NAME

pnch − file format for card images

DESCRIPTION

The PNCH format is a convenient representation for files consisting of card images in an arbitrary code. 

A PNCH file is a simple concatenation of card records.  A card record consists of a single control byte followed by a variable number of data bytes.  The control byte specifies the number (which must lie in the range 0-80) of data bytes that follow.  The data bytes are 8-bit codes that constitute the card image.  If there are fewer than 80 data bytes, it is understood that the remainder of the card image consists of trailing blanks. 

May 16, 1980