]>
Commit | Line | Data |
---|---|---|
1 | `ifdef EXECUTE | |
2 | `INSN_JR_imm,`INSN_JRCC_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 | if (opcode[5]) begin // i.e., JP cc,nn | |
11 | /* We need to check the condition code to bail out. */ | |
12 | case (opcode[4:3]) | |
13 | `INSN_cc_NZ: if (`_F[7]) `EXEC_NEWCYCLE | |
14 | `INSN_cc_Z: if (~`_F[7]) `EXEC_NEWCYCLE | |
15 | `INSN_cc_NC: if (`_F[4]) `EXEC_NEWCYCLE | |
16 | `INSN_cc_C: if (~`_F[4]) `EXEC_NEWCYCLE | |
17 | endcase | |
18 | end | |
19 | end | |
20 | 2: `EXEC_NEWCYCLE | |
21 | endcase | |
22 | end | |
23 | `endif | |
24 | ||
25 | `ifdef WRITEBACK | |
26 | `INSN_JR_imm,`INSN_JRCC_imm: begin | |
27 | case (cycle) | |
28 | 0: begin /* type F */ end | |
29 | 1: tmp <= rdata; | |
30 | 2: `_PC <= `_PC + {tmp[7]?8'hFF:8'h00,tmp}; | |
31 | endcase | |
32 | end | |
33 | `endif |