In the original MIPS-32 instruction set, some fields in the instruction are unused in certain instructions. (The shift field in R-format instructions is an exam

In the original MIPS-32 instruction set, some fields in the instruction are unused in certain instructions. (The shift field in R-format instructions is an example.) I had a student who did a project to take real MIPS machine language programs and store textual data in them by repurposing these unused fields.