add cpuFetchStage instance

[rv32.git] / cpudefs.py

diff --git a/cpudefs.py b/cpudefs.py
index 9a58cffa6feead8f7657502f94b6ccd9e78c1d2c..4edab9706e8dba5dd2b8b54fac6e41a65ce1c0e2 100644 (file)
--- a/cpudefs.py
+++ b/cpudefs.py
@@ -42,16 +42,18 @@ fetch_output_state_trap = Constant(0x2, fetch_output_state)
 
 decode_action = 12
 
-decode_action_trap_illegal_instruction = Constant(0x1, decode_action)
-decode_action_load = Constant(0x2, decode_action)
-decode_action_fence = Constant(0x4, decode_action)
-decode_action_fence_i = Constant(0x8, decode_action)
-decode_action_op_op_imm = Constant(0x10, decode_action)
-decode_action_lui_auipc = Constant(0x20, decode_action)
-decode_action_store = Constant(0x40, decode_action)
-decode_action_branch = Constant(0x80, decode_action)
-decode_action_jalr = Constant(0x100, decode_action)
-decode_action_jal = Constant(0x200, decode_action)
-decode_action_trap_ecall_ebreak = Constant(0x400, decode_action)
-decode_action_csr = Constant(0x800, decode_action)
-
+class DA:
+    """ Decode action constants
+    """
+    trap_illegal_instruction = Constant(0x1, decode_action)
+    load = Constant(0x2, decode_action)
+    fence = Constant(0x4, decode_action)
+    fence_i = Constant(0x8, decode_action)
+    op_op_imm = Constant(0x10, decode_action)
+    lui_auipc = Constant(0x20, decode_action)
+    store = Constant(0x40, decode_action)
+    branch = Constant(0x80, decode_action)
+    jalr = Constant(0x100, decode_action)
+    jal = Constant(0x200, decode_action)
+    trap_ecall_ebreak = Constant(0x400, decode_action)
+    csr = Constant(0x800, decode_action)