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segmem.c
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segmem.c
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#include "assert.h"
#include "mem.h"
#include "seq.h"
#include "segmem.h"
#include "stdio.h"
#include "stdlib.h"
#define T Segmem_T
struct T { /* represents a 2D array of cells each of size 'size' */
Seq_T memory;
int length;
};
T Segmem_new(int num_words)
{
T segmem = malloc(sizeof(*segmem));
segmem->memory = Seq_new(1);
segmem->length = 0;
int *segment = malloc(num_words * sizeof(int));
Seq_addhi(segmem->memory, segment);
return segmem;
}
T Segmem_new_seg(int num_words, T segmem)
{
int *segment = malloc(num_words * sizeof(int));
// printf("%p \n", (void *)segment);
Seq_addhi(segmem->memory, segment);
segmem->length += 1;
return segmem;
}
int Segmem_at(T segmem, int index, int offset)
{
int *segment = (int *)Seq_get(segmem->memory, index);
int value = segment[offset];
return value;
}
void Segmem_update(T segmem, int index, int offset, int value)
{
int *segment = (int *)Seq_get(segmem->memory, index);
segment[offset] = value;
}
void Segmem_free(T segmem)
{
int i;
for(i = 0; i < segmem->length; i++)
{
int *array = (int *)Seq_get(segmem->memory, i);
//printf("%p\n", (void *)(array));
free(array);
}
Seq_free(&(segmem->memory));
}