Mercurial > pub > dyncall > dyncall
changeset 660:17dff20b9c10
- clarified/fixed riscv64 callconv doc
| author | Tassilo Philipp |
|---|---|
| date | Tue, 12 Mar 2024 23:32:12 +0100 |
| parents | b8969b7b4876 |
| children | 93ce63d72d59 |
| files | doc/manual/callconvs/callconv_riscv64.tex |
| diffstat | 1 files changed, 1 insertions(+), 2 deletions(-) [+] |
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--- a/doc/manual/callconvs/callconv_riscv64.tex Tue Mar 12 23:12:15 2024 +0100 +++ b/doc/manual/callconvs/callconv_riscv64.tex Tue Mar 12 23:32:12 2024 +0100 @@ -79,8 +79,7 @@ \item stack parameter order: right-to-left \item caller cleans up the stack \item stack grows down -\item first 8 integer arguments are passed using x10-x17/a0-a7 -\item first 8 floating point arguments are passed using f10-f17/fa0-fa7 +\item up to 16 arguments \textless=\ 8 bytes are passed using x10-x17/a0-a7 and f10-f17/fa0-fa7, with floating point arguments using float registers until those are exhausted \item 128 bit arguments passed via registers are passed in even-odd register pairs (skipping a register, if necessary, which remains unused) \item aggregates (struct, union) \textless=\ 16 bytes in size are passed via registers (but only in float registers if members are either one or two floating point non-union and non-array members) \item arguments \textgreater 128 bits are passed as a pointer to the argument (to a copy, if needed)