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SimX timing simulation

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This commit is contained in:
Blaise Tine
2021-11-13 01:41:12 -05:00
parent 009e897cab
commit c2721fd545
26 changed files with 3690 additions and 1639 deletions
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71
sim/simX/scoreboard.h Normal file
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#pragma once
#include "pipeline.h"
#include <queue>
namespace vortex {
class Scoreboard {
private:
std::vector<RegMask> in_use_iregs_;
std::vector<RegMask> in_use_fregs_;
std::vector<RegMask> in_use_vregs_;
public:
Scoreboard(const ArchDef &arch)
: in_use_iregs_(arch.num_warps())
, in_use_fregs_(arch.num_warps())
, in_use_vregs_(arch.num_warps())
{
for (int w = 0; w < arch.num_warps(); ++w) {
in_use_iregs_.at(w).reset();
in_use_fregs_.at(w).reset();
in_use_vregs_.at(w).reset();
}
}
bool in_use(const pipeline_state_t& state) const {
return (state.used_iregs & in_use_iregs_.at(state.wid)) != 0
|| (state.used_fregs & in_use_fregs_.at(state.wid)) != 0
|| (state.used_vregs & in_use_vregs_.at(state.wid)) != 0;
}
void reserve(const pipeline_state_t& state) {
if (!state.rdest)
return;
switch (state.rdest_type) {
case 1:
in_use_iregs_.at(state.wid).set(state.rdest);
break;
case 2:
in_use_fregs_.at(state.wid).set(state.rdest);
break;
case 3:
in_use_vregs_.at(state.wid).set(state.rdest);
break;
default:
break;
}
}
void release(const pipeline_state_t& state) {
if (!state.rdest)
return;
switch (state.rdest_type) {
case 1:
in_use_iregs_.at(state.wid).reset(state.rdest);
break;
case 2:
in_use_fregs_.at(state.wid).reset(state.rdest);
break;
case 3:
in_use_vregs_.at(state.wid).reset(state.rdest);
break;
default:
break;
}
}
};
}