Human folly for 02023-09-01

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• Inside Am2901 amds 1970s bit slice (righto.com):

  the AMD Am2901 had an ECL version, the Am2901C. #history #hardware

• Disassemble (github.com):

  Sam Tobin-Hochstadt wrote a disassemble command for #Racket #Scheme. % raco pkg install disassemble > (require disassemble) > (disassemble f)

• Loop (ccs.neu.edu):

  Olin Shivers’s apparently unimplemented proposal from ICFP 02005 of a #looping macro for #Scheme. Seems a lot like Haskell do-notation.

• Foof loop (mumble.net):

  Taylor Campbell’s foof-loop proposal for a #looping macro for #Scheme.

• Eagercomprehensions (github.com):

  The R7RS work-in-progress proposal for a #looping macro for #Scheme.

• SRFI (srfi.schemers.org):

  The most widely supported #looping construct in #Scheme is #SRFI 42.

• SRFI (docs.racket-lang.org):

  To use #SRFI 42 for #looping in #Racket you (require srfi/42). Then you can (list-ec (: i 5) (* i i)) and get a list of squares, but it takes twice as long as it should.

• For (docs.racket-lang.org):

  #Racket has its own #looping construct (time (for ([j 100000]) (for/sum ([i 10001]) i))) at the same speed as named let.

• Redodb (github.com):

  a wait-free key-value #transactional database for persistent memory such as #Optane RAM. #databases

• SPRAM iCE40 FPGA (projectf.io):

  to use the single-ported RAM on a #Lattice #iCE40 #FPGA you have to tell #Yosys explicitly to instantiate an SB_SPRAM256KA