11. The team first built an OOPS environment using a combination of procedural Rexx and assembler language . 12. Most early users of OS / 360 were familiar with IBM Assembler Language and would have recognized this at once. 13. Because object-oriented programming is considered a paradigm, not a language, it is possible to create even an object-oriented assembler language . 14. VPS / VM policy was for the operating system and main utilities to be written in IBM 370 assembler language . 15. Two major attempts were made to rewrite the system in assembler language , which reduced the calculation time to a few moments. 16. The scores of these chiptunes were written in Motorola 68000 Assembler language , not with the help of a graphical music editor. 17. Many CICS application programs continued to be written in assembler language , even after COBOL and PL / I support became available. 18. What it did not have was any sort of operating system or high level programming facility, only a basic assembler language program. 19. The SK8Script debugger was re-implemented at the assembler language level ( previously in Lisp ) and the compiler and runtime performance improved. 20. The supervisor, most job programs, large parts of MTS including many DSRs and CLSs are written in 360 / 370 assembler language .