Update mov_FAC1_FAC2 to match the original implementation

[rikardn]

• An update of mov_FAC1_FAC2 and mov_r_FAC1_FAC2 to match the Microsoft implementation.
• Added the Microsoft license to LICENSE
• Removed jump because it now fits in the slot
• Added links to the original code in each file
• Added notes that this is identical to the original implementation in each file

[rikardn]

Perhaps I should switch to using a local label for the loop -> Now updated

[FeralChild64]

1. Could you also update the https://github.com/MEGA65/open-roms/blob/master/STATUS.md? Set the Status of these routines to DONE, and put a remark like "Taken from the Microsoft BASIC, original name: MOVEAF".

2. What about he similarity detection? We need some way to prevent/silence the similarities affecting the open-source Microsoft code.

[FeralChild64]

We definitely need to mention that this file is covered by the MIT License. And preferably just below the ;; #LAYOUT# metadata, not later.

[rikardn]

Agree. I'll fix

[rikardn]

I can update the STATUS. I agree that we should turn off the similarity detection of all areas of the BASIC. I can look into it.

[rikardn]

I have updated the PR with the above.

Similarity testing for the part of the basic that is in the kernal ROM remains. Currently it doesn't fail, but we will have to remove it at some point. Is it ok to leave it out from this PR?

[FeralChild64]

I didn't mean completely removing the BASIC ROM similarity checks - Commodore might have made some improvements there, we still need the check.

What I meant was to be able to skip checking individual procedures, like $BC0C-$BC1A area. My proposal: mask this area with 0's, either using some script here (so that the similarity tool would receive an altered ROM images), or within the similarity tool itself.

[FeralChild64]

We should also mention the Microsoft Corporation here. MIT licenses might have slightly different copyright notices, crediting different authors - we need to be more specific.

[FeralChild64]

Maybe something like this:

; This file is under the MIT license, it contains code released by Microsoft Corporation.
; See LICENSE for more information.