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| author | Alejandro Soto <alejandro@34project.org> | 2022-12-07 19:18:04 -0600 |
|---|---|---|
| committer | Alejandro Soto <alejandro@34project.org> | 2022-12-07 19:51:41 -0600 |
| commit | c39552375661e495b344e8386649ade92a4d45b2 (patch) | |
| tree | 45623ce35964e43ae7d8804c1ef1c6dedb3ba7a1 /rtl/core/fetch/prefetch.sv | |
| parent | b1761b8eac5777c09723bbc8cd31cc05d8ec35ae (diff) | |
Implement single-stepping
Diffstat (limited to 'rtl/core/fetch/prefetch.sv')
| -rw-r--r-- | rtl/core/fetch/prefetch.sv | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/rtl/core/fetch/prefetch.sv b/rtl/core/fetch/prefetch.sv index 2f0a866..1b5a4c5 100644 --- a/rtl/core/fetch/prefetch.sv +++ b/rtl/core/fetch/prefetch.sv @@ -13,15 +13,17 @@ module core_prefetch output word insn, output ptr insn_pc, - next_pc, - output logic fetch + output logic fetch, + nop ); localparam SIZE = (1 << ORDER) - 1; + ptr next_pc; logic[31:0] prefetch[SIZE]; logic[ORDER - 1:0] valid; + assign nop = flush ? 1 : ~|valid; assign insn = flush ? `NOP : prefetch[0]; assign next_pc = ~stall & |valid ? insn_pc + 1 : insn_pc; assign fetch = !stall || ~&valid; |