From 9ae740fb49a0c0debfa0c2e42d2ced525a185dd1 Mon Sep 17 00:00:00 2001
From: Quaternions <krakow20@gmail.com>
Date: Wed, 15 Jan 2025 01:01:34 -0800
Subject: [PATCH] InstructionCache
---
lib/common/src/instruction.rs | 36 +++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/lib/common/src/instruction.rs b/lib/common/src/instruction.rs
index d1d6e36..8643033 100644
--- a/lib/common/src/instruction.rs
+++ b/lib/common/src/instruction.rs
@@ -33,6 +33,42 @@ impl<I,T,X> InstructionFeedback<I,T> for X
X:InstructionEmitter<I,TimeInner=T>+InstructionConsumer<I,TimeInner=T>,
{}
+pub struct InstructionCache<S,I,T>{
+ instruction_machine:S,
+ cached_instruction:Option<TimedInstruction<I,T>>,
+ time_limit:Time<T>,
+}
+impl<S,I,T> InstructionCache<S,I,T>
+ where
+ Time<T>:Copy+Ord,
+ Option<TimedInstruction<I,T>>:Clone,
+ S:InstructionEmitter<I,TimeInner=T>+InstructionConsumer<I,TimeInner=T>
+{
+ pub fn new(
+ instruction_machine:S,
+ )->Self{
+ Self{
+ instruction_machine,
+ cached_instruction:None,
+ time_limit:Time::MIN,
+ }
+ }
+ pub fn next_instruction_cached(&mut self,time_limit:Time<T>)->Option<TimedInstruction<I,T>>{
+ if time_limit<self.time_limit{
+ return self.cached_instruction.clone();
+ }
+ let next_instruction=self.instruction_machine.next_instruction(time_limit);
+ self.cached_instruction=next_instruction.clone();
+ self.time_limit=time_limit;
+ next_instruction
+ }
+ pub fn process_instruction(&mut self,instruction:TimedInstruction<I,T>){
+ // invalidate cache
+ self.time_limit=Time::MIN;
+ self.instruction_machine.process_instruction(instruction);
+ }
+}
+
//PROPER PRIVATE FIELDS!!!
pub struct InstructionCollector<I,T>{
time:Time<T>,