XIL(ID:6603/xil001)

UNIVAC symbolic assembler 

eXtended Instruction Language

assembler for UNIVAC I
Related languages
X-1 => XIL   Evolution of
References:
  • Bemer, R "ISO TC97/SC5/WGA(1) Survey of Programming Languages and Processors" December 1962 view details
          in [ACM] CACM 6(03) (Mar 1963) view details