A82: Re: To C or not to C
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A82: Re: To C or not to C
>From Programming the Z80 by Rodney Zaks :
CP s Compare operand s to accumulator
Function : A - s
Describtion : The specified operand is subtracted from the ac-
cumulator, and the result is discarded. ......
Dines
-----Original Message-----
From: GeradS711@aol.com <GeradS711@aol.com>
To: assembly-82@lists.ticalc.org <assembly-82@lists.ticalc.org>
Date: 9. november 1997 16:05
Subject: A82: To C or not to C
>alright, this can go to faq@ticalc.org when it's answered. . .
>when I do this
>cp 6
>does the processor do this
>a-6
>or this
>6-a
>I need to know this because it sets the carry flags. . .
>if a was 5,a-6 would set the carry flag, however 6-a wouldn't, Jimmy
Mordel's
>zshell school says it is the first way, but his table says it the second
way.
>so if you could please help it would be great.
>Gerad
>