diff options
author | Siddarth Suresh <155843085+SiddarthSuresh98@users.noreply.github.com> | 2025-03-10 10:28:28 -0400 |
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committer | GitHub <noreply@github.com> | 2025-03-10 10:28:28 -0400 |
commit | 357e7fb37caf58cdfcdf85f7553db9378ff16e0c (patch) | |
tree | a0b0df4fff6f7d680901cd6007df67b15b3df3b6 /src/storage/dram.cc | |
parent | 57faaa064046824fec72e81a7e0973c495263395 (diff) | |
parent | d0ec568e4f063fd1c85087582283f3511e0a12ec (diff) |
Merge pull request #19 from bdunahu/bdunahu
cache store, handle load requests to memory, write allocate policy
-- changes look good
Diffstat (limited to 'src/storage/dram.cc')
-rw-r--r-- | src/storage/dram.cc | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/src/storage/dram.cc b/src/storage/dram.cc index 0db4c35..441f10b 100644 --- a/src/storage/dram.cc +++ b/src/storage/dram.cc @@ -8,13 +8,22 @@ 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->is_waiting = false; this->lower = nullptr; this->requester = IDLE; + this->wait_time = this->delay; } Dram::~Dram() { delete this->data; } +void Dram::do_write(signed data, int address) +{ + int line = address / LINE_SIZE; + int word = address % LINE_SIZE; + + this->data->at(line).at(word) = data; +} + Response Dram::write(Accessor accessor, signed int data, int address) { Response r = WAIT; @@ -38,20 +47,26 @@ Response Dram::write(Accessor accessor, signed int data, int address) return r; } -void Dram::do_read(std::array<signed int, LINE_SIZE>& data_line, int address){ +void Dram::do_read(std::array<signed int, LINE_SIZE> &data_line, int address) +{ int line = address / LINE_SIZE; data_line = this->data->at(line); } -Response Dram::read(Accessor accessor, int address, std::array<signed int, LINE_SIZE>& data) { +Response Dram::read( + Accessor accessor, int address, std::array<signed int, LINE_SIZE> &data) +{ Response r = WAIT; + if (this->requester == IDLE) this->requester = accessor; + if (this->requester == accessor) { if (this->wait_time == 0) { this->do_read(data, address); r = OK; } } - return r; - } + + return r; +} |