Github_Repos/cvw
1
0
Fork 1
mirror of https://github.com/openhwgroup/cvw synced 2025-02-02 17:55:19 +00:00
Code Issues Packages Projects Releases Wiki Activity

Book updates.

Browse Source
This commit is contained in:
Ross Thompson 2023-03-14 13:09:50 -05:00
parent 3cae6ca90f
commit 3d37d2769a
1 changed files with 9 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/hazard/hazard.sv
View File

@ -43,7 +43,7 @@ module hazard (
);
logic StallFCause, StallDCause, StallECause, StallMCause, StallWCause;
logic FirstUnstalledD, FirstUnstalledE, FirstUnstalledM, FirstUnstalledW;
logic LatestUnstalledD, LatestUnstalledE, LatestUnstalledM, LatestUnstalledW;
logic FlushDCause, FlushECause, FlushMCause, FlushWCause;
// stalls and flushes
@ -95,14 +95,14 @@ module hazard (
assign #1 StallW = StallWCause;
// detect the first stage that is not stalled
assign FirstUnstalledD = ~StallD & StallF;
assign FirstUnstalledE = ~StallE & StallD;
assign FirstUnstalledM = ~StallM & StallE;
assign FirstUnstalledW = ~StallW & StallM;
assign LatestUnstalledD = ~StallD & StallF;
assign LatestUnstalledE = ~StallE & StallD;
assign LatestUnstalledM = ~StallM & StallE;
assign LatestUnstalledW = ~StallW & StallM;
// Each stage flushes if the previous stage is the last one stalled (for cause) or the system has reason to flush
assign #1 FlushD = FirstUnstalledD | FlushDCause;
assign #1 FlushE = FirstUnstalledE | FlushECause;
assign #1 FlushM = FirstUnstalledM | FlushMCause;
assign #1 FlushW = FirstUnstalledW | FlushWCause;
assign #1 FlushD = LatestUnstalledD | FlushDCause;
assign #1 FlushE = LatestUnstalledE | FlushECause;
assign #1 FlushM = LatestUnstalledM | FlushMCause;
assign #1 FlushW = LatestUnstalledW | FlushWCause;
endmodule