 Texas Instruments defines a variant where addresses are based on the bit-width of a processor's registers, not bytes.Microchip defines variants INTHX8S (INHX8L, INHX8H), INHX8M, INHX16 (INHX16M) and INHX32 for their PIC microcontrollers.Alfred Arnold's cross-macro-assembler AS, Werner Hennig-Roleff's 8051-emulator SIM51, and Matthias R. Paul's cross-converter BINTEL are also known to define extensions to the Intel hex format.