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CERTIFYING AUDIO TAPE FOR DIGITAL USZ_.. CQEI' t Q
2.
3.
Reduce the playback signal level to half of the normal level.
Connect the cassette player to the K.C. Standard Cassette Interface and run the tape. If the Data output is connected to the
following circuit, any flaws will cause the LED to illuminate
until reset with the pushbutton switch.
+5V
180A
DATA
PUSH CW TT(11'!
5w,T c rt (NO)
RESET
A COIN TOSS PROGRAM
Robert C. Taubert
I have a COSriiAC SLF II, purchased from. Net.r'onf cs R&D. I have
included a brochure and schematic of the ELF II. I have made no
modifications or additions to my ELF though I have some planned
for the future. I would like to add at least 41\ of memory, an
ASCII keyboard, a monitor, a cassette interface, and some form of
AD-DA board. I would like to be~in running Tiny Basic as soon as
possible with hopes of advanc Lng to l~K or larger in the future.
My first attempt at writing
machine language program Has somewhat frustrating and exciting. I wanted a program that would simulate 15 flips of a coin n.nd display the total number of heads on
the left LED and the tails on the right LED. ~"y next project will
be to add a delay sub-routine to allow me to increase the number
of tails.
I have enclosed a copy of the initial coin toss program, which
I wrote, and the random number generater, which I obtaineJ from
Ross Wirth's newsletter. The pro~ram is simple but does use many
of the 1802's instructions.
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