summaryrefslogtreecommitdiff
path: root/src/storage/dram.cc
blob: 7db5676ab545bf5ebb6532d45b86d8e073eebfec (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
#include "dram.h"
#include "definitions.h"
#include "response.h"
#include <algorithm>

Dram::Dram(int lines, int delay)
{
	this->data = new std::vector<std::array<signed int, LINE_SIZE>>;
	this->data->resize(lines);
	this->delay = delay;
	this->wait_time = this->delay;
	this->lower = nullptr;
	this->requester = IDLE;
}

Dram::~Dram() { delete this->data; }

Response Dram::write(Accessor accessor, signed int data, int address)
{
	Response r = WAIT;

	if (accessor == SIDE) {
		this->do_write(data, address);
		r = OK;
	} else {
		/* Do this first--then process the first cycle immediately. */
		if (this->requester == IDLE)
			this->requester = accessor;

		if (this->requester == accessor) {
			if (this->wait_time == 0) {
				this->do_write(data, address);
				r = OK;
			}
		}
	}

	return r;
}

Response Dram::read(Accessor accessor, int address) { return WAIT; }