More working code generation

grow/defs/mul_five.yaml

@@ -0,0 +1,20 @@
+global_memory_size: 1
+function_memory_size: 1
+instruction_limit: 2
+samples:
+- global_memory_inputs:
+    0: 0
+  global_memory_outputs:
+    0: 0
+- global_memory_inputs:
+    0: 1
+  global_memory_outputs:
+    0: 5
+- global_memory_inputs:
+    0: 2
+  global_memory_outputs:
+    0: 10
+- global_memory_inputs:
+    0: 100
+  global_memory_outputs:
+    0: 500

grow/defs/mul_four.yaml

@@ -0,0 +1,20 @@
+global_memory_size: 1
+function_memory_size: 1
+instruction_limit: 2
+samples:
+- global_memory_inputs:
+    0: 0
+  global_memory_outputs:
+    0: 0
+- global_memory_inputs:
+    0: 1
+  global_memory_outputs:
+    0: 4
+- global_memory_inputs:
+    0: 2
+  global_memory_outputs:
+    0: 8
+- global_memory_inputs:
+    0: 100
+  global_memory_outputs:
+    0: 400

grow/defs/mul_two.yaml

@@ -0,0 +1,20 @@
+global_memory_size: 1
+function_memory_size: 1
+instruction_limit: 2
+samples:
+- global_memory_inputs:
+    0: 0
+  global_memory_outputs:
+    0: 0
+- global_memory_inputs:
+    0: 1
+  global_memory_outputs:
+    0: 2
+- global_memory_inputs:
+    0: 2
+  global_memory_outputs:
+    0: 4
+- global_memory_inputs:
+    0: 100
+  global_memory_outputs:
+    0: 200

grow/grow.go

@@ -12,7 +12,8 @@ func (def *Definition) Grow() {
 	log.Print("Starting grow run...")
 
 	// TODO: Score should be number of output criteria, not number of Samples
-	for high_score < len(def.Samples) {
+	progs := 0
+	for ; high_score < len(def.Samples); progs++ {
 		prog := gen.RandProgram(def.GlobalMemorySize, def.FunctionMemorySize, def.InstructionLimit)
 
 		score, err := def.Score(prog)
@@ -31,6 +32,8 @@ func (def *Definition) Grow() {
 			log.Printf("New high score %d / %d:\n%s", high_score, len(def.Samples), src)
 		}
 	}
+
+	log.Printf("%d programs tested", progs)
 }
 
 func (def *Definition) Score(prog *vm.Program) (int, error) {

grow/main.go

@@ -2,7 +2,9 @@ package main
 
 import "flag"
 import "log"
+import "math/rand"
 import "os"
+import "time"
 
 func main() {
 	defPath := flag.String("def-path", "", "path to definition YAML file")
@@ -12,6 +14,8 @@ func main() {
 		log.Fatal("Please specify --def-path")
 	}
 
+	rand.Seed(time.Now().UnixNano())
+
 	defFile, err := os.Open(*defPath)
 	if err != nil {
 		log.Fatal(err)