diff options
Diffstat (limited to 'src/storage')
| -rw-r--r-- | src/storage/dram.cc | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/storage/dram.cc b/src/storage/dram.cc index 845db21..3143a61 100644 --- a/src/storage/dram.cc +++ b/src/storage/dram.cc @@ -9,6 +9,7 @@ Dram::Dram(int lines, int delay) this->data->resize(lines); this->delay = delay; this->lower = nullptr; + this->servicing = IDLE; } Dram::~Dram() { delete this->data; } @@ -16,12 +17,27 @@ Dram::~Dram() { delete this->data; } Response *Dram::write(Accessor accessor, signed int data, int address) { struct Response *r = new Response(); - int line = address / LINE_SIZE; - int word = address % LINE_SIZE; + r->status = WAIT; - this->data->at(line).at(word) = data; + /* Do this first--then process the first cycle immediately. */ + if (this->servicing == IDLE) { + this->servicing = accessor; + this->wait_time = delay; + } + + if (this->servicing == accessor) { + if (this->wait_time == 0) { + int line = address / LINE_SIZE; + int word = address % LINE_SIZE; + + this->servicing = IDLE; + this->data->at(line).at(word) = data; + r->status = OK; + } else { + --this->wait_time; + } + } - r->status = OK; return r; } |