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Guy Harris (talk | contribs) →Assembler statement format: Multiple assembler languages. (And did coding forms die off once programs were entered in interactive sessions rather than punched on cards?) |
Peter Flass (talk | contribs) m →Assembler statement format: typo. I think no one would write a program out in longhand once it could be entered on a terminal. The coding form was for keypunching. |
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==Assembler statement format==
[[Image:IBM System 360 Assembler Coding Form.jpg|thumb|right|Some programmers used an assembler coding form for the IBM 360 assembly
[[Image:IBM keypunch deck and program listing for Assembly language student program at New York University 1979.jpg|thumb|right|Keypunch cards and a printed assembly listing were common during IBM 370 assembly language use in the 1970s]]
The format of assembler language statements reflects the layout of an 80-column punched card, though successive versions have relaxed most of the restrictions.
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