Single-cycle MIPS Architecture 1. Assume that core components of single-cycle processor (shown below) have the following latencies: I-Mem 40ps Adder 50ps Мих 20ps ALU 100ps Regs Rd/Wr 80ps/60ps D-Mem Sign-Extend Shift-Left-2 20ps 200ps 20ps Single-cycle processor data path: |25-0 p-26 [25-21 Red Reg 1 Read Rey 2 CLK- 20-16 Addr Data Read Wte Reg Cache MEM Read Wte De Read Dea Register Fe Wre RegWrite RegD Brancs (15-0 Sign End DCache D-Mem ALU control ALUSre Contrel atye Memtokeg Memlead ump Suppose that this data path executes only two types of instruction: sub $rd, $rs, $rt lw $rt, offset($rs) What would be the clock period to correctly execute the two instructions on the above single-cycle processor? Assume that PC register doesn't take any latency (i.e. Propagating a new PC valuc to I-Cache/I-Mem docsn't take any cycle).

Systems Architecture
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Chapter4: Processor Technology And Architecture
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Problem 3PE: Processor R is a 64-bit RISC processor with a 2 GHz clock rate. The average instruction requires one...
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Single-cycle MIPS Architecture
1. Assume that core components of single-cycle processor (shown below) have the following
latencies:
I-Mem
40ps
Adder
50ps
Mux
20ps
ALU
100ps
Regs Rd/Wr
80 ps/60ps
D-Mem Sign-Extend Shift-Left-2
20ps
200ps
20ps
Single-cycle processor data path:
125-0
[31-26
PC- 4 (11-2
Sum
25-21
CLK
Read
Reg 11
20-16
Read
Reg 2
Addr
Data
Read
15-31
Wte
Reg
Addr
Cache HMEM
Wte
Deta
Read
data 2
Read
Data
Register Fle
Wrte
Data
Regwrite
(15-0)
RegDs!
Branch
ALU
DCache
D-Mem
End
12
control
ALUSre
Contrel Inst Type
MemtoReg
Memlead
Jump
Suppose that this data path executes only two types of instruction:
sub $rd, $rs, $rt
lw $rt, offset ($rs)
What would be the clock period to correctly execute the two instructions on the above
single-cycle processor? Assume that PC register doesn't take any latency (i.e.
Propagating a new PC value to I-Cache/I-Mem docsn't take any cycle).
Adder
ALU
Transcribed Image Text:Single-cycle MIPS Architecture 1. Assume that core components of single-cycle processor (shown below) have the following latencies: I-Mem 40ps Adder 50ps Mux 20ps ALU 100ps Regs Rd/Wr 80 ps/60ps D-Mem Sign-Extend Shift-Left-2 20ps 200ps 20ps Single-cycle processor data path: 125-0 [31-26 PC- 4 (11-2 Sum 25-21 CLK Read Reg 11 20-16 Read Reg 2 Addr Data Read 15-31 Wte Reg Addr Cache HMEM Wte Deta Read data 2 Read Data Register Fle Wrte Data Regwrite (15-0) RegDs! Branch ALU DCache D-Mem End 12 control ALUSre Contrel Inst Type MemtoReg Memlead Jump Suppose that this data path executes only two types of instruction: sub $rd, $rs, $rt lw $rt, offset ($rs) What would be the clock period to correctly execute the two instructions on the above single-cycle processor? Assume that PC register doesn't take any latency (i.e. Propagating a new PC value to I-Cache/I-Mem docsn't take any cycle). Adder ALU
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