Re: Disabling The Keyboard

look and see wrote:

> > Now LOOK and SEE and then post a correct version

> Here is a "correct" version.

No need for a complete rewrite. All you had to do was to delete
the line "jmp wake_up" in your previous post.

But don't you think it is much simpler instead to add
the delay to old value and compare this sum with the new
value, to subtract the old value from the new value and
compare this difference with the delay. This way there
is no wrap around problem and it also doesn't matter
whether you use a signed or unsigned brach condition.

0100: b4 00 move.b #0,m0
0102: cd 1a trap #$1a
0104: 89 d3 move.w r1,r3
0106: b4 00 loop: move.b #0,m0
0108: cd 1a trap #$1a
010a: 29 da sub.w r3,r1
010c: 83 fa 48 cmpq.w #72,r1
010f: 76 f5 bls.b loop
.

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