The MU1 (Bank 7) subroutine - Elite on the BBC Micro and NES

       Name: MU1                                                     [Show more]
       Type: Subroutine
   Category: Maths (Arithmetic)
    Summary: Copy X into P and A, and clear the C flag
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * MULTU calls MU1


 Used to return a 0 result quickly from MULTU below.


.MU1

 CLC                    ; Clear the C flag

 STX P                  ; Copy X into P and A
 TXA

 RTS                    ; Return from the subroutine

Maths (Arithmetic): MU1

[NES version, Bank 7]