Commit graph

5 commits

Author SHA1 Message Date
Richard Henderson cb2ce66814
target/riscv: Use --static-decode for decodetree
The generated functions are only used within translate.c
and do not need to be global, or declared.

Backports commit 81770255581bd210c57b86a6e808628ab8d0c543 from qemu
2019-05-28 18:45:23 -04:00
Lioncash 8d294a7897
target/riscv: Convert quadrant 0 of RVXC insns to decodetree 2019-03-19 04:45:53 -04:00
Bastian Koppelmann 1024ceb4df
target/riscv: Convert RV64I load/store insns to decodetree
this splits the 64-bit only instructions into its own decode file such
that we generate the decoder for these instructions only for the RISC-V
64 bit target.

Backports commit 7e45a682edc32ba90d6955215f062210531b835b from qemu
2019-03-18 16:02:16 -04:00
Bastian Koppelmann 5e5b3e9ea9
target/riscv: Activate decodetree and implemnt LUI & AUIPC
for now only LUI & AUIPC are decoded and translated. If decodetree fails, we
fall back to the old decoder.

Backports commit 2a53cff418335ccb4719e9a94fde55f6ebcc895d from qemu
2019-03-18 15:54:17 -04:00
Lioncash b6f752970b
target/riscv: Initial introduction of the RISC-V target
This ports over the RISC-V architecture from Qemu. This is currently a
very barebones transition. No code hooking or any fancy stuff.
Currently, you can feed it instructions and query the CPU state itself.

This also allows choosing whether or not RISC-V 32-bit or RISC-V 64-bit
is desirable through Unicorn's interface as well.

Extremely basic examples of executing a single instruction have been
added to the samples directory to help demonstrate how to use the basic
functionality.
2019-03-08 21:46:10 -05:00