Chương 2: Kiến trúc tập lệnh
1. Tập lệnh MIPS
2. Biên dịch mã máy
Kiến trúc
tập lệnh
•Multiple Implementations:
8086 Pentium 4
•ISAs evolve: MIPS-I,
instruction set
software
hardware
Chu kỳ thực thi
lệnh cơ bản
Instruction
Fetch
Instruction
Decode
Operand
Fetch
Execute
Result
Store
Next
Instruction
Obtain instruction from program storage
Determine required actions and instruction size
Locate and obtain operand data
Compute result value or status
Deposit results in register or storage for later use
Determine successor instruction
Thực thi chương trình
Bộ xử lý thực thi chương trình
như thế nào?
1. Tải lệnh
2. Tìm ra toán tử được sử
dụng
3. Tìm ra dữ liệu nào được
sử dụng
4. Thực hiện tính toán
5. Tìm lệnh tiếp theo
Lặp lại quá trình …
Bài giảng nhấn mạnh sự thực thi trong bộ xử lý MIPS
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