Dynamically-Scoped Variable Words
+Dynamically-scoped variables enable the definition of variables with a scope within a called execution token or within all execution inside a given thread except for within scopes in which they are redefined. Note that values of dynamically-scoped variables are specific to individual tasks, and do not exist for the main task on bootup or within new tasks on spawning.
+dynamic
+The dynamic module contains the following words:
dyn
+( “name” – )
+This defines a dynamically-scoped single-cell variable with the specified name. Note that this does not give it any value. If this is executed during compilation to flash the defined variable will persist across reboots.
+2dyn
+( “name” – )
+This defines a dynamically-scoped double-cell variable with the specified name. Note that this does not give it any value. If this is executed during compilation to flash the defined variable will persist across reboots.
+dyn!
+( xt x|xd variable – )
+This sets a dynamically-scoped variable variable to x or xd depending on whether it is single-cell or double-cell within the scope defined by the execution token xt within the current task. This temporarily uses space in the current task’s RAM dictionary to store the defined value of variable.
+dyn-no-scope!
+( x|xd variable – )
+This sets a dynamically-scoped variable variable to xt or xd depending on whether it is single-cell or double-cell within the scope defined by all execution after this point within the current task until overridden by another execution of dyn! or dyn-no-scope!. Note that this permanently uses space in the current task’s RAM dictionary to store the defined value of variable; do not use this within implicit compilation.
dyn@
+( variable – x|xd )
+This gets the current value of a dynamically-scoped variable variable within the current task as x or xd dependingon whether it is single-cell or double-cell.
+