Class: CacheSim::Slot

Inherits:
Object
  • Object
show all
Defined in:
cache_simulation.rb

Overview

This class creates the slots. Initialization:

slot = CacheSim::Slot.new(num, is_dirty, is_valid, tag, saved_blocks)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(num, is_dirty, is_valid, tag, saved_blocks) ⇒ Slot

Note:

Generally you will want to initialize slots as empty. See the example.

Initalizes new Slot object

Examples:

Create a new slot

Slot.new("1a", 0, 0, 0, [0, 0, 0, 0])

Parameters:

  • num (String) —

    slot number, doesn't change after initialization, hexadecimal

  • is_dirty (Boolean) —

    flag to check if slot is dirty. 1 if dirty, 0 otherwise

  • is_valid (Boolean) —

    flag to check if slot has valid data. 1 if valid, 0 otherwise

  • tag (String) —

    current tag saved in slot

  • saved_blocks (Array) —

    array of blocks currently saved in the cache



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# File 'cache_simulation.rb', line 48

def initialize(num, is_dirty, is_valid, tag, saved_blocks)
  @num = num
  @is_dirty = is_dirty
  @is_valid = is_valid
  @tag = tag
  @saved_blocks = saved_blocks
end

Instance Attribute Details

#is_dirty ⇒ Boolean

Returns whether a slot currently is dirty (has content not copied to main memory)

Returns:

  • (Boolean) —

    1 if dirty, 0 otherwise



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# File 'cache_simulation.rb', line 29

def is_dirty
  @is_dirty
end

#is_valid ⇒ Boolean

Returns whether a slot currently has valid content or not

Returns:

  • (Boolean) —

    1 if valid, 0 otherwise



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# File 'cache_simulation.rb', line 26

def is_valid
  @is_valid
end

#num ⇒ String (readonly)

Gets the current slot number

Returns:

  • (String) —

    hexadecimal slot number



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# File 'cache_simulation.rb', line 23

def num
  @num
end

#saved_blocks ⇒ Array

Returns array of saved blocks. Defaults to array of zeros if empty.

Returns:

  • (Array) —

    array of blocks currently in cache



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# File 'cache_simulation.rb', line 35

def saved_blocks
  @saved_blocks
end

#tag ⇒ String

Returns current hexadecimal tag in the slot

Returns:

  • (String) —

    hexadecimal tag number



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# File 'cache_simulation.rb', line 32

def tag
  @tag
end