diff options
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; +} |