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added handler for delta to handle delta being all 1's

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This commit is contained in:
Akilan Selvacoumar
2026-03-19 13:22:01 +00:00
parent 34e84f2926
commit 3fd9a03aa6
5 changed files with 2147 additions and 2591 deletions
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3101
builds/RV64ACDFIMSUxCHERI_Toooba_bluesim/test.txt
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1621
builds/RV64ACDFIMSUxCHERI_Toooba_bluesim/test1.txt Normal file
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3
src_Core/CPU/Core.bsv
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@@ -918,7 +918,7 @@ module mkCore#(CoreId coreId)(Core);
// incr cycle count
(* fire_when_enabled, no_implicit_conditions *)
rule incCycleCnt(doStats);
$display("calling cycle");
// $display("calling cycle");
cycleCnt.incr(1);
endrule
@@ -963,7 +963,6 @@ module mkCore#(CoreId coreId)(Core);
// broadcast whether we should collect data
rule broadcastDoStats;
let stats = csrf.doPerfStats;
$display("[stats] enabled %0d", csrf.doPerfStats);
doStats <= stats;
iMem.perf.setStatus(stats);
dMem.perf.setStatus(stats);

11
src_Core/RISCY_OOO/procs/RV64G_OOO/MemExePipeline.bsv
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@@ -653,8 +653,15 @@ module mkMemExePipeline#(MemExeInput inIfc)(MemExePipeline);
`endif
// Test delta value read from the pointer
Bit#(25) delta = decodeDelta(x.vaddr);
$display("Decoded delta = %0d", delta);
x.vaddr = encodeDelta(x.vaddr, 0);
$display("Decoded delta from register = %0d", delta);
// 33554431 is 2^25 - 1 (all ones)
if (delta == 33554431) begin
delta = 0;
end else begin
x.vaddr = encodeDelta(x.vaddr, 0);
end
// x.vaddr = encodeDelta(x.vaddr, 0);
// x.vaddr = (x.vaddr >> 25) << 25;
// x.vaddr = (x.vaddr >> 25) << 25;

2
src_Core/RISCY_OOO/procs/lib/Exec.bsv
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@@ -244,7 +244,7 @@ function CapPipe capModify(CapPipe a, CapPipe b, CapModifyFunc func);
// TODO: Delta handler function
CapPipe res = (case(func) matches
tagged ModifyOffset .offsetOp :
//modifyOffset(a_mut, getAddr(b), offsetOp == IncOffset).value;
// modifyOffset(a_mut, getAddr(b), offsetOp == IncOffset).value;
// To test this
encodeDelta(a_mut, getAddr(b));
tagged SetBounds .boundsOp :