From: Clifford Wolf <clifford@clifford.at>
Date: Tue, 16 Sep 2014 06:19:35 +0000 (+0200)
Subject: Fixed $macc simlib model for zero-config
X-Git-Tag: yosys-0.4~123
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6644e27cd4112070eca0958c19b71e97ba29a80d;p=yosys.git

Fixed $macc simlib model for zero-config
---

diff --git a/techlibs/common/simlib.v b/techlibs/common/simlib.v
index 0ad8d14b2..2d8088adb 100644
--- a/techlibs/common/simlib.v
+++ b/techlibs/common/simlib.v
@@ -820,7 +820,7 @@ function integer my_clog2;
 	end
 endfunction
 
-localparam integer num_bits = CONFIG[3:0];
+localparam integer num_bits = CONFIG[3:0] > 0 ? CONFIG[3:0] : 1;
 localparam integer num_ports = (CONFIG_WIDTH-4) / (2 + 2*num_bits);
 localparam integer num_abits = my_clog2(A_WIDTH) > 0 ? my_clog2(A_WIDTH) : 1;