From 83b7d1c9b7dce4884c82937f605777f2294045d9 Mon Sep 17 00:00:00 2001 From: Graham Edgecombe Date: Sun, 3 Dec 2017 17:55:39 +0000 Subject: [PATCH] Add 'from stage' comments if inputs are not from the previous stage --- rv32.sv | 4 ++-- rv32_decode.sv | 4 +++- rv32_fetch.sv | 4 ++-- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/rv32.sv b/rv32.sv index 8f9df00..abf162d 100644 --- a/rv32.sv +++ b/rv32.sv @@ -18,10 +18,10 @@ module rv32 ( rv32_fetch fetch ( .clk(clk), - /* control in */ + /* control in (from mem) */ .branch_taken_in(mem_branch_taken), - /* data in */ + /* data in (from mem) */ .branch_pc_in(mem_branch_pc), /* data out */ diff --git a/rv32_decode.sv b/rv32_decode.sv index 5ee51a9..54029fe 100644 --- a/rv32_decode.sv +++ b/rv32_decode.sv @@ -10,13 +10,15 @@ module rv32_decode ( input clk, - /* control in */ + /* control in (from writeback) */ input [4:0] rd_in, input rd_writeback_in, /* data in */ input [31:0] pc_in, input [31:0] instr_in, + + /* data in (from writeback) */ input [31:0] rd_value_in, /* control out */ diff --git a/rv32_fetch.sv b/rv32_fetch.sv index a6cb032..3813087 100644 --- a/rv32_fetch.sv +++ b/rv32_fetch.sv @@ -4,10 +4,10 @@ module rv32_fetch ( input clk, - /* control in */ + /* control in (from mem) */ input branch_taken_in, - /* data in */ + /* data in (from mem) */ input [31:0] branch_pc_in, /* data out */