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[/] [ssbcc/] [trunk/] [core/] [9x8/] [display_opcode.v] - Blame information for rev 2

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Line No. Rev Author Line
1 2 sinclairrf
// short, human-readable versions of s_opcode suitable for waveform viewers
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reg [3*8-1:0] s_opcode_name = "nop";
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always @ (posedge i_clk)
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  casez (s_opcode)
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    9'b00_0000_000 : s_opcode_name = "nop";
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    9'b00_0000_001 : s_opcode_name = "<<0";
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    9'b00_0000_010 : s_opcode_name = "<<1";
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    9'b00_0000_011 : s_opcode_name = "<<m";
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    9'b00_0000_100 : s_opcode_name = "0>>";
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    9'b00_0000_101 : s_opcode_name = "1>>";
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    9'b00_0000_110 : s_opcode_name = "m>>";
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    9'b00_0000_111 : s_opcode_name = "l>>";
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    9'b00_0001_000 : s_opcode_name = "dup";
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    9'b00_0001_001 : s_opcode_name = "r@ ";
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    9'b00_0001_010 : s_opcode_name = "ovr";
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    9'b00_0010_010 : s_opcode_name = "swp";
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    9'b00_0011_000 : s_opcode_name = "+  ";
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    9'b00_0011_100 : s_opcode_name = "-  ";
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    9'b00_0100_000 : s_opcode_name = "0= ";
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    9'b00_0100_001 : s_opcode_name = "0<>";
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    9'b00_0100_010 : s_opcode_name = "-1=";
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    9'b00_0100_011 : s_opcode_name = "-1#";
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    9'b00_0101_000 : s_opcode_name = "rtn";
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    9'b00_0110_000 : s_opcode_name = "inp";
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    9'b00_0111_000 : s_opcode_name = "out";
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    9'b00_1000_000 : s_opcode_name = ">r ";
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    9'b00_1001_001 : s_opcode_name = "r> ";
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    9'b00_1010_000 : s_opcode_name = "&  ";
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    9'b00_1010_001 : s_opcode_name = "or ";
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    9'b00_1010_010 : s_opcode_name = "^  ";
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    9'b00_1010_011 : s_opcode_name = "nip";
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    9'b00_1010_100 : s_opcode_name = "drp";
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    9'b00_1011_000 : s_opcode_name = "1+ ";
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    9'b00_1011_100 : s_opcode_name = "1- ";
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    9'b00_1100_000 : s_opcode_name = "s0 ";
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    9'b00_1100_001 : s_opcode_name = "s1 ";
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    9'b00_1100_010 : s_opcode_name = "s2 ";
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    9'b00_1100_011 : s_opcode_name = "s3 ";
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    9'b00_1101_000 : s_opcode_name = "@0 ";
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    9'b00_1101_001 : s_opcode_name = "@1 ";
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    9'b00_1101_010 : s_opcode_name = "@2 ";
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    9'b00_1101_011 : s_opcode_name = "@3 ";
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    9'b00_1110_000 : s_opcode_name = "s0+";
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    9'b00_1110_001 : s_opcode_name = "s1+";
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    9'b00_1110_010 : s_opcode_name = "s2+";
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    9'b00_1110_011 : s_opcode_name = "s3+";
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    9'b00_1110_100 : s_opcode_name = "s0-";
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    9'b00_1110_101 : s_opcode_name = "s1-";
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    9'b00_1110_110 : s_opcode_name = "s2-";
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    9'b00_1110_111 : s_opcode_name = "s3-";
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    9'b00_1111_000 : s_opcode_name = "@0+";
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    9'b00_1111_001 : s_opcode_name = "@1+";
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    9'b00_1111_010 : s_opcode_name = "@2+";
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    9'b00_1111_011 : s_opcode_name = "@3+";
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    9'b00_1111_100 : s_opcode_name = "@0-";
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    9'b00_1111_101 : s_opcode_name = "@1-";
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    9'b00_1111_110 : s_opcode_name = "@2-";
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    9'b00_1111_111 : s_opcode_name = "@3-";
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    9'b0_100_????? : s_opcode_name = "jp ";
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    9'b0_110_????? : s_opcode_name = "cl ";
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    9'b0_101_????? : s_opcode_name = "jpc";
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    9'b0_111_????? : s_opcode_name = "clc";
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    9'b1_????_???? : s_opcode_name = "psh";
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           default : s_opcode_name = "INV";
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  endcase

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