11 lines
480 B
Markdown
11 lines
480 B
Markdown
# 2023-09-27 — Dev notes
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- Add `REW` rewind instruction for tape control?
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- (and `BSP` 'backspace'?)
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IBM 701 halts the machine and lights a 'checko
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IBM 701 (24-6042-1_701_PrincOps.pdf):
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If a copy instruction is given when there is no read-write component connected to the computing unit (e.g., fi nO READ Or WRITE instruction has been given, or fi a coPY has been given too late), the cal-
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culator stops and a copy-check light turns on, indi- cating an error in the program. |