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[/] [thor/] [trunk/] [rtl/] [verilog/] [Thor_execute_combo.v] - Diff between revs 37 and 42

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Rev 37 Rev 42
Line 123... Line 123...
        alu0_misspc <= alu0_argA + alu0_argI;
        alu0_misspc <= alu0_argA + alu0_argI;
    `LOOP,`SYNC:
    `LOOP,`SYNC:
        alu0_misspc <= alu0_pc + alu0_insnsz;
        alu0_misspc <= alu0_pc + alu0_insnsz;
    `RTS:
    `RTS:
        alu0_misspc <= alu0_argA + alu0_fn[3:0];
        alu0_misspc <= alu0_argA + alu0_fn[3:0];
    `SYS,`INT:
    `SYS,`INT,`RTF,`JSF:
        alu0_misspc <= {1'b1,alu0_argA + alu0_argI};
        alu0_misspc <= {1'b1,alu0_argA + alu0_argI};
    default:
    default:
        alu0_misspc <= (alu0_bt ? alu0_pc + alu0_insnsz : alu0_pc + alu0_insnsz + alu0_argI);
        alu0_misspc <= (alu0_bt ? alu0_pc + alu0_insnsz : alu0_pc + alu0_insnsz + alu0_argI);
    endcase
    endcase
 
 
Line 137... Line 137...
        alu1_misspc <= alu1_argA + alu1_argI;
        alu1_misspc <= alu1_argA + alu1_argI;
    `LOOP,`SYNC:
    `LOOP,`SYNC:
        alu1_misspc <= alu1_pc + alu1_insnsz;
        alu1_misspc <= alu1_pc + alu1_insnsz;
    `RTS:
    `RTS:
        alu1_misspc <= alu1_argA + alu1_fn[3:0];
        alu1_misspc <= alu1_argA + alu1_fn[3:0];
    `SYS,`INT:
    `SYS,`INT,`RTF,`JSF:
        alu1_misspc <= {1'b1,alu1_argA + alu1_argI};
        alu1_misspc <= {1'b1,alu1_argA + alu1_argI};
    default:
    default:
        alu1_misspc <= (alu1_bt ? alu1_pc + alu1_insnsz : alu1_pc + alu1_insnsz + alu1_argI);
        alu1_misspc <= (alu1_bt ? alu1_pc + alu1_insnsz : alu1_pc + alu1_insnsz + alu1_argI);
    endcase
    endcase
 
 
Line 151... Line 151...
    2'd2:   jmpi_misspc <= (DBW==32) ? dram_bus[31:0] : {dram0_misspc[63:32],dram_bus[31:0]};
    2'd2:   jmpi_misspc <= (DBW==32) ? dram_bus[31:0] : {dram0_misspc[63:32],dram_bus[31:0]};
    2'd3:   jmpi_misspc <= dram_bus[DBW-1:0];
    2'd3:   jmpi_misspc <= dram_bus[DBW-1:0];
    default:    jmpi_misspc <= 32'h00000FA0;    // unimplemented instruction vector 
    default:    jmpi_misspc <= 32'h00000FA0;    // unimplemented instruction vector 
    endcase
    endcase
 
 
assign  alu0_exc =  (fnIsKMOnly(alu0_op) && !km && alu0_cmt) ? `EXC_PRIV :
wire dbze0 = alu0_op==`DIVI || alu0_op==`MODI || (alu0_op==`RR && (alu0_fn==`DIV || alu0_fn==`MOD));
                    (alu0_done && alu0_divByZero && alu0_cmt) ? `EXC_DBZ :
wire dbze1 = alu1_op==`DIVI || alu1_op==`MODI || (alu1_op==`RR && (alu1_fn==`DIV || alu1_fn==`MOD));
                    ((alu0_op==`CHKI||(alu0_op==`RR && alu0_fn==`CHK)) && !alu0_out && alu0_cmt) ? `EXC_CHK :
 
                    `EXC_NONE;
assign  alu0_exc =  (fnIsKMOnly(alu0_op) && !km && alu0_cmt) ? `EX_PRIV :
 
                    (alu0_done && dbze0 && alu0_divByZero && alu0_cmt) ? `EX_DBZ :
assign  alu1_exc =  (fnIsKMOnly(alu1_op) && !km && alu1_cmt) ? `EXC_PRIV :
                    ((alu0_op==`CHKXI||(alu0_op==`RR && alu0_fn==`CHKX)) && !alu0_out && alu0_cmt) ? `EX_CHK :
                    (alu1_done && alu1_divByZero && alu1_cmt) ? `EXC_DBZ :
                    (((alu0_op==`MTSPR && alu0_fn==0)|| alu0_op==`LDIS) && iqentry_tgt[alu0_id[2:0]][7:3]==5'h6) ?
                    ((alu1_op==`CHKI ||(alu1_op==`RR && alu1_fn==`CHK)) && !alu1_out && alu1_cmt) ? `EXC_CHK :
                      {6'h20,iqentry_tgt[alu0_id[2:0]][2:0]} :
                    `EXC_NONE;
                      `EX_NONE;
 
 
 
assign  alu1_exc =  (fnIsKMOnly(alu1_op) && !km && alu1_cmt) ? `EX_PRIV :
 
                    (alu1_done && dbze1 && alu1_divByZero && alu1_cmt) ? `EX_DBZ :
 
                    ((alu1_op==`CHKXI ||(alu1_op==`RR && alu1_fn==`CHKX)) && !alu1_out && alu1_cmt) ? `EX_CHK :
 
                    (((alu1_op==`MTSPR && alu1_fn==0)|| alu1_op==`LDIS) && iqentry_tgt[alu1_id[2:0]][7:3]==5'h6) ?
 
                      {6'h20,iqentry_tgt[alu1_id[2:0]][2:0]} :
 
                      `EX_NONE;
 
 
assign alu0_branchmiss = alu0_dataready &&
assign alu0_branchmiss = alu0_dataready &&
                   ((fnIsBranch(alu0_op))  ? ((alu0_cmt && !alu0_bt) || (!alu0_cmt && alu0_bt))
                   ((fnIsBranch(alu0_op))  ? ((alu0_cmt && !alu0_bt) || (!alu0_cmt && alu0_bt))
                  : !alu0_cmt ? (alu0_op==`LOOP)
                  : !alu0_cmt ? (alu0_op==`LOOP)
                  : (alu0_cmt && (alu0_op==`SYNC || alu0_op == `JSR || alu0_op == `JSRS || alu0_op == `JSRZ ||
                  : (alu0_cmt && (alu0_op==`SYNC || alu0_op == `JSR || alu0_op == `JSRS || alu0_op == `JSRZ ||
                     alu0_op==`SYS || alu0_op==`INT ||
                     alu0_op==`SYS || alu0_op==`INT || alu0_op==`RTF || alu0_op==`JSF ||
                  alu0_op==`RTS || alu0_op==`RTS2 || alu0_op==`RTD || alu0_op == `RTE || alu0_op==`RTI || ((alu0_op==`LOOP) && (alu0_argA == 64'd0)))));
                  alu0_op==`RTS || alu0_op==`RTS2 || alu0_op==`RTD || alu0_op == `RTE || alu0_op==`RTI || ((alu0_op==`LOOP) && (alu0_argA == 64'd0)))));
 
 
assign alu1_branchmiss = alu1_dataready &&
assign alu1_branchmiss = alu1_dataready &&
                   ((fnIsBranch(alu1_op))  ? ((alu1_cmt && !alu1_bt) || (!alu1_cmt && alu1_bt))
                   ((fnIsBranch(alu1_op))  ? ((alu1_cmt && !alu1_bt) || (!alu1_cmt && alu1_bt))
                  : !alu1_cmt ? (alu1_op==`LOOP)
                  : !alu1_cmt ? (alu1_op==`LOOP)
                  : (alu1_cmt && (alu1_op==`SYNC || alu1_op == `JSR || alu1_op == `JSRS || alu1_op == `JSRZ ||
                  : (alu1_cmt && (alu1_op==`SYNC || alu1_op == `JSR || alu1_op == `JSRS || alu1_op == `JSRZ ||
                     alu1_op==`SYS || alu1_op==`INT ||
                     alu1_op==`SYS || alu1_op==`INT || alu1_op==`RTF || alu1_op==`JSF ||
                  alu1_op==`RTS || alu1_op==`RTS2 || alu1_op==`RTD || alu1_op == `RTE || alu1_op==`RTI || ((alu1_op==`LOOP) && (alu1_argA == 64'd0)))));
                  alu1_op==`RTS || alu1_op==`RTS2 || alu1_op==`RTD || alu1_op == `RTE || alu1_op==`RTI || ((alu1_op==`LOOP) && (alu1_argA == 64'd0)))));
 
 
assign  branchmiss = (alu0_branchmiss | alu1_branchmiss | mem_stringmiss | jmpi_miss),
assign  branchmiss = (alu0_branchmiss | alu1_branchmiss | mem_stringmiss | jmpi_miss),
        misspc = (jmpi_miss ? jmpi_misspc : mem_stringmiss ? dram0_misspc : alu0_branchmiss ? alu0_misspc : alu1_misspc),
        misspc = (jmpi_miss ? jmpi_misspc : mem_stringmiss ? dram0_misspc : alu0_branchmiss ? alu0_misspc : alu1_misspc),
        missid = (jmpi_miss ? dram0_id : mem_stringmiss ? dram0_id : alu0_branchmiss ? alu0_sourceid : alu1_sourceid);
        missid = (jmpi_miss ? dram0_id : mem_stringmiss ? dram0_id : alu0_branchmiss ? alu0_sourceid : alu1_sourceid);
Line 241... Line 248...
        default:       fp0_done = 1'b1;
        default:       fp0_done = 1'b1;
        endcase
        endcase
end
end
 
 
assign fp0_cmt = fnPredicate(fp0_pred, fp0_cond);
assign fp0_cmt = fnPredicate(fp0_pred, fp0_cond);
assign fp0_exc = fp0_exception ? 8'd242 : 8'd0;
assign fp0_exc = fp0_exception ? `EX_FP : 9'd0;
 
 
assign  fp0_v = fp0_dataready;
assign  fp0_v = fp0_dataready;
assign  fp0_id = fp0_sourceid;
assign  fp0_id = fp0_sourceid;
`endif
`endif
 
 

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