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meynaf · 11 May 2017, 12:05

As this thread is for generic 68000 optimizations, here is another.
(Actually this one is valid for just about any cpu

)

You can replace :

Code:

 not.w d0
 and.w d0,d1
 not.w d0

By :

Code:

 or.w d0,d1
 eor.w d0,d1

(Makes "bit clear" / "and not" instruction proposals a lot less sexy doesn't it ?)

11 May 2017, 12:05	#152
meynaf son of 68k Join Date: Nov 2007 Location: Lyon / France Age: 51 Posts: 5,323	As this thread is for generic 68000 optimizations, here is another. (Actually this one is valid for just about any cpu ) You can replace : Code: not.w d0 and.w d0,d1 not.w d0 By : Code: or.w d0,d1 eor.w d0,d1 (Makes "bit clear" / "and not" instruction proposals a lot less sexy doesn't it ?)