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PLZ
PLZ is Zilog's own family of system implementation languages. Designed specifically with the system programmer in mind, PLZ provides an extremely sophisticated structured programming environment. Implemented at two separate language levels and distinct translator packages, PLZ offers a complete solution to microcomputer system programming problems.
In its highest level, PLZ is a fully block structured language with an IF-THEN-ELSE clause, a case selector (actually implemented in the syntax of the IF statement), block REPEAT and EXIT statements, procedure references and, of course, RETURN's. Data types include BYTE, WORD, INTEGER, SHORT INTEGER and POINTER as well as ARRAYS of any type and RECORD's composed of groupings of the various basic types, arrays, or even other records.
At this language level, both an Interpreter and a Compiler are available. The interpreter provides a fast and convenient means of program development and debugging, while the highly efficient Compiler generates Z80 Object code.
For applications requiring total control of hardware resources, a second level of PLZ provides all the block structuring and control conventions of the full compiler, but uses assembly language statements rather than compiler level expressions and assignments. Thus, it acts as PLZ compatible structured assembler and produces code which can be linked directly to modules translated by the compiler.
Regardless of the scope or complexity of a system programming problem, PLZ will provide a simple, elegant, and complete environment for its solution.
