pub const VM_INTERRUPT: &str = "vm.interrupt";Expand description
The reserved user op that stops the machine so the environment can act.
vm.interrupt(code, args...) -> value? retires everything before it,
runs nothing after it, and surfaces as a typed exit from the VM. The
environment supplies the op’s result, if it declares one, and resumes.
It is how an injected hook hands control to the host from inside a block,
whether that block is interpreted or compiled. See qcode_vm.