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Commit | Line | Data |
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1 | `ifdef EXECUTE | |
2 | `INSN_JP_imm,`INSN_JPCC_imm: begin | |
3 | case (cycle) | |
4 | 0: begin | |
5 | `EXEC_INC_PC | |
6 | `EXEC_READ(`_PC + 1) | |
7 | end | |
8 | 1: begin | |
9 | `EXEC_INC_PC | |
10 | `EXEC_READ(`_PC + 1) | |
11 | end | |
12 | 2: begin | |
13 | `EXEC_INC_PC | |
14 | if (!opcode[0]) begin // i.e., JP cc,nn | |
15 | /* We need to check the condition code to bail out. */ | |
16 | case (opcode[4:3]) | |
17 | `INSN_cc_NZ: if (`_F[7]) `EXEC_NEWCYCLE | |
18 | `INSN_cc_Z: if (~`_F[7]) `EXEC_NEWCYCLE | |
19 | `INSN_cc_NC: if (`_F[4]) `EXEC_NEWCYCLE | |
20 | `INSN_cc_C: if (~`_F[4]) `EXEC_NEWCYCLE | |
21 | endcase | |
22 | end | |
23 | end | |
24 | 3: `EXEC_NEWCYCLE | |
25 | endcase | |
26 | end | |
27 | `endif | |
28 | ||
29 | `ifdef WRITEBACK | |
30 | `INSN_JP_imm,`INSN_JPCC_imm: begin | |
31 | case (cycle) | |
32 | 0: begin /* type F */ end | |
33 | 1: tmp <= rdata; // tmp contains newpcl | |
34 | 2: tmp2 <= rdata; // tmp2 contains newpch | |
35 | 3: `_PC <= {tmp2,tmp}; | |
36 | endcase | |
37 | end | |
38 | `endif |