Mercurial > pub > dyncall > dyncall
changeset 238:05181c5a6edd
- ppc32 doc tweak
| author | Tassilo Philipp |
|---|---|
| date | Tue, 02 May 2017 03:00:55 +0200 |
| parents | 98503af08916 |
| children | c04be81f4874 |
| files | doc/manual/callconvs/callconv_ppc32.tex |
| diffstat | 1 files changed, 6 insertions(+), 5 deletions(-) [+] |
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--- a/doc/manual/callconvs/callconv_ppc32.tex Tue May 02 02:55:16 2017 +0200 +++ b/doc/manual/callconvs/callconv_ppc32.tex Tue May 02 03:00:55 2017 +0200 @@ -49,13 +49,14 @@ {\bf gpr0} & scratch\\ {\bf gpr1} & stack pointer\\ {\bf gpr2} & scratch\\ -{\bf gpr3} & return value, parameter 0 if integer or pointer\\ -{\bf gpr4-gpr10} & return value, parameter 1-7 for integer or pointer parameters\\ +{\bf gpr3,gpr4} & return value, parameter 0 and 1 for integer or pointer\\ +{\bf gpr5-gpr10} & parameter 2-7 for integer or pointer parameters\\ {\bf gpr11} & permanent\\ {\bf gpr12} & branch target for dynamic code generation\\ {\bf gpr13-31} & permanent\\ {\bf fpr0} & scratch\\ -{\bf fpr1-fpr13} & parameter 0-12 for floating point (always double precision)\\ +{\bf fpr1} & floating point return value, floating point parameter 0 (always double precision)\\ +{\bf fpr2-fpr13} & floating point parameters 1-12 (always double precision)\\ {\bf fpr14-fpr31} & permanent\\ {\bf v0-v1} & scratch\\ {\bf v2-v13} & vector parameters\\ @@ -73,8 +74,8 @@ \paragraph{Parameter passing} \begin{itemize} -\item stack parameter order: right-to-left@@@? -\item caller cleans up the stack@@@? +\item stack parameter order: right-to-left +\item caller cleans up the stack \item the first 8 integer parameters are passed in registers gpr3-gpr10 \item the first 12 floating point parameters are passed in registers fpr1-fpr13 \item if a float parameter is passed via a register, gpr registers are skipped for subsequent integer parameters (based on the size of