instruction code If-Greater The instruction code 'If-Greater' is an instruction code of the transsmt instruction set that compares the value on the top of the ?A? stack to the value on the top of the ?B? stack. If the value of the ?A? stack is greater that the value of the ?B? stack, the next instruction code (after a modifying Nop' instruction code, if one is present) is executed, otherwise it will be skipped. This instruction code can be modified by one or two 'Nop' instruction codes, which specify which stacks are compared.