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Commit | Line | Data |
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1 | `define INSN_LD_reg_imm8 9'b000xxx110 | |
2 | ||
3 | `ifdef EXECUTE | |
4 | `INSN_LD_reg_imm8: begin | |
5 | case (cycle) | |
6 | 0: begin | |
7 | `EXEC_INC_PC | |
8 | `EXEC_READ(`_PC + 1) | |
9 | end | |
10 | 1: begin | |
11 | `EXEC_INC_PC | |
12 | if (opcode[5:3] == `INSN_reg_dHL) | |
13 | `EXEC_WRITE(`_HL, rdata) | |
14 | else | |
15 | `EXEC_NEWCYCLE | |
16 | end | |
17 | 2: `EXEC_NEWCYCLE | |
18 | endcase | |
19 | end | |
20 | `endif | |
21 | ||
22 | `ifdef WRITEBACK | |
23 | `INSN_LD_reg_imm8: | |
24 | case (cycle) | |
25 | 0: begin end | |
26 | 1: case (opcode[5:3]) | |
27 | `INSN_reg_A: begin `_A <= rdata; end | |
28 | `INSN_reg_B: begin `_B <= rdata; end | |
29 | `INSN_reg_C: begin `_C <= rdata; end | |
30 | `INSN_reg_D: begin `_D <= rdata; end | |
31 | `INSN_reg_E: begin `_E <= rdata; end | |
32 | `INSN_reg_H: begin `_H <= rdata; end | |
33 | `INSN_reg_L: begin `_L <= rdata; end | |
34 | `INSN_reg_dHL: begin /* Go off to cycle 2 */ end | |
35 | endcase | |
36 | 2: begin end | |
37 | endcase | |
38 | `endif |