Fix misa bug

2021-04-22 00:59:07 -04:00 · 2021-04-22 00:59:07 -04:00 · fb8f244dab
commit fb8f244dab
parent e336fbd108
1 changed files with 1 additions and 1 deletions
--- a/wally-pipelined/src/privileged/csrm.sv
+++ b/wally-pipelined/src/privileged/csrm.sv
@ -108,7 +108,7 @@ module csrm #(parameter
  logic            WritePMPADDRM [0:15]; 

  // MISA is hardwired.  Spec says it could be written to disable features, but this is not supported by Wally
-  assign MISA_REGW = {(`XLEN == 32 ? 2'b01 : 2'b10), {(`XLEN-28){1'b0}}, `MISA};
+  assign MISA_REGW = {(`XLEN == 32 ? 2'b01 : 2'b10), {(`XLEN-28){1'b0}}, {`MISA}[25:0]};

  // Write machine Mode CSRs 
  assign WriteMSTATUSM = CSRMWriteM && (CSRAdrM == MSTATUS);