Merge pull request #2 from simpleledgerinc/master

Add alt stack

debug.go

@@ -291,6 +291,24 @@ scriptLoop:
 
 	tm.Println(box.String())
 
+	altstack := vm.GetAltStack()
+	if len(altstack) > 0 && !done && !fail {
+		tm.Println(tm.Background(tm.Color(tm.Bold("Alt Stack"), tm.WHITE), tm.MAGENTA))
+		var box *tm.Box
+		if done && !fail {
+			err = vm.CheckErrorCondition(true)
+			if err != nil {
+				done = false
+				fail = true
+			}
+		}
+		box = tm.NewBox(100|tm.PCT, len(vm.GetAltStack())+2, 0)
+		for i := len(altstack) - 1; i >= 0; i-- {
+			fmt.Fprintf(box, "%s\n", hex.EncodeToString(altstack[i]))
+		}
+		tm.Println(box.String())
+	}
+
 	tm.Printf("%s%s%s%s%s%s\n", "F3", tm.Background(tm.Color(tm.Bold("Step Back"), tm.WHITE), tm.CYAN), "F4", tm.Background(tm.Color(tm.Bold("Step Forward"), tm.WHITE), tm.CYAN), "ESC", tm.Background(tm.Color(tm.Bold("Quit"), tm.WHITE), tm.CYAN))
 	tm.Flush()