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[/] [raptor64/] [trunk/] [rtl/] [verilog/] [Raptor64_bitfield.v] - Diff between revs 31 and 41
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Rev 41 |
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//
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//
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//
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//
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//=============================================================================
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//=============================================================================
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//
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//
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module Raptor64_bitfield(xIR, rolo, b, o, masko);
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module Raptor64_bitfield(xIR, rolo, b, o, masko);
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input [41:0] xIR;
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input [31:0] xIR;
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input [63:0] rolo;
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input [63:0] rolo;
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input [63:0] b;
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input [63:0] b;
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output [63:0] o;
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output [63:0] o;
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reg [63:0] o;
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reg [63:0] o;
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output [63:0] masko;
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output [63:0] masko;
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reg [63:0] o1;
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reg [63:0] o1;
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wire [6:0] xOpcode = xIR[41:35];
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wire [6:0] xOpcode = xIR[31:25];
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wire [4:0] xFunc5 = xIR[4:0];
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wire [4:0] xFunc5 = xIR[4:0];
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// generate mask
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// generate mask
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reg [63:0] mask;
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reg [63:0] mask;
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assign masko = mask;
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assign masko = mask;
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wire [5:0] mb = xIR[12:7];
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wire [5:0] mb = xIR[10:5];
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wire [5:0] me = xIR[18:13];
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wire [5:0] me = xIR[16:11];
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integer nn,n;
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integer nn,n;
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always @(mb or me or nn)
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always @(mb or me or nn)
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for (nn = 0; nn < 64; nn = nn + 1)
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for (nn = 0; nn < 64; nn = nn + 1)
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mask[nn] <= (nn >= mb) ^ (nn <= me) ^ (me >= mb);
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mask[nn] <= (nn >= mb) ^ (nn <= me) ^ (me >= mb);
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