fix(dbltrp): set sdt to 0 when exe sret to VU (#4313)

fix(dret): clear xstatus.xDT conditionally when dret is executed (#4193)

feat(Ss/Smdbltrp) : Support RISC-V Ss/Smdbltrp Extension (#3789)

* NEMU commit: 066cb1f1c61feb21153399c26ca393dfb3a560d7
* NEMU configs:
* riscv64-xs-ref_defconfig
* riscv64-dual-xs-ref_defco

feat(Ss/Smdbltrp) : Support RISC-V Ss/Smdbltrp Extension (#3789)

* NEMU commit: 066cb1f1c61feb21153399c26ca393dfb3a560d7
* NEMU configs:
* riscv64-xs-ref_defconfig
* riscv64-dual-xs-ref_defconfig

Including:
* fix(format): adjust code format and add one config (OpenXiangShan/NEMU#603)
* fix(vfredusum): set xstatus.fs and xstatus.vs dirty (OpenXiangShan/NEMU#605)
* fix(vf): do not set dirtyFs for some instructions (OpenXiangShan/NEMU#606)
* feat(trigger): add trigger support for rva.
* configs(xs): open Sm/sdbltrp extension and add MDT_INIT config (OpenXiangShan/NEMU#604)

---

* spike commit: c0b18d3913d8ceac83743a053a7dbd2fb8716c83
* spike config: CPU=XIANGSHAN

Including:
* fix(rva, trigger): For rva instr, raise BP from trigger prior to misaligned.
* fix(Makefile): Increase maxdepth for finding .h files.
* fix(tdata1): CPU_XIANGSHAN do not implement hit bit in tdata1.
* fix(icount): place the read before the return of the detect_icount_match.

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fix(CSR): typo in vsip.LocalIP's alias condition

* vsip.LocalIP is alias of hvip.LocalIP when !hideleg && hvien not !hideleg && mvien

ROB: clear flushPipe when the enq uop has exception (#3281)

CSR, RVH: fix the bug about checking vsstatus.vs (#3253)

NewCSR: set legal init value to WARL Field

NewCSR: separate csr modified FS/VS dirty from robCommit.FS/VS dirty

NewCSR: fix atp CSRs PPN mask

* The writable length of satp is `PAddrBits - PageOffsetWidth`.
* The writable length of vsatp varies with hgatp.MODE.
* When hgatp.MODE is `Bare`, it's `PAddrBits -

NewCSR: fix atp CSRs PPN mask

* The writable length of satp is `PAddrBits - PageOffsetWidth`.
* The writable length of vsatp varies with hgatp.MODE.
* When hgatp.MODE is `Bare`, it's `PAddrBits - PageOffsetWidth`.
* When hgatp.MODE is `Sv39x4`, it's `41 - PageOffsetWidth`.
* The writable length of hgatp is `PAddrBits - PageOffsetWidth`. Since the root page table is 16 KiB and must be aligned to a 16-KiB boundary, the lowest two bits of the physical page number (PPN) in hgatp always read as zeros.
* A write to hgatp with an unsupported MODE value is not ignored as it is for satp.
* Instead, the fields of hgatp are WARL in the normal way, when so indicated.

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NewCSR: update vsstatus.FS/VS only in VirtMode

NewCSR: add FS, VS check

* Execute fp/vec inst will modify sstatus.FS/VS to Dirty in HS/HU mode
* Execute fp/vec inst will modify sstatus.FS/VS and vsstatus.FS/VS to Dirty in VS/VU mode
* when sstat

NewCSR: add FS, VS check

* Execute fp/vec inst will modify sstatus.FS/VS to Dirty in HS/HU mode
* Execute fp/vec inst will modify sstatus.FS/VS and vsstatus.FS/VS to Dirty in VS/VU mode
* when sstatus.FS/VS is Off, execute fp/vec inst will raise EX_II in HS/HU mode
* when sstatus.FS/VS or vsstatus.FS/VS is Off, execute fp/vec inst will raise EX_II in VS/VU mode
* when sstatus.FS/VS or vsstatus.FS/VS is Off, access fp/vec CSR will raise EX_II

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NewCSR: make M and VS level interrupt bits in sip/sie/vsie/vsip read-only 0

NewCSR: fix vsie write to alias mie and sie

NewCSR: fix VS level's interrupt enable and pending bits delegated from HS level

NewCSR: fix rdata when VS mode access VS CSRs by address of S mode

NewCSR: support AIA extension Interrupt Pending and Enable

NewCSR: make vsip.SGEIP and vsie.SGEIE RO

* `SGEIP` should not exist in `vsip` and neither should `SGEIE`. Mark them RO to optimize

NewCSR: support Sstc extension

* Add `stimecmp` and `vstimecmp` CSR.
* Add `STIP` and `VSTIP` interrupt.
* Add `STCE` field in `menvcfg` and `henvcfg` to enable Sstc extension.

NewCSR: update vsatp CSR

* Other fields still update when PrivState.V=0 and vsatp.MODE writes illegal value

NewCSR: fix rdataFields and Initialize CSR

* fix mtopi,stopi,vstopi regOut
* fix rdataFields :|= regOut
* fix pmpcfg regOut
* Initialze hie, hip, hedeleg, hideleg
* use regOut when field as alias

NewCSR: change the type of rdata to UInt in CSRModule

* Since the rdata bundle is used to get CSR read value, we change the type of rdata to UInt(64.W) and do all needed expansions before the value

NewCSR: change the type of rdata to UInt in CSRModule

* Since the rdata bundle is used to get CSR read value, we change the type of rdata to UInt(64.W) and do all needed expansions before the value assigned to rdata bundles.

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NewCSR: make satp, vsatp and hgatp unchanged when write with illegal MODE

NewCSR: make COIE,LPRASEIE,HPRASEIE fields in xie read only

* Todo: set COIE,LPRASEIE,HPRASEIE in mie RW

NewCSR: refactor to make better verilog generation

NewCSR: add fu wrapper