[A83] Re: Distance RAM clearer :-)

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[A83] Re: Distance RAM clearer :-)


>We could do some more useful things with this routine :-)
>
>Let's summarize:
>We have 2 input signals.
>So we have 2^2 = 4 bit simple input from the linkport

red white
1     0
1     1
0     1
0     0

>Plus 2 1-signal inputs = 6 signals

How do you get that extra signals?

>The following routine should explain how to read this 2bit input.
>
>begin:
>in a,(00)
>and 03h
>cp 01h
>jp z,_1signal
>cp 02h
>jp z,_2signal
>jp begin
>
>_1signal:
>call _signal_delay
>in a,(00)
>and 03h
>cp 01h
>jp z,_1_1_signal
>cp 02h
>jp z,_1_2_signal
>jp z,_1_0_signal
>
>_2signal
>call _signal_delay
>in a,(00)
>and 03h
>cp 01h
>jp z,_2_1_signal
>cp 02h
>jpz,_2_2_signal
>jp z,_1_0_signal
>
>_signal_delay:
>...something to define the delay between two sub-signals
>ret
>
>_1_0_signal:
>...blah-blah...
>_1_1_signal:
>...blah-blah...
>_1_2_signal:
>...blah-blah...
>_2_0_signal:
>...blah-blah...
>_2_1_signal:
>...blah-blah...
>_2_2_signal:
>...blah-blah...
>
>now to find some use for that :-)
>Perhaps some base-6 Pin code :-)

That needs timing and such, so you need extra hardware, right?

>Or, some sensor-info, does someone know how to do short delays
>between two signals, such as [signal1 - short delay - signal2], when
>you press 1 button?
>A simple way, that is. (I already thought of using pulse-counters and
>pulse-generators, but it should be much simpler)

That's possible, I think, with a clock-pulse routine, where the calc reads
signals only when there's a clock pulse. This also needs extra hardware, but
it's less complicated I think, and the program can be endlessly epanded.
Another possibility would be to use out(00),a to acknowledge input.

>--Peter Martijn Kuipers
>
>
>>
>>
>> Hi
>>
>> Nothing like this existed, and it is worthless, mostly, but it's cool.
>>
>> begin:
>> in a,(00)
>> and 03h
>> cp 01h
>> jp z,C900    ;ram cleared
>> cp 02h
>> ret z
>> jp begin
>>
>> or on-calc (83+)
>>
>> DB00
>> E603
>> FE01
>> CA00C9
>> FE02
>> C8
>> C3959D    ; jump to 9D95, the .org value
>>
>> Now make a button and connect it to the white (middle) pin and the earth,
>> and optionally an escape button to the red (top) pin and the earth.
>> I know, it's not as impressive as the PIXpander would be, or the IRlink
or
>> however it's called, but it's still cool.
>>
>> Bye,
>>     Ronald
>>
>>
>>
>>
>
>
>
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