You are plain wrong: those pseudo instructions are few and when written "manually", most of the time, you end up with the same machine code. The main differenc

You are plain wrong: those pseudo instructions are few and when written "manually", most of the time, you end up with the same machine code. The main difference is you don't require a 'mini-compiler' for those pseudo-instructions in the assembler, and I will take that. And it is certain that compilers emmiting those pseudo-instructions are not "sane", actually it is the other way around (I guess the largest compilers will have a switch anyway). About RISC-V implementation hardware accelerating some machine code patterns, well this expected to be documented properly by any "sane" RISC-V implementation...