OP Codes and the push to confuse.

By Dr Craig Wright, as edited and published by his editors on craigwright.net.

OP Codes and the push to confuse.

A certain group of BTC Core developers have their (one day but not in my lifetime) sidechains that will enable OP_Codes that have been left broken in BTC (and which are working in BCH).

In this post I will pick on the lack of thought of some of these by demonstrating how you can create the same outcome without a new OP_Code.

Dup from Alt Stack

This copies a value to the Main from Alt stack leaving the Alt stack as it was.

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SWAP Stack

Swaps the Main and Alt Stack.

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We have now swapped the stack locations.

Dup TO ALT Stack

This copies to the Alt Stack while leaving a copy on the main stack. We do this as:

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SWAP CAT

The command works as:

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We can do this as follows in reverse as:

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Using the following:

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Good developers do not reinvent the wheel and sell it as if that makes them smart.

Basically, all that these commands allow is already there… if you think.