Towards blinking

asm/test/blink.s

@@ -0,0 +1,47 @@
+
+
+start:
+	loadi 0
+	loadhi 2
+	store r0
+ll1:
+    loadi 255
+	loadhi 255
+ll2:
+    subi 1
+	nop
+	brnz ll2
+	nop
+	load r0
+	subi 1
+	store r0
+	brnz ll1	
+	nop
+
+	loadi 0
+	stind 0
+
+	loadi 0
+	loadhi 2
+	store r0
+ll3:
+	loadi 255
+	loadhi 255
+ll4:
+	subi 1
+	nop
+	brnz ll4
+	nop
+	load r0
+	subi 1
+	store r0
+	brnz ll3	
+	nop
+
+	loadi 1
+	stind 0
+
+	loadi 1
+	nop
+	brnz start
+

src/main/scala/leros/Leros.scala

@@ -87,7 +87,6 @@ class Leros(prog: String, size: Int = 32, memAddrWidth: Int = 8) extends LerosBa
   // connection to the external world (test)
   val exit = RegInit(false.B)
   val outReg = RegInit(0.U(32.W))
-  outReg := accu
   io.led := outReg
 
   switch(stateReg) {
@@ -118,6 +117,8 @@ class Leros(prog: String, size: Int = 32, memAddrWidth: Int = 8) extends LerosBa
       when(decReg.isStoreInd) {
         dataMem.io.wr := true.B
         alu.io.enaMask := 0.U
+        // TODO: this is a super quick hack to get the LED blinking
+        outReg := accu
       }
       when(decReg.isStoreIndB) {
         dataMem.io.wr := true.B

src/main/scala/leros/util/Assembler.scala

@@ -24,7 +24,7 @@ object Assembler {
         if (true)
           getProgramFix()
         else {
-          // FERTL does not like large vectors
+          // FIRRTL does not like large vectors
           val code = new Array[Int](200)
           for (i <- 0 until code.length) {
             code(i) = ((i << 8) + i+1) & 0xffff