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write reserve station

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This commit is contained in:
ZhuangYumin
2024-07-31 09:25:30 +00:00
parent 173a2904e5
commit 39f7468531
2 changed files with 154 additions and 26 deletions
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52
include/memory.h
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@ -42,7 +42,7 @@ struct Memory : dark::Module<Memory_Input, Memory_Output, Memory_Private> {
data_sign <= 1;
return;
}
if(bool(force_clear_receiver)) {
if (bool(force_clear_receiver)) {
status <= 0;
data_sign <= 1;
return;
@ -60,47 +60,63 @@ struct Memory : dark::Module<Memory_Input, Memory_Output, Memory_Private> {
return;
}
status <= 0;
if(max_size_t(cur_opt_type) == 0b01) {
size_t len=1<<max_size_t(cur_opt_bytes);
switch(len) {
case 1:
completed_memins_read_data <= memory_data[max_size_t(cur_opt_addr)];
if (max_size_t(cur_opt_type) == 0b01) {
size_t len = 1 << max_size_t(cur_opt_bytes);
switch (len) {
case 1: {
uint32_t tmp = static_cast<max_size_t>(memory_data[max_size_t(cur_opt_addr)]);
if (static_cast<max_size_t>(full_ins_id) == 0b01000000011) {
// sign exetend
if (tmp & 0x80) {
tmp |= 0xffffff00;
}
}
completed_memins_read_data <= tmp;
break;
case 2:
completed_memins_read_data <= *reinterpret_cast<uint16_t*>(&memory_data[max_size_t(cur_opt_addr)]);
}
case 2: {
uint32_t tmp = *reinterpret_cast<uint16_t *>(&memory_data[max_size_t(cur_opt_addr)]);
if (static_cast<max_size_t>(full_ins_id) == 0b01010000011) {
// sign exetend
if (tmp & 0x8000) {
tmp |= 0xffff0000;
}
}
completed_memins_read_data <= tmp;
break;
}
case 4:
completed_memins_read_data <= *reinterpret_cast<uint32_t*>(&memory_data[max_size_t(cur_opt_addr)]);
completed_memins_read_data <= *reinterpret_cast<uint32_t *>(&memory_data[max_size_t(cur_opt_addr)]);
break;
default:
throw std::runtime_error("Invalid bytes");
}
} else {
size_t len=1<<max_size_t(cur_opt_bytes);
switch(len) {
size_t len = 1 << max_size_t(cur_opt_bytes);
switch (len) {
case 1:
memory_data[max_size_t(cur_opt_addr)] = max_size_t(cur_opt_data)&0xff;
memory_data[max_size_t(cur_opt_addr)] = max_size_t(cur_opt_data) & 0xff;
break;
case 2:
*reinterpret_cast<uint16_t*>(&memory_data[max_size_t(cur_opt_addr)]) = max_size_t(cur_opt_data)&0xffff;
*reinterpret_cast<uint16_t *>(&memory_data[max_size_t(cur_opt_addr)]) = max_size_t(cur_opt_data) & 0xffff;
break;
case 4:
*reinterpret_cast<uint32_t*>(&memory_data[max_size_t(cur_opt_addr)]) = max_size_t(cur_opt_data);
*reinterpret_cast<uint32_t *>(&memory_data[max_size_t(cur_opt_addr)]) = max_size_t(cur_opt_data);
break;
default:
throw std::runtime_error("Invalid bytes");
}
}
data_sign <= 2; // has data and free
data_sign <= 2; // has data and free
return;
}
// now the memory is not busy
if (request_type_signal == 0) {
data_sign <= 1; // free
if (request_type_signal == 0) {
data_sign <= 1; // free
return;
}
status <= 1;
data_sign <= 0; // busy
data_sign <= 0; // busy
completed_memins_ROB_index <= request_ROB_index;
cur_opt_addr <= address_input;
cur_opt_data <= data_input;