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Add verbosity to issue when it stalls an instruction.
author
Joshua Wise
<joshua@rebirth.joshuawise.com>
Sat, 27 Dec 2008 10:38:49 +0000
(
05:38
-0500)
committer
Joshua Wise
<joshua@rebirth.joshuawise.com>
Sat, 27 Dec 2008 10:38:49 +0000
(
05:38
-0500)
Issue.v
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diff --git
a/Issue.v
b/Issue.v
index
03707d9
..
2df5bfa
100644
(file)
--- a/
Issue.v
+++ b/
Issue.v
@@
-287,6
+287,11
@@
module Issue(
cpsr_inflight[1] <= (waiting || inbubble || !condition_met) ? 0 : def_cpsr;
regs_inflight[0] <= regs_inflight[1];
regs_inflight[1] <= (waiting || inbubble || !condition_met) ? 0 : def_regs;
+
+ if (waiting)
+ begin
+ $display("ISSUE: Stalling instruction %08x because %d/%d", insn, waiting_cpsr, waiting_regs);
+ end
outbubble <= inbubble | waiting | !condition_met;
outpc <= inpc;
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