#EC310
Final Lecture 1

درجات #EC383 نزلت في التيمز

#EC351 تفاصيل الكويز

Format of Risc V #EC351

#EC301 :D

مرو عليه مرات يفيدكم #EC351

arm_inst.pdf

Register Count :
ARM = 16
MIPS = 32
RISC V = 32
#EC351

ARM:

Variable-length: Instructions can be 16, 32, or 64 bits long, depending on the instruction type and mode (ARM, Thumb, AArch64).
Condition codes: Most instructions can set or use conditional flags, enabling conditional execution without separate instructions.
Multiple instruction categories: Instructions are categorized based on opcode and format, leading to diverse encoding schemes.
Thumb instruction set: 16-bit compressed instructions improve code density but have different formats from full 32-bit instructions.
MIPS:

Fixed-length: All instructions are 32 bits long, simplifying decoding and making the format consistent.
Separate condition codes: Dedicated instructions like SLT (set on less than) set condition flags used for branching.
Simpler instruction categories: Fewer instruction types lead to a more uniform encoding scheme.
No compressed instruction set: Instructions occupy full 32 bits, potentially sacrificing code density for simplicity.
Impact:

ARM's variable length offers efficient coding options but adds complexity to decoding.
MIPS' fixed length simplifies decoding but limits potential code density improvements.
ARM's conditional flags enable efficient branching, while MIPS' separate instructions might require more explicit branching logic.