From 43829e0400f0a7aaccbb1ebefb44a38c41749e77 Mon Sep 17 00:00:00 2001
From: Alejandro Soto <alejandro@34project.org>
Date: Sun, 25 Sep 2022 23:21:32 -0600
Subject: Implement shifter decoding

---
 rtl/core/uarch.sv | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'rtl/core/uarch.sv')

diff --git a/rtl/core/uarch.sv b/rtl/core/uarch.sv
index 07b479d..c4dd961 100644
--- a/rtl/core/uarch.sv
+++ b/rtl/core/uarch.sv
@@ -56,4 +56,22 @@ typedef logic[4:0] psr_mode;
 `define MODE_UND 5'b11011
 `define MODE_SYS 5'b11111
 
+typedef struct packed
+{
+	alu_op     op;
+	reg_num    rn,
+	           rd,
+	           r_snd,
+	           r_shift;
+	logic      snd_shift_by_reg,
+	           snd_is_imm,
+	           shl,
+	           shr,
+	           ror,
+	           put_carry,
+	           sign_extend;
+	logic[7:0] imm;
+	logic[5:0] shift_imm;
+} alu_decode;
+
 `endif
-- 
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