From 968414044e87be7399f73a01b718b4894bb65e01 Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Sat, 25 Jun 2022 18:56:44 -0700
Subject: Move EvalState and the eval coroutines to a separate header.

---
 aisa/aisa.h | 38 --------------------------------------
 1 file changed, 38 deletions(-)

(limited to 'aisa/aisa.h')

diff --git a/aisa/aisa.h b/aisa/aisa.h
index 123b12a..c9a215c 100644
--- a/aisa/aisa.h
+++ b/aisa/aisa.h
@@ -15,28 +15,6 @@ namespace aisa {
     using regnum_t = std::uint_fast64_t;
     using regval_t = std::uint64_t;
 
-    template<typename CRTP> struct EvalState {
-        CRTP & crtp() noexcept { return static_cast<CRTP &>(*this); }
-
-        task<regval_t> async_load_reg(regnum_t rn)
-        {
-            while (true) {
-                if (auto rv = crtp().load_reg(rn); rv.has_value())
-                    co_return *rv;
-                co_await suspend();
-            }
-        }
-
-        task<void> async_store_reg(regnum_t rn, regval_t rv)
-        {
-            while (true) {
-                if (crtp().store_reg(rn, rv))
-                    co_return;
-                co_await suspend();
-            }
-        }
-    };
-
     struct Step {
         std::optional<std::pair<regnum_t, regval_t>> predicate;
         std::vector<regnum_t> source_regs;
@@ -57,22 +35,6 @@ namespace aisa {
         }
 
         virtual std::vector<regval_t> compute_destinations(const std::vector<regval_t> &source_vals) const = 0;
-
-        template<typename State> task<void> eval(State &state) const
-        {
-            if (predicate.has_value()) {
-                regval_t pval = co_await state.async_load_reg(predicate->first);
-                if (pval != predicate->second)
-                    co_return;
-            }
-            std::vector<regval_t> source_vals;
-            source_vals.reserve(source_regs.size());
-            for (unsigned int i = 0; i < source_regs.size(); ++i)
-                source_vals.emplace_back(co_await state.async_load_reg(source_regs[i]));
-            auto destination_vals = compute_destinations(source_vals);
-            for (unsigned int i = 0; i < destination_regs.size(); ++i)
-                co_await state.async_store_reg(destination_regs[i], destination_vals[i]);
-        }
     };
 
 }
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