A digital synthesizer uses an 8-bit processor to store audio waveform samples as signed integers. In order to invert the phase of a waveform, the processor must negate each sample value.
Describe the binary process used to convert a positive 8-bit binary integer into its negative equivalent using the two's complement representation.
117 exam-style questions on Edexcel GCSE Computer Science Binary, covering Binary representation and number of states, Unsigned and two's complement integers, Converting denary and 8-bit binary, Binary addition and binary shifts, Concept of overflow, and Hexadecimal notation and conversion. Each one has a worked solution and a mark scheme showing where the marks go.