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Merge pull request #1190 from jordancarlin/readme

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Update wsim commands in README
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@ -227,26 +227,28 @@ This utility will take up approximately 100 GB on your hard drive. You can also
wsim runs one of multiple simulators, Questa, VCS, or Verilator using a specific configuration and either a suite of tests or a specific elf file.
The general syntax is
`wsim <config> <suite or elf file or directory> [--options]`
`wsim <config> <suite or elf file> [--options]`
Parameters and options:
```
-h, --help show this help message and exit
--elf ELF, -e ELF ELF File name; use if name does not end in .elf
--sim {questa,verilator,vcs}, -s {questa,verilator,vcs} Simulator
--tb {testbench,testbench_fp}, -t {testbench,testbench_fp} Testbench
--gui, -g Simulate with GUI
--coverage, -c Code & Functional Coverage
--fcov, -f Code & Functional Coverage
--ccov, -c Code Coverage
--fcov, -f Functional Coverage with cvw-arch-verif, implies lockstep
--args ARGS, -a ARGS Optional arguments passed to simulator via $value$plusargs
--params PARAMS, -p PARAMS Optional top-level parameter overrides of the form param=value
--define DEFINE, -d DEFINE Optional define macros passed to simulator
--vcd, -v Generate testbench.vcd
--lockstep, -l Run ImperasDV lock, step, and compare.
--locksteplog LOCKSTEPLOG, -b LOCKSTEPLOG Retired instruction number to be begin logging.
--covlog COVLOG, -d COVLOG Log coverage after n instructions.
--elfext ELFEXT, -e ELFEXT When searching for elf files only includes ones which end in this extension
--lockstepverbose, -lv Run ImperasDV lock, step, and compare with tracing enabled
--rvvi, -r Simulate rvvi hardware interface and ethernet.
```
Run basic test with questa
Run basic test with Questa
```bash
wsim rv64gc arch64i
@ -258,26 +260,26 @@ Run Questa with gui
wsim rv64gc wally64priv --gui
```
Run lockstep against ImperasDV with a single elf file in the gui. Lockstep requires single elf.
Run basic test with Verilator
```bash
wsim rv64gc ../../tests/riscof/work/riscv-arch-test/rv64i_m/I/src/add-01.S/ref/ref.elf --lockstep --gui
wsim rv32i arch32i --sim verilator
```
Run lockstep against ImperasDV with a single elf file. Compute coverage.
Run lockstep against ImperasDV with a single elf file in the gui. Lockstep requires single elf.
```bash
wsim rv64gc ../../tests/riscof/work/riscv-arch-test/rv64i_m/I/src/add-01.S/ref/ref.elf --lockstep --coverage
wsim rv64gc $WALLY/tests/riscof/work/riscv-arch-test/rv64i_m/I/src/add-01.S/ref/ref.elf --lockstep --gui
```
Run lockstep against ImperasDV with directory file.
Run lockstep against ImperasDV with a single elf file. Collect functional coverage.
```bash
wsim rv64gc ../../tests/riscof/work/riscv-arch-test/rv64i_m/I/src/ --lockstep
wsim rv64gc $WALLY/addins/cvw-arch-verif/tests/rv64/Zicsr/WALLY-COV-ALL.elf --fcov
```
Run lockstep against ImperasDV with directory file and specify specific extension.
Run Linux boot simulation in lock step between Wally and ImperasDV
```bash
wsim rv64gc ../../tests/riscof/work/riscv-arch-test/rv64i_m/I/src/ --lockstep --elfext ref.elf
wsim buildroot buildroot --args +INSTR_LIMIT=600000000 --lockstep
```