Clear a Buffer

The purpose of this option is simply to erase the contents of the specified buffer by setting the intensity to zero everywhere. For onboard buffers this is achieved via the arithmetic logic unit, while for extended memory buffers the CPU controls the process.

Clear which buffer ?

Any valid buffer may be cleared. If the buffer specified is in extended memory and is the current output buffer, then both the extended memory and buffer 0 copies will be cleared.

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DigImage User Documentation

Stuart Dalziel, last page update: 19 February 1996