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Commit | Line | Data |
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1 | `ifdef EXECUTE | |
2 | `INSN_CALL,`INSN_CALLCC: 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]) // i.e., is callcc | |
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 | 3: `EXEC_WRITE(`_SP - 1, `_PCH) | |
24 | 4: `EXEC_WRITE(`_SP - 2, `_PCL) | |
25 | 5: `EXEC_NEWCYCLE | |
26 | endcase | |
27 | end | |
28 | `endif | |
29 | ||
30 | `ifdef WRITEBACK | |
31 | `INSN_CALL,`INSN_CALLCC: begin | |
32 | case (cycle) | |
33 | 0: begin /* type F */ end | |
34 | 1: tmp <= rdata; // tmp contains newpcl | |
35 | 2: tmp2 <= rdata; // tmp2 contains newpch | |
36 | 3: begin /* type F */ end | |
37 | 4: `_PCH <= tmp2; | |
38 | 5: begin | |
39 | `_PCL <= tmp; | |
40 | `_SP <= `_SP - 2; | |
41 | end | |
42 | endcase | |
43 | end | |
44 | `endif |