HI-TECH for H8/300(H) v7.80 - legacy compiler^

HI-TECH for H8/300(H) is more than a C compiler - it is a complete development system for C and assembler. With features like an integrated development environment†, assembler-free programming, and an efficient analyzing optimizer, you can develop exceptionally tight and fast code with ease.

The Renesas Technology Corp H8 microcontroller family offers a large, flat address space (64K for H8/300, megabytes for H8/300H) and a RISC-like set of CPU registers. The HI-TECH compiler takes advantage of these characteristics to produce compact, fast code.

The H8 has a conventional downward growing stack, and a single memory address space, enabling the compiler to implement fully recursive and re-entrant functions.

HI-TECH for H8/300(H) Compiler

  • ANSI C, supporting all standard data types
  • Unlimited number of source files
  • Multiple optimization levels
  • Comprehensive library with source code
  • Floating point support (32-bit)
  • Mixed C and assembler programming
  • Unlimited recursion
  • Listings showing generated assembler
  • Optimizing assembler
  • Full linker
  • Remote source-level debugger for low-cost in-target debugging included at no extra cost

Integrated Development Environment

HI-TECH for H8/300(H) can be run entirely from the HI-TECH Professional Development environment†. This environment allows you to manage all of your H8/300 projects. You can compile, assemble and link your embedded application with a single step.

Optionally, the compiler may be run directly from the command line, allowing you to compile, assemble and link using one command.

Processors Supported

HI-TECH for H8/300(H) compiler for the H8/300 and H8/300H microcontroller families, supporting all Renesas Technology Corp. devices such as H8/300, H8/300L, H8/300H and H8S series devices.


^Legacy compilers: Compilers which are no longer maintained. HI-TECH Priority Access is not available for legacy compilers. Printed manuals are available only while stocks last.

† The HI-TECH Professional Development environment (HPD™) is runnable from Windows (does not include Vista).