The "Hi-Tech C" compiler you're referring to is likely a compiler for the C programming language, aimed at embedded systems or specific microcontrollers. Hi-Tech C compilers have been used for programming various microcontrollers, especially in the 8051 microcontroller family, which is very popular for embedded system design.
which is completely free to use. It supports all PIC10/12/16 devices without memory or time restrictions, though it disables the advanced "Omniscient Code Generation" (OCG) optimizations found in the PRO version. Microchip Technology Risks of Using Cracks Security Threats hi tech c compiler 983 crack top
In silicon halls, where minds entwine, A tool of old, yet still divine, The Hi-Tech C Compiler, a name of might, Version 983, shining with digital light. High-Tech C Compiler 9
The Hi-Tech C Compiler, robust and strong, Guards its secrets, where they belong, Yet, in the shadows, whispers are shared, Of versions cracked, and software impaired. CrackTop v1
If you’re looking for a C compiler for embedded systems like the PIC microcontroller (which the HI-TECH C compiler was famous for), I’d be happy to help you find or show you how to get started with the modern MPLAB XC8 compiler.