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[/] [thor/] [trunk/] [FT64v5/] [rtl/] [common/] [FT64_InsLength.v] - Diff between revs 56 and 57
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| Rev 56 |
Rev 57 |
| Line 23... |
Line 23... |
// Computes the length of an instruction.
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// Computes the length of an instruction.
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// There are also other places in code where the length is determined
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// There are also other places in code where the length is determined
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// without the use of this module.
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// without the use of this module.
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// ============================================================================
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// ============================================================================
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//
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//
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`include "FT64_config.vh"
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`include "FT64_defines.vh"
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`include "FT64_defines.vh"
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module FT64_InsLength(ins, len);
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module FT64_InsLength(ins, len);
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input [47:0] ins;
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input [47:0] ins;
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output reg [2:0] len;
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output reg [2:0] len;
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always @*
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always @*
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`ifdef SUPPORT_DCI
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if (ins[`INSTRUCTION_OP]==`CMPRSSD)
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if (ins[`INSTRUCTION_OP]==`CMPRSSD)
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len <= 3'd2;
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len <= 3'd2;
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else
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else
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`endif
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case(ins[7:6])
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case(ins[7:6])
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2'd0: len <= 3'd4;
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2'd0: len <= 3'd4;
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2'd1: len <= 3'd6;
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2'd1: len <= 3'd6;
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default: len <= 3'd2;
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default: len <= 3'd2;
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endcase
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endcase
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