From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sat, 16 May 2020 21:52:58 +0000 (+0100)
Subject: add arithmetic and logical operand tables
X-Git-Tag: convert-csv-opcode-to-binary~2652
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c2eae4aec22df101b0bfa19e66f37573b5caf762;p=libreriscv.git

add arithmetic and logical operand tables
---

diff --git a/3d_gpu/architecture/pipeline_operands.mdwn b/3d_gpu/architecture/pipeline_operands.mdwn
index 404e6feaa..21d47cd61 100644
--- a/3d_gpu/architecture/pipeline_operands.mdwn
+++ b/3d_gpu/architecture/pipeline_operands.mdwn
@@ -67,3 +67,36 @@ Output:
     op_rfid    NIA  xx   xx
     op_hrfid   NIA  xx   xx
 '''
+
+# Logical Register Pipeline
+
+Input:
+'''
+    64 - Port 1   64 - Port 2  1 - SO  1 - Carry
+    -----------   -----------  ------  ---------
+    RA/RS         RB           so      carry_in
+'''
+
+Output:
+'''
+    64 - Port 1   4 - Port 2   1 - SO  2 - Carry/Carry32 2 - OV/OV32
+    -----------   -----------  ------  ----------------- -----------
+    RC/RT         CR0          so      cr_o / cr32_o     ov_o / ov32_o
+'''
+
+# Arithmetic Register Pipeline
+
+Input:
+'''
+    64 - Port 1   64 - Port 2  1 - SO  1 - Carry
+    -----------   -----------  ------  ---------
+    RA            RB/immed     so      carry_in
+'''
+
+Output:
+'''
+    64 - Port 1   4 - Port 2   1 - SO  2 - Carry/Carry32 2 - OV/OV32
+    -----------   -----------  ------  ----------------- -----------
+    RC/RT         CR0          so      cr_o / cr32_o     ov_o / ov32_o
+'''
+