1 files changed, 53 insertions, 0 deletions
diff --git a/test/chisel3/Risc.fir b/test/chisel3/Risc.fir
new file mode 100644
index 00000000..bd02bac3
--- /dev/null
+++ b/test/chisel3/Risc.fir
@@ -0,0 +1,53 @@
+; RUN: firrtl -i %s -o %s.flo -X flo -p c | tee %s.out | FileCheck %s
+;CHECK: Done!
+
+circuit Risc : 
+  module Risc : 
+    output out : UInt<32>
+    output valid : UInt<1>
+    input boot : UInt<1>
+    input isWr : UInt<1>
+    input wrAddr : UInt<8>
+    input wrData : UInt<32>
+    
+    mem file : UInt<32>[256]
+    mem code : UInt<32>[256]
+    reg pc : UInt<8>
+    on-reset pc := UInt<8>(0)
+    accessor inst = code[pc]
+    node op = bits(inst, 31, 24)
+    node rci = bits(inst, 23, 16)
+    node rai = bits(inst, 15, 8)
+    node rbi = bits(inst, 7, 0)
+    node T_51 = eq(rai, UInt<1>(0))
+    accessor T_52 = file[rai]
+    node ra = mux(T_51, UInt<1>(0), T_52)
+    node T_53 = eq(rbi, UInt<1>(0))
+    accessor T_54 = file[rbi]
+    node rb = mux(T_53, UInt<1>(0), T_54)
+    wire rc : UInt<32>
+    valid := UInt<1>(0)
+    out := UInt<1>(0)
+    rc := UInt<1>(0)
+    when isWr : 
+      accessor T_55 = code[wrAddr]
+      T_55 := wrData
+    else : when boot : pc := UInt<1>(0)
+      else : 
+        node T_56 = eq(UInt<1>(0), op)
+        when T_56 : 
+          node T_57 = add-wrap(ra, rb)
+          rc := T_57
+        node T_58 = eq(UInt<1>(1), op)
+        when T_58 : 
+          node T_59 = shl(rai, 8)
+          node T_60 = bit-or(T_59, rbi)
+          rc := T_60
+        out := rc
+        node T_61 = eq(rci, UInt<8>(255))
+        when T_61 : valid := UInt<1>(1)
+        else : 
+          accessor T_62 = file[rci]
+          T_62 := rc
+        node T_63 = add-wrap(pc, UInt<1>(1))
+        pc := T_63