| | 1 | `define INSN_LD_NN_SP 9'b000001000 |
| | 2 | |
| | 3 | `ifdef EXECUTE |
| | 4 | `INSN_LD_NN_SP: begin |
| | 5 | case (cycle) |
| | 6 | 0: begin |
| | 7 | `EXEC_INC_PC |
| | 8 | `EXEC_READ(`_PC + 16'h0001) |
| | 9 | end |
| | 10 | 1: begin |
| | 11 | `EXEC_INC_PC |
| | 12 | `EXEC_READ(`_PC + 16'h0001) |
| | 13 | end |
| | 14 | 2: begin |
| | 15 | `EXEC_WRITE(({rdata, tmp}), `_SPL) |
| | 16 | end |
| | 17 | 3: begin |
| | 18 | `EXEC_WRITE(({tmp, tmp2}), `_SPH) |
| | 19 | end |
| | 20 | 4: begin |
| | 21 | `EXEC_NEWCYCLE |
| | 22 | `EXEC_INC_PC |
| | 23 | end |
| | 24 | endcase |
| | 25 | end |
| | 26 | `endif |
| | 27 | |
| | 28 | `ifdef WRITEBACK |
| | 29 | `INSN_LD_NN_SP: begin |
| | 30 | case (cycle) |
| | 31 | 0: begin end |
| | 32 | 1: tmp <= rdata; |
| | 33 | 2: {tmp, tmp2} <= {rdata, tmp} + 1; |
| | 34 | 3: begin end |
| | 35 | 4: begin end |
| | 36 | endcase |
| | 37 | end |
| | 38 | `endif |
| | 39 | |
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