delericho
Legend
Per the strict letter of the RAW, I believe DogBackward is right about this - the orc has completed his move action and moved on to his standard action which triggers the Readied action. Because of this, and because actions are considered atomic, he can't "go back" and tack a bit more on to his move - he's finished that action.
On the other hand, the RAW doesn't spell out every possible circumstance. For example, it's generally accepted that it's valid to say "if an opponent comes into reach, I'll attack him" - and have the readied action take place as soon as the opponent enters that first threatened square.
However, as noted above, actions are considered atomic, which means that, by the strict letter of the RAW, the readied action should trigger before the opponent moves - with the absurd consequence that the readied attack fails because the target is not within reach despite the action being specifically readied for that exact condition.
This also means that if the orc doesn't "move then attack" but rather charges, then the readied attack fails (out of reach), the orc covers the full distance (including any five foot step) and gets his attack - because "charge" is an atomic full-round action that cannot be interrupted.
Basically, the Ready action can throw up some absurd situations when the strict letter of RAW is used. The DM should therefore interpret the rules to give the "best fit" of how things would work out. After all, that sort of odd case is exactly why we have DMs in the first place.
On the other hand, the RAW doesn't spell out every possible circumstance. For example, it's generally accepted that it's valid to say "if an opponent comes into reach, I'll attack him" - and have the readied action take place as soon as the opponent enters that first threatened square.
However, as noted above, actions are considered atomic, which means that, by the strict letter of the RAW, the readied action should trigger before the opponent moves - with the absurd consequence that the readied attack fails because the target is not within reach despite the action being specifically readied for that exact condition.
This also means that if the orc doesn't "move then attack" but rather charges, then the readied attack fails (out of reach), the orc covers the full distance (including any five foot step) and gets his attack - because "charge" is an atomic full-round action that cannot be interrupted.
Basically, the Ready action can throw up some absurd situations when the strict letter of RAW is used. The DM should therefore interpret the rules to give the "best fit" of how things would work out. After all, that sort of odd case is exactly why we have DMs in the first place.