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58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
// Do not edit this file
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#ifndef MEMORY_H
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#define MEMORY_H
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// Return values
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#define OK 0
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#define FAIL -1
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// Simulation parameters
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#define MEM_DEBUG 0
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#define NUM_BLOCK_OFFSET_BITS 2
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#define MAX_SIZE 1000
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/**
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* Computes the number of blocks given the number of addressable bits and block
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* offset bits.
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*
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* For example (from README),
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* if the number of addresses is 256 and the number of block offset bits is 2,
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* then the block size is 2^2=4. Thus, the address space can be divided into 64
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* blocks of 4 addresses each.
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*
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* Parameters:
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* addr_bits: number of addressable bits
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* num_block_offset_bits: number of block offset bits
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* Return:
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* number of blocks (success) | FAIL (error)
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*/
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int number_of_blocks(unsigned int addr_bits,
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unsigned int num_block_offset_bits);
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/**
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* Reads the bytes in memory.txt to initialize the phy_memory array
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*
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* Parameters:
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* file_name: name of the file to read
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* Return:
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* number of addressable bits (no error) | FAIL (error)
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*/
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int read_memory_file(char* file_name);
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/**
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* Identifies the starting physical memory address location for each block.
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*
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* Parameters:
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* num_blocks: number of blocks
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* num_block_offset_bits: number of block offset bits
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* Return:
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* void
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*/
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void initialize_block_pointers(unsigned int num_blocks,
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unsigned int num_block_offset_bits);
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#endif // MEMORY_H
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