Set Associative Mapping - Solved PYQs (Part 1)

COA: Set Associative Mapping - Solved PYQs (Part 1)
Topics discussed:
1. Solved PYQ from GATE 1990:
a. P.A. bits
b. TAG, SET & WORD bits
2. Solved PYQ from GATE 2012:
a. Tag bits
b. Tag Directory Size
3. Assignment on GATE CS 2007: Find P.A. bits' Split.
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#COAByNeso #ComputerOrganizationAndArchitecture #SetAssociativeMapping

[@priyankamurugesan5237]

Tag 9 | Set no 5 | Offset 6

[@nikitha3202]

Answer for last one:
No of cache lines=128= 2^7 B
Line Size / Block Size = 64 = 2^6 B------> Offset = 6
No of sets = 2^7 / 2^2 = 2^5 --------------> set No. = 5
Tag bits = P.A bits - Set No. Bits - Offset
= 20-5-6
= 9 ------------->Tag Bits = 9

[@mvenkataadityaprakash9485]

Tag:9bits, set:5bits, block-offset:6bits

[@arnabnath4782]

tag : 9 , set no: 5,offset :6

[@rajeshprajapati4863]

Answer of Question at 9:12
No of Cache Lines = 128 = 2^7
Line Size / Block Size = 64 = 2^6 Words => *WORD* = 6 Bits
No of Sets = 2^7 / 2^2 = 2^5 => *SET NUMBER* = 5 Bits
Tag = P.A bits - Set No. Bits - Offset = 20-5-6 = 9 => *TAG* = 9 Bits

[@godolord9298]

9 tag , 5 set, 6 offset

[@chanikyasai6684]

He has to mention whether it is word-addressable or byte-addressable .In the second case since 1 word is 2 bytes 8-5-7 will be the answer. In the first case, 9-5-6 will be the answer

[@lamaspacos]

Very important and useful course.
Interesting: (four block) sets.

[@cadenmackintosh9325]

9 TAG | 5 SET | 6 BLOCK OFFSET

[@anandkumar-bd2ru]

9 tag| 5 set|6 offset

[@ArhamMR]

Excellent presentation.

[@Trendingthreesixty]

Bro complete full course for gate

[@rajeshprajapati4863]

Keep adding Homework Section.

[@Evelynzhang-l2k]

tag9 set no.5 offset6

[@sandipankayal9290]

Tag_9__set_5__B/L offset_6

[@gatecomputerscience1484]

Beutiful course ❤️❤️❤️🙂❤️🙂❤️❤️

[@gatecomputerscience1484]

Please upload ppt sir

[@cenanation123456]

Thank you

[@Bunny_Shark]

9, 5, 6

[@visheshsharma4517]

956

[@tusharparashar1879]

9:5:6

[@sachinsudaraka6397]

🤟❤️

[@gatecomputerscience1484]

956