instruction code
Head-Pop
The instruction code 'Head-Pop' is an instruction code of the transsmt instruction set that pops a position of the ?B? stack and moves the instruction pointer ?IP? to that position. This instruction code can be modified by one or two 'Nop' instruction codes, which specify which stacks are compared. The first 'Nop' instruction code specifies which head (read-head, write-head, flow-head, or instruction pointer) is used, and the second 'Nop' instruction code specifies from which stack the position is popped.