From 69795c1eabc861861cb7927968ca75cabe3295eb Mon Sep 17 00:00:00 2001
From: Martin Schoeberl <martin@jopdesign.com>
Date: Fri, 26 Jul 2024 14:41:34 +0200
Subject: [PATCH] store state

---
 src/main/scala/leros/Decode.scala | 4 +---
 src/main/scala/leros/Leros.scala  | 8 +++++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/main/scala/leros/Decode.scala b/src/main/scala/leros/Decode.scala
index 01e7fa2..a33f687 100644
--- a/src/main/scala/leros/Decode.scala
+++ b/src/main/scala/leros/Decode.scala
@@ -17,7 +17,6 @@ class DecodeOut extends Bundle {
   val nextState = State()
   val enaByte = Bool()
   val enaHalf = Bool()
-  val isStore = Bool()
   val isStoreInd = Bool()
   val isStoreIndB = Bool()
   val isStoreIndH = Bool()
@@ -44,7 +43,6 @@ object DecodeOut {
     v.nextState := execute
     v.enaByte := false.B
     v.enaHalf := false.B
-    v.isStore := false.B
     v.isStoreInd := false.B
     v.isStoreIndB := false.B
     v.isStoreIndH := false.B
@@ -188,7 +186,7 @@ class Decode() extends Module {
       d.useDecOpd := true.B
     }
     is (ST.U) {
-      d.isStore := true.B
+      d.nextState := store
     }
     is (LDADDR.U) {
       d.nextState := loadAddr
diff --git a/src/main/scala/leros/Leros.scala b/src/main/scala/leros/Leros.scala
index eb252fa..8aaad6a 100644
--- a/src/main/scala/leros/Leros.scala
+++ b/src/main/scala/leros/Leros.scala
@@ -98,13 +98,15 @@ class Leros(prog: String, size: Int = 32, memAddrWidth: Int = 8) extends LerosBa
       // nothing to be done here
     }
 
+    is (store) {
+      dataMem.io.wr := true.B
+    }
+
     is (execute) {
 
-      when(decReg.isStore) {
-        dataMem.io.wr := true.B
-      }
       when(decReg.isStoreInd) {
         dataMem.io.wr := true.B
+        // TODO: am I missing here something? See the other store indirect
         // TODO: this is a super quick hack to get the LED blinking
         outReg := accu
       }