2019-02-10 13:39:56 +01:00
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/******************************************************************************
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*1[678C] D[01]=D[01][+-] (n+1)
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*
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*
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*/
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`DEC_PTR_MATH: begin
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2019-02-11 15:36:51 +01:00
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field <= `T_FIELD_A;
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alu_first <= 0;
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alu_last <= 4;
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alu_const <= nb_in;
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next_cycle <= `BUSCMD_NOP;
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decstate <= `DEC_ALU_INIT;
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alu_return <= `DEC_START;
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2019-02-10 13:39:56 +01:00
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`ifdef SIM
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2019-02-11 15:36:51 +01:00
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$display("%5h D%b=D%b%s\t%2d",
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inst_start_PC, alu_reg_dest[0], alu_reg_src1[0],
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((alu_op==`ALU_OP_SUB_CST)?"-":"+"), nb_in+1);
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2019-02-10 13:39:56 +01:00
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`endif
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end
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