zimm5 for unsigned and zero-extended
simm5 for signed and signed-extended
It is unsigned arithmetics
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
Firmware implementations, such as OpenSBI's fw_jump, make use of this
feature on other targets to avoid having to be rebuilt every time the
payload is updated.
Stricter validation of ELF binaries improves usability with informative
assertions. This prevents users from loading ELF relocatable files and
binaries compiled for their (non-RISC-V) workstations, for example.
Without this patch, spike would attempt to load nearly any ELF given,
but it would usually fail with an error about debug module accesses,
since the given ELF causes accesses in the debug module's memory space.
Even if spike successfully loaded the ELF file, it would still misbehave
during simulation, for example in the case of ELF relocatable files.
ELF magic numbers come from official ELF documents:
TIS ELF spec v1.2, via Linux Foundation Referenced Specifications
See: https://refspecs.linuxbase.org/
RISC-V magic number comes from official RISC-V ELF documents:
See: riscv/riscv-elf-psabi-doc@60c25981b62c0b43d16142f8a12c8b1e98e60d4d
1. add an extra argument to support commitlog
2. move vectorUnit_t into processor_t to avoid circular dependency hell
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
1. use hash to keep duplicated register write since vector has lmul
feature
2. enhance print fuction to support type larger than 64bit
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
implement a specific initalization function to avoid
weird segfault when the member is complex
structure such as map or hash.
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
* Make minimum RTI behavior more realistic.
Now DMI will return busy when you'd expect it to, instead of a few scans
later. This only matters when testing OpenOCD. There is no other reason
to use --dmi-rti.
* dmireset only resets busy.
1. fix disam
2. refine checking rule and move them out of loop
3. add missing exception keeping for each element
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
Chih-Min Chao
Dave.Wen
Max Lin
Andrew Waterman
Megan Wachs
James Clarke
Alexander Lent
Tim Newsome