The PLMX Compiler
|At the beginning of this year (february 2009) Emmanuel Roche has work to resurrect a "lost" PL/M compiler called PLMX. He do a great job collecting software and examples from Rlee Peter's archives, retyping in full the user's manual and also adding some smart guidelines for CP/M newbies.|
But what is PLMX ?
"PLMX communicates with all 8/1 6-bit micros
|Thanks, Emmanuel, for your great work!
Now the fun part, you can grab:
Update on 2016/11/04.
Emmanuel found a new advertising article and post it on comp.os.cpm. I'm reporting it here for completeness:
|- "PLMX: A PL/M to Fit All Micros"
"The Intelligent machines Journal", Issue 20, 21 January 1980, p.10
(Retyped by Emmanuel ROCHE.)
PLMX, billed as a universal high-level language for microprocessors, has been introduced by Systems Consultants, Inc. ("SCI"), of San Diego, California.
PLMX can be used with all 8- or 16-bit microprocessors known today, and its modular structure will enable it to generate code for any such microprocessor yet to be developed, the company says. PLMX is designed primarily for use in microcomputer product development systems and in real-time process control applications.
According to Dr. Jack Ingber, manager of product development for SCI, PLMX takes PL/M to its logical conclusion. PL/M, originally derived from PL/I, is used only on Intel 8080- and 8086-based systems. Other versions, such as PL/Z for the Zilog Z-80 and PL/65 for the 6502, are used only with those specific microprocessors.
PLMX syntax is identical to that of PL/M, which means that the entire library of existing PL/M programs can be compiled under PLMX. It also means that, through the PLMX compiler, PL/M programs may be used on microprocessors other than the Intel 8080.
PLMX is said to be usable on any 8- or 16-bit microprocessor, but it can, according to SCI, also be adapted to interface with practically any operating system. Currently (January 1980), the PLMX compiler can run under TEKDOS and CP/M operating systems. TEKDOS is the operating system for Tektronix' 8002A Universal Microprocessor Development System, and CP/M is an operating system that can support just about any Intel 8080-based system in use today, including many hobbyist and small industrial systems. Interfaces to other operating systems will be available in 1980.
In addition, PLMX is a true compiler, not an interpretive compiler such as BASIC or Pascal in some of their current (1980) implementations. Since an interpreter must be resident in ROM for execution of programs, an interpretive compiler requires a considerable amount of memory space, thus restricting its usefulness in developing ROM-based products.
As seen in the illustration, the structure of PLMX allows for one interface to the operating system and another to the particular microprocessor, neither of which requires any modification to the main body of PLMX itself (i.e., to the compiler). The interfaces to the different operating systems or to different microprocessors are modularized and, therefore, easily interchangeable. This means that Input/Output routines or alternate code generators are readily accomplished.