Just yesterday I wrote some Assembler code to improve a system function. It's always fun to get some Assembler statements to work.
I know, high level languages, such as Java, C, PL/I and COBOL, are much more productive. But sometimes, if your code is very close to the hardware and if you want to use new instructions, Assembler is the best language to get things done. We do not have the z/VSE compilers, that support the usage for some system interfaces and you can't use high level languages for Supervisor implementations, except... [More]