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Modification of some Debug Modules parameters into (static) signals, as part of (#269)

Placeholder Cairo Caplan requested to merge github/fork/cairo-caplan/269_cve2_dbg_if_match_cve4 into main

Modification of some Debug Modules parameters into (static) signals, as part of the task to uniformize the CVE2 interface IO with the CVE4, #269 (closed) In summary:

  • The Debug halt and exception addresses were transformed from parameters (DmHaltAddr, DmExceptionAddr) into signals (dm_halt_addr_i, dm_exception_addr_i) , matching their equivalents on the CVE4
  • DbgTriggerEn was kept, but a reference comment to CVE4's DbgTriggerEn
  • DbgHwBreakNum, the number of hardware breakpoints supported, has no equivalent on the CVE4, so I kept it.

Additionally:

  • Added a buildsim.log to the gitignore, as it was generated by some make targets
  • Modified the reference from the IBEX to CVE2 on some comments of the already modified files, when necessary.
  • This PR includes the commit to extend the Performance counters from 0 to 10, part of #214 (closed)

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