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August 26, 2005

Very Old Geek Joke

Proposed Additions to the PDP-11 Instruction Set:

BBW Branch Both Ways
BEW Branch Either Way
BBBF Branch on Bit Bucket Full
BH Branch and Hang
BMR Branch Multiple Registers
BOB Branch On Bug
BPO Branch on Power Off
BST Backspace and Stretch Tape
CDS Condense and Destroy System
CLBR Clobber Register
CLBRI Clobber Register Immediately
CM Circulate Memory
CMFRM Come From -- essential for truly structured programming
CPPR Crumple Printer Paper and Rip
CRN Convert to Roman Numerals

I was sure that CPPR was a real code - whenever I tried to get my machine code listings out, the band-printer would CPPR my printout. All it will take now is for someone to ask what a PDP* was to make me feel really, really old.

[* We used PDP 11/70's at university - 30 odd terminals and hundreds of students. Fortunately only half the students had accounts on the same PDP as you. The other half had another PDP all to themselves :-)]

Posted by Peskie at August 26, 2005 12:00 PM


I have used the CDS code twice, now.

Posted by: Old Horsetail Snake at August 30, 2005 03:37 AM