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As well as allowing the programmer to save and load programs, blocks of memory or screen images into the RAM disc and catalogue the contents of the RAM disk, Beta BASIC also provided commands for the creation and use of arrays held in the RAM disk, allowing programs running in the 30 KB or so of free memory on the Spectrum to manipulate arrays ...
One nominated a number of rabbits and number of foxes to start, then watched the basic graph of the two populations rising and falling. At any point in time, one could pause the simulation and save to the audio cassette by pressing 'Record' on the connected remote tape recorder, then later resume the simulation on the Spectrum from that point.
The code could also be entered into a dedicated remote control device that would then control the VCR. The number is generated by an algorithm from the date, time and channel of the programme; as a result, it does not rely on an over-the-air channel to serve as a conduit to ensure the recording is properly timed.
Such a remote is very simple by design, usually only one button, and some with more buttons to control several gates from one control. Such remotes can be divided into two categories by the encoder type used: fixed code and rolling code. If you find dip-switches in the remote, it is likely to be fixed code, an older technology which was widely ...
Each bit of the RC-5 code word contains 32 carrier pulses, and an equal duration of silence, so the bit time is 64×27.778 μs = 1.778 ms, and the 14 symbols (bits) of a complete RC-5 code word take 24.889 ms to transmit. The code word is repeated every 113.778 ms (4096 ÷ 36 kHz) as long as a key remains pressed.
A remote comes with Xumo, so you’ll follow the instructions on the screen to pair the remote to the Xumo (mine seemed to do this pretty instantly) and connect to your home’s wifi.
Remote controls send a digital code word to the receiver. If the receiver determines the codeword is acceptable, then the receiver will actuate the relay, unlock the door, or open the barrier. Simple remote control systems use a fixed code word; the code word that opens the gate today will also open the gate tomorrow.
The program was designed to make Z80 machine code programming easier, [1] with full symbolic instructions, and an editing style similar to the Spectrum's built-in BASIC. Zeus Assembler was later re-released by the manufacturer of the ZX Spectrum, Sinclair Research. A Commodore 64 version was released in 1984. "Zeus 64 Assembler".