VCS simulation (how to run?)

[kyeoh2]

I am trying to run VCS simulation, and I run into this missing ram.bin file, do you know what is the correct command to run VCS simulation? and where do I find the ram.bin file?

Here is my simulation run

Chronologic VCS simulator copyright 1991-2019
Contains Synopsys proprietary information.
Compiler version P-2019.06-SP2-1_Full64; Runtime version P-2019.06-SP2-1_Full64; Mar 28 01:52 2022
simv compiled at Mar 28 2022, 01:36:12
--diff is not given, try to use $(NEMU_HOME)/build/riscv64-nemu-interpreter-so by default
NemuProxy using XiangShan/NEMU/build/riscv64-nemu-interpreter-so
[src/device/io/mmio.c,18,add_mmio_map] Add mmio map 'flash' at [0x0000000010000000, 0x00000000100000ff]
The image is ram.bin
Using simulated 8192MB RAM
Can not open 'ram.bin'
simv: XiangShan/difftest/src/test/csrc/common/ram.cpp:161: void init_ram(const char*): Assertion `0' failed.

An unexpected termination has occurred in XiangShan/difftest/simv due to a signal: Aborted
Hostname scc920227

Command line: XiangShan/XiangShan/difftest/simv

Thanks,
KN

[kyeoh2]

I found that I need to link ram.bin -> ../ready-to-run/coremark-2-iteration.bin

[kyeoh2]

But the vcs build is missing link to dpi function:
--diff is not given, try to use $(NEMU_HOME)/build/riscv64-nemu-interpreter-so by default
NemuProxy using XiangShan/NEMU/build/riscv64-nemu-interpreter-so
[src/device/io/mmio.c,18,add_mmio_map] Add mmio map 'flash' at [0x0000000010000000, 0x00000000100000ff]
The image is ram.bin
Using simulated 8192MB RAM
The first instruction of core 0 has commited. Difftest enabled.

Error-[DPI-DIFNF] DPI import function not found
XiangShan/build/TLLogWriter.v, 38
The definition of DPI import function/task 'log_write_helper' does not
exist.
Please check the stated DPI import function/task is defined, and its
definition is either passed in a source file at compile-time, or provided in
a shared library specified using the LRM Annex-J options at run-time.

       V C S   S i m u l a t i o n   R e p o r t 

Time: 1403 ns
CPU Time: 3.640 seconds; Data structure size: 174.5Mb

[kyeoh2]

should the function be call tl_log_write_helper instead of log_write_helper? seem like the verilog code is wrong? Can someone comfirm?

[poemonsense]

where is the log_write_helper? I see form the source code (huancun/src/main/scala/huancun/debug/TLLogger.scala), it's tl_log_write_helper

[kyeoh2]

thanks!!