run: ingredient 0 is 5
+run: ingredient 1 is 2
+run: product 0 is 1
+mem: storing 3 in location 1
:(scenario subtract)
recipe main [
1:number <- copy 23:literal
2:number <- copy 34:literal
3:number <- subtract 1:number, 2:number
]
+run: instruction main/2
+run: ingredient 0 is 1
+mem: location 1 is 23
+run: ingredient 1 is 2
+mem: location 2 is 34
+run: product 0 is 3
+mem: storing -11 in location 3
:(scenario subtract_multiple)
recipe main [
1:number <- subtract 6:literal, 3:literal, 2:literal
]
+mem: storing 1 in location 1
:(before "End Primitive Recipe Declarations")
MULTIPLY,
:(before "End Primitive Recipe Numbers")
Recipe_number["multiply"] = MULTIPLY;
:(before "End Primitive Recipe Implementations")
case MULTIPLY: {
double result = 1;
for (index_t i = 0; i < ingredients.size(); ++i) {
assert(ingredients.at(i).size() == 1); // scalar
result *= ingredients.at(i).at(0);
}
products.resize(1);
products.at(0).push_back(result);
break;
}
:(scenario multiply_literal)
recipe main [
1:number <- multiply 2:literal, 3:literal
]
+run: instruction main/0
+run: ingredient 0 is 2
+run: ingredient 1 is 3
+run: product 0 is 1
+mem: storing 6 in location 1
:(scenario multiply)
recipe main [
1:number <- copy 4:literal
2:number <- copy 6:literal
3:number <- multiply 1:number, 2:number
]
+run: instruction main/2
+run: ingredient 0 is 1
+mem: location 1 is 4
+run: ingredient 1 is 2
+mem: location 2 is 6
+run: product 0 is 3
+mem: storing 24 in location 3
:(scenario multiply_multiple)
recipe main [
1:number <- multiply 2:literal, 3:literal, 4:literal
]
+mem: storing 24 in location 1
:(before "End Primitive Recipe Declarations")
DIVIDE,
:(before "End Primitive Recipe Numbers")
Recipe_number["divide"] = DIVIDE;
:(before "End Primitive Recipe Implementations")
case DIVIDE: {
assert(ingredients.at(0).size() == 1); // scalar
double result = ingredients.at(0).at(0);
for (index_t i = 1; i < ingredients.size(); ++i) {
assert(ingredients.at(i).size() == 1); // scalar
result /= ingredients.at(i).at(0);
}
products.resize(1);
products.at(0).push_back(result);
break;
}
:(scenario divide_literal)
recipe main [
1:number <- divide 8:literal, 2:literal
]
+run: instruction main/0
+run: ingredient 0 is 8
+run: ingredient 1 is 2
+run: product 0 is 1
+mem: storing 4 in location 1
:(scenario divide)
recipe main [
1:number <- copy 27:literal
2:number <- copy 3:literal
3:number <- divide 1:number, 2:number
]
+run: instruction main/2
+run: ingredient 0 is 1
+mem: location 1 is 27
+run: ingredient 1 is 2
+mem: location 2 is 3
+run: product 0 is 3
+mem: storing 9 in location 3
:(scenario divide_multiple)
recipe main [
1:number <- divide 12:literal, 3:literal, 2:literal
]
+mem: storing 2 in location 1
//: Integer division
:(before "End Primitive Recipe Declarations")
DIVIDE_WITH_REMAINDER,
:(before "End Primitive Recipe Numbers")
Recipe_number["divide-with-remainder"] = DIVIDE_WITH_REMAINDER;
:(before "End Primitive Recipe Implementations")
case DIVIDE_WITH_REMAINDER: {
long long int quotient = ingredients.at(0).at(0) / ingredients.at(1).at(0);
long long int remainder = static_cast<long long int>(ingredients.at(0).at(0)) % static_cast<long long int>(ingredients.at(1).at(0));
products.resize(2);
// very large integers will lose precision
products.at(0).push_back(quotient);
products.at(1).push_back(remainder);
break;
}
:(scenario divide_with_remainder_literal)
recipe main [
1:number, 2:number <- divide-with-remainder 9:literal, 2:literal
]
+run: instruction main/0
+run: ingredient 0 is 9
+run: ingredient 1 is 2
+run: product 0 is 1
+mem: storing 4 in location 1
+run: product 1 is 2
+mem: storing 1 in location 2
:(scenario divide_with_remainder)
recipe main [
1:number <- copy 27:literal
2:number <- copy 11:literal
3:number, 4:number <- divide-with-remainder 1:number, 2:number
]
+run: instruction main/2
+run: ingredient 0 is 1
+mem: location 1 is 27
+run: ingredient 1 is 2
+mem: location 2 is 11
+run: product 0 is 3
+mem: storing 2 in location 3
+run: product 1 is 4
+mem: storing 5 in location 4
:(scenario divide_with_decimal_point)
recipe main [
# todo: literal floats?
1:number <- divide 5:literal, 2:literal
]
+mem: storing 2.5 in location 1
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