docs: add acknowledgements (#3861)

build: purge chisel 3 and add deprecation check (#3250)

Merge remote-tracking branch 'upstream/master' into tmp-backend-merge-fixtiming

chore: bump chisel 6.0.0 (#2654)

BREAKING CHANGE: `SimTop.v` / `XSTop.v` now generated in `build/rtl`

Merge upstream/master into tmp-backend-merge-master

Bump rocket-chip (#2353)

chore: remove deprecated brackets, APIs, etc. (#2321)

backend,Core: remove dead code and comments

v2backend: huge tmp commit

Separate Utility submodule from XiangShan (#1861)

* misc: add utility submodule

* misc: adjust to new utility framework

* bump utility: revert resetgen

* bump huancun

Multiplier: adjust pipeline (#993)

* Multiplier: adjust pipeline

misc: update PCL information (#899)

XiangShan is jointly released by ICT and PCL.

Add MulanPSL-2.0 License (#824)

In this commit, we add License for XiangShan project.

Refactor parameters, SimTop and difftest (#753)

* difftest: use DPI-C to refactor difftest

In this commit, difftest is refactored with DPI-C calls.
There're a few reasons:
(1) From Verilator's

Refactor parameters, SimTop and difftest (#753)

* difftest: use DPI-C to refactor difftest

In this commit, difftest is refactored with DPI-C calls.
There're a few reasons:
(1) From Verilator's manual, DPI-C calls should be more efficient than accessing from dut_ptr.
(2) DPI-C is cross-platform (Verilator, VCS, ...)
(3) difftest APIs are splited from emu.cpp to possibly support more backend platforms
(NEMU, Spike, ...)

The performance at this commit is quite slower than the original emu.
Performance issues will be fixed later.

* [WIP] SimTop: try to use 'XSTop' as soc

* CircularQueuePtr: ues F-bounded polymorphis instead implict helper

* Refactor parameters & Clean up code

* difftest: support basic difftest

* Support diffetst in new sim top

* Difftest; convert recode fmt to ieee754 when comparing fp regs

* Difftest: pass sign-ext pc to dpic functions && fix exception pc

* Debug: add int/exc inst wb to debug queue

* Difftest: pass sign-ext pc to dpic functions && fix exception pc

* Difftest: fix naive commit num limit

Co-authored-by: Yinan Xu <[email protected]>
Co-authored-by: William Wang <[email protected]>

show more ...

fpu: wrap data part in a data module

Alu, Jump, Mul: wrap data in a dataModule

RS: rm some println log

Multiplier: fix xlen bug

[WIP] use berkeley-hardfloat in float units

[WIP] connect fp block

[WIP] exu: spilt exuConfig and it's module

Multiplier: add a array multiplier

[Backend]: Optimize exu and fu

Fix bit-width bug in multiplier

Merge 'master' into 'xs-fpu'