Even though I liked the Microsoft assembler M80 much it was pretty slow.
In contrast to the M80 the SLR supports Z80 mnemonics „only" but ist very fast and even generates the Microsoft .REL format.
As a curious person I took a look into the assembler using a debugger and found the code encrypted – also in the linker and librarian.
A real challenge for disassembling them!
Find the sources here: