| commit | fc03de64bfb5d137f704dbcb9c1b24fb25c3e340 | [log] [tgz] |
|---|---|---|
| author | Rupert Swarbrick <rswarbrick@lowrisc.org> | Fri Aug 14 17:53:05 2020 +0100 |
| committer | Rupert Swarbrick <rswarbrick@gmail.com> | Wed Aug 19 18:03:07 2020 +0100 |
| tree | 02a6a925f9b2539a401b6b3cf6bd77f62288362d | |
| parent | ec927c574b66f94a64a16956a17406e375587374 [diff] |
[otbn] Add support for unconditional jumps in otbn-rig For a tiny example, run: hw/ip/otbn/util/otbn-rig --asm-output gen.S --size 10 -o gen.json and gen.S will contain: /* Section 0 (2 instructions) */ .offset 0x0 addi x30, x0, 1269 jal x6, 3320 /* Section 1 (4 instructions) */ .offset 0x2d4 lui x29, 29447 srl x18, x30, x30 slli x17, x24, 5 ecall /* Section 2 (2 instructions) */ .offset 0xcfc andi x24, x0, 4 jal x3, -2604 Note that the .offset directives in the generated assembly don't actually work for generating different sections: that, together with the rather ugly command line, will be fixed in a separate commit. Finally, this commit changes the comments generated in the assembly output from "Snippet" to "Section": the things being described might come from several snippets. I think I just had the word snippet on the mind when I wrote the code in the first place! Signed-off-by: Rupert Swarbrick <rswarbrick@lowrisc.org>
OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.
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