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Joshua Wise's Git repositories - fpgaboy.git/blame_incremental - core/insn_add_sp_imm8.v
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| Commit | Line | Data |
|---|
| | 1 | `define INSN_ADD_SP_IMM8 9'b011101000 |
| | 2 | |
| | 3 | `ifdef EXECUTE |
| | 4 | `INSN_ADD_SP_IMM8: begin |
| | 5 | case (cycle) |
| | 6 | 0: begin |
| | 7 | `EXEC_INC_PC |
| | 8 | end |
| | 9 | 1: begin |
| | 10 | `EXEC_READ(`_PC) |
| | 11 | end |
| | 12 | 3: begin |
| | 13 | `EXEC_NEWCYCLE |
| | 14 | `EXEC_INC_PC |
| | 15 | end |
| | 16 | endcase |
| | 17 | end |
| | 18 | `endif |
| | 19 | |
| | 20 | `ifdef WRITEBACK |
| | 21 | `INSN_ADD_SP_IMM8: begin |
| | 22 | case (cycle) |
| | 23 | 2: `_SP <= `_SP + {rdata[7] ? 8'hFF : 8'h00, rdata}; |
| | 24 | endcase |
| | 25 | end |
| | 26 | `endif |
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