Questions tagged [focal]
FOCAL is an early langauge from DEC, used on PDP machines. Use this tag for programming questions about the language.
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What encoding is this BK-0010-01 FOCAL file in?
I want to keep copies of the programs I write in BK FOCAL on my modern laptop, and in the end to be able to transfer text file programs to the BK.
My current system for transferring files between the ...
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What is the difference (if any) between these two expressions in FOCAL?
I am trying to understand the 1969 FOCAL program Hamurabi in detail. The program was originally written for the PDP-8 version of FOCAL, but I am running it on the BK 0010-01 which presumably is a ...
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How did FOCAL convert strings to a number?
Reading over the manuals for FOCAL-69 and -71, as well as U/W-FOCAL, I realize there is one bit of the workings that I can't find an explanation for.
FOCAL did not have string variables, so to allow &...
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What causes the monitor to reduce to four lines on BK 0010 Focal?
When working with the Focal cartridge inserted on my BK 0010, the area displayed on the monitor suddenly reduces to just four lines
, instead of the usual 20
Each time this has happened when I've ...
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Was 1.10 a valid line number in FOCAL?
I'm looking over examples of FOCAL code, and I see that group numbers in the examples start with a 0 if need be. That is, it's 01.10, not 1.10. Was a leading zero optional?
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