asciidoctor-sail
riscv-isa-manual
| asciidoctor-sail | riscv-isa-manual | |
|---|---|---|
| 1 | 1 | |
| 3 | 1 | |
| - | - | |
| 4.2 | - | |
| 11 days ago | almost 4 years ago | |
| Ruby | TeX | |
| MIT License | Creative Commons Attribution 4.0 |
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asciidoctor-sail
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How to improve the RISC-V specification
Sail is pretty similar to ASL (both current ASL and ASL 1.0) except that (1) it has a more expressive type system, so that bitvector lengths can all be statically checked, (2) it has proper tagged unions and pattern matching, and (3) there's a wide range of open-source tooling available, for execution, specification coverage, generating emulators, integrating with relaxed concurrency models, generating theorem-prover definitions, etc. We've recently updated the Sail README, which spells some of this out: https://github.com/rems-project/sail .
As Alastair Reid says, one of the main things missing in the current RISC-V specification documents is simply that the associated Sail definitions are not yet interspersed with the prose instruction descriptions. The infrastructure to do that has been available for some time, in the Sail AsciiDoc support by Alasdair Armstrong (https://github.com/Alasdair/asciidoctor-sail/blob/master/doc...) and older LaTeX versions by Prashanth Mundkur and Alasdair (https://github.com/rems-project/riscv-isa-manual/blob/sail/r...).
riscv-isa-manual
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How to improve the RISC-V specification
Sail is pretty similar to ASL (both current ASL and ASL 1.0) except that (1) it has a more expressive type system, so that bitvector lengths can all be statically checked, (2) it has proper tagged unions and pattern matching, and (3) there's a wide range of open-source tooling available, for execution, specification coverage, generating emulators, integrating with relaxed concurrency models, generating theorem-prover definitions, etc. We've recently updated the Sail README, which spells some of this out: https://github.com/rems-project/sail .
As Alastair Reid says, one of the main things missing in the current RISC-V specification documents is simply that the associated Sail definitions are not yet interspersed with the prose instruction descriptions. The infrastructure to do that has been available for some time, in the Sail AsciiDoc support by Alasdair Armstrong (https://github.com/Alasdair/asciidoctor-sail/blob/master/doc...) and older LaTeX versions by Prashanth Mundkur and Alasdair (https://github.com/rems-project/riscv-isa-manual/blob/sail/r...).
What are some alternatives?
riscv-opcodes - RISC-V Opcodes