Re: A92: Re: Testing Keypresses

Re: A92: Re: Testing Keypresses

• To: assembly-92@lists.ticalc.org
• Subject: Re: A92: Re: Testing Keypresses
• From: Cliff Biffle <cbiffle@safety.net>
• Date: Fri, 11 Dec 1998 13:39:36 -0700
• Delivered-To: assembly-92-outgoing@towerguard.unix.edu.sollentuna.se
• In-reply-to: <000a01be2545$ce813d20$5092fea9@serac>
• Reply-To: assembly-92@lists.ticalc.org

>The ONLY way BEQ would be changing the program counter is if the Z (zero)
>bit of the CCR is set.  TST sets the Z bit only if the operand is zero.

Yeah, but BNE (branch if Z=0) just exits immediately, even if I move a 0
into KEY_PRESSED FLAG (which I assume is accomplished through something
along the lines of move.w #0,KEY_PRESSED_FLAG)

How big -is- the flag, anyway?  (b/w/l?)

>I would check your KEY_PRESSED_FLAG.  It must not be getting set to a non-
>zero state.

Do I have to handle that myself?  I assumed that that was handled by a
keyboard interrupt driver of some sort...should I just check the getkey
code instead?  That's a word, right?
--Cliff Biffle

• A92: Re: Testing Keypresses
• From: "Aaron Hill" <SeracOhw24@email.msn.com>

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