From: Joshua Wise Date: Fri, 28 Mar 2008 06:13:07 +0000 (-0400) Subject: Use the new shnasto X-Git-Tag: PRE_ROLLBACK X-Git-Url: http://git.joshuawise.com/mandelfpga.git/commitdiff_plain/7af9813c1d9279fad20ebad595348c8a665c4967?hp=ec33b70849f3da7dfbf2ccc0ef434ea1a63f9041 Use the new shnasto --- diff --git a/Main.v b/Main.v index a5dc200..0eba781 100644 --- a/Main.v +++ b/Main.v @@ -131,8 +131,36 @@ module MandelUnit( Multiplier i2m(clk, i[12:0], i[12:0], isign, isign, i2[12:0], i2sign, i2[13]); Multiplier rim(clk, r[12:0], i[12:0], rsign, isign, ri[13:1], risign, ri[14]); - assign bigsum = r2[12:0] + i2[12:0]; - assign bigsum_ovf = bigsum[13] | r2[13] | i2[13]; + //assign bigsum = r2[12:0] + i2[12:0]; + //wire shnasto = bigsum[13]; + wire shnasto = // o shi + ((r[12] & i[12]) | + ((r[12] ^ i[12]) & + ((r[11] & i[11]) | + ((r[11] ^ i[11]) & + ((r[10] & i[10]) | + ((r[10] ^ i[10]) & + ((r[ 9] & i[ 9]) | + ((r[ 9] ^ i[ 9]) & + ((r[ 8] & i[ 8]) | + ((r[ 8] ^ i[ 8]) & + ((r[ 7] & i[ 7]) | + ((r[ 7] ^ i[ 7]) & + ((r[ 6] & i[ 6]) | + ((r[ 6] ^ i[ 6]) & + ((r[ 5] & i[ 5]) | + ((r[ 5] ^ i[ 5]) & + ((r[ 4] & i[ 4]) | + ((r[ 4] ^ i[ 4]) & + ((r[ 3] & i[ 3]) | + ((r[ 3] ^ i[ 3]) & + ((r[ 2] & i[ 2]) | + ((r[ 2] ^ i[ 2]) & + ((r[ 1] & i[ 1]) | + ((r[ 1] ^ i[ 1]) & + (r[ 0] & i[ 0]) + )))))))))))))))))))))))); + assign bigsum_ovf = shnasto | r2[13] | i2[13]; assign twocdiff = r2 - i2; assign diff = twocdiff[15] ? -twocdiff : twocdiff;