Programming:Reverse A: Difference between revisions
added reverse A routine |
m layout |
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| Line 5: | Line 5: | ||
;- Reverse a | ;- Reverse a | ||
;Input: A | ;Input: A | ||
;Output: | ;Output: Reversed A | ||
;Destroys: B | ;Destroys: B | ||
;Length: | ;Length: 18 bytes | ||
;Author: | ;Author: calcmaniac84 | ||
; | ; | ||
ReverseA: | ReverseA: | ||
Latest revision as of 20:56, 18 April 2011
This routine will return the reverse order of register A.
; ;- Reverse a ;Input: A ;Output: Reversed A ;Destroys: B ;Length: 18 bytes ;Author: calcmaniac84 ; ReverseA: ld b,a rrca rrca xor b and %10101010 xor b ld b,a rrca rrca rrca rrca xor b and %01100110 xor b rrca ret