IDRASAcademic OS
COA100% Active LaboratorySIMULATION

Cache Memory Mapping & LRU Replacement Laboratory

Interactive cache SRAM simulation with Direct-Mapped, 2-Way/4-Way Set Associative, and Fully Associative configurations. Decomposes 12-bit addresses into Tag, Set Index, and Offset with real-time Hit/Miss detection.

COA • SIMULATIONCache Memory Mapping & LRU Replacement Laboratory
COA • HARDWARE SIMULATOR12-bit Address Space

Cache Memory Mapping & LRU Replacement Laboratory

Hit Rate
0.0%
0 Hits / 0 Total
Miss Count
0
Compulsory / Conflict
Sets × Ways
4 × 2
Total Lines: 8
Address Breakdown
8 Tag | 2 Set | 2 Off
Total: 12 bits
Address Bitfield Decomposition (12-bit binary: 000110100100):
Tag (8b)
00011010
0x1A
Set Index (2b)
01
Set 1
Offset (2b)
00
Byte 0
Cache SRAM Directory & Tag ArraysTargeting Set: Set 1
Set #Way 0 (Valid | Dirty | Tag | Data | LRU)Way 1 (Valid | Dirty | Tag | Data | LRU)
Set 0
V:0D:0Tag:0x--Empty
V:0D:0Tag:0x--Empty
Set 1 ◀ Target
V:0D:0Tag:0x--Empty
V:0D:0Tag:0x--Empty
Set 2
V:0D:0Tag:0x--Empty
V:0D:0Tag:0x--Empty
Set 3
V:0D:0Tag:0x--Empty
V:0D:0Tag:0x--Empty
Architectural Takeaway:

In TWO WAY, memory blocks can be placed in 2 possible lines in Set 1. Increasing associativity reduces conflict misses (caused when multiple addresses hash to the same set) at the cost of higher comparator hardware and multiplexer delay.

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