Assume that core components of single-cycle processor (shown below) have the followinglatencies:Regs Rd/Wr80ps/60psAdderSign-Extend20psI-MemMuxALUD-MemShift-Left-240ps50ps20ps100ps200ps20psSingle-cycle processor data path:Left[25-0[31-26]PC+4 [31-28ShiftLet[25-21]ReadReg. 1CLK -(20-16]ReadReg. 2Addr.DataRead15-11WriteZerodata-Cache / -MEMRes.Addr.ReadWiteDatadata 2ReadDataRegister FileWriteDataRegWriteRegDstBranch(15-0)SignExtendD-CacheD-MemALU32controlALUSrcControl InstTypeMemwriteMemtoRegMemReadJumpSuppose that this data path executes only two types of instruction:sub $rd, $rs, $rtlw$rt, offset ($rs)What would be the clock period to correctly execute the two instructions on the abovesingle-cycle processor? Assume that PC register doesn't take any latency (i.e.Propagating a new PC value to I-Cache/I-Mem doesn't take any cycle).

Solution: Mem takes longer than the Add unit, therefore the clock cycle time is adequate to the…

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 doesn’t take any cycle).

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 doesn’t take any cycle).

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Embedded Software Development

Using specific programming languages (like C and C++) to write code for a specific hardware device in which it runs is called embedded software development. It makes the device smart by performing actions based on user's input which improves the user experience. They are designed to perform function-specific tasks rather than doing multiple tasks like computers. The embedded system is incredibly intuitive. An embedded software system could be a system developed and organized on any device, apart from an old-fashioned computer. It is the brain of a specific device; however, it is a solely useless tool and simple to elucidate what software system is embedded.

Question

Assume that core components of single-cycle processor (shown below) have the following
latencies:
Regs Rd/Wr
80ps/60ps
Adder
Sign-Extend
20ps
I-Mem
Mux
ALU
D-Mem
Shift-Left-2
40ps
50ps
20ps
100ps
200ps
20ps
Single-cycle processor data path:
Left
[25-0
[31-26]
PC+4 [31-28
Shift
Let
[25-21]
Read
Reg. 1
CLK -
(20-16]
Read
Reg. 2
Addr.
Data
Read
15-11
Write
Zero
data
-Cache / -MEM
Res.
Addr.
Read
Wite
Data
data 2
Read
Data
Register File
Write
Data
RegWrite
RegDst
Branch
(15-0)
Sign
Extend
D-Cache
D-Mem
ALU
32
control
ALUSrc
Control InstType
Memwrite
MemtoReg
MemRead
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 doesn't take any cycle).

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