Pascal Implementation: P4 Compiler Compiler And... «Simple — 2026»

Written in Pascal, this program translates Pascal source code into P-Code.

Compile pcom.p and pint.p using an existing Pascal compiler.

Also written in Pascal, it acts as a virtual machine that assembles and executes the P-Code output. Implementation and Bootstrapping Process PASCAL Implementation: P4 Compiler Compiler and...

Use the resulting pcom executable to compile your own Pascal program, which produces a P-Code file (often named prr ).

Run the pint interpreter, providing the prr file as input to execute the program. Key Resources and Documentation Written in Pascal, this program translates Pascal source

The definitive guide to this system is Pascal Implementation: The P4 Compiler and Interpreter by Steven Pemberton and Martin Daniels. It provides the complete, documented source code for both the compiler and interpreter.

By targeting an abstract "P-Machine," the compiler remains machine-independent. To port Pascal to a new system, one only needs to write a P-Code interpreter or a P-Code-to-native-code translator for that specific hardware. It provides the complete, documented source code for

P4 served as the foundation for several major Pascal implementations, most notably the UCSD p-System . Pascal Implementation: A Book and Sources - CWI