hp-saturn/opcodes/1x.v

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Coq
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/******************************************************************************
* 1X
*
*
*/
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`include "decstates.v"
`DEC_1X: begin
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case (nb_in)
4'h3: decstate <= `DEC_13X;
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4'h4: decstate <= `DEC_14X;
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4'h5: decstate <= `DEC_15X;
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4'hA: decstate <= `DEC_D0_EQ_4N;
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4'hB: decstate <= `DEC_D0_EQ_5N;
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4'hE: decstate <= `DEC_D1_EQ_4N;
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4'hF: decstate <= `DEC_D1_EQ_5N;
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default: begin
$display("ERROR : DEC_1X");
decode_error <= 1;
end
endcase
end