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| author | Bernhard Schommer <bschommer@users.noreply.github.com> | 2017-05-03 11:18:32 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-05-03 11:18:32 +0200 |
| commit | 7873af34a9520ee5a8a6f10faddf3255a4ff02b2 (patch) | |
| tree | 74500c845c99b39ba91a5507656060dea60404ea /runtime/README | |
| parent | 25ea686abc4cce13aba92196dbeb284f727b6e0e (diff) | |
| download | compcert-kvx-7873af34a9520ee5a8a6f10faddf3255a4ff02b2.tar.gz compcert-kvx-7873af34a9520ee5a8a6f10faddf3255a4ff02b2.zip | |
Hybrid 64bit/32bit PowerPC port
This commit adds code generation for 64bit PowerPC architectures which execute
32bit applications.
The main difference to the normal 32bit PowerPC port is that it uses the
available 64bit instructions instead of using the runtime library functions.
However pointers are still 32bit and the 32bit calling convention is used.
In order to use this port the target architecture must be either in Server
execution mode or if in Embedded execution mode the high order 32 bits of GPRs
must be implemented in 32-bit mode. Furthermore the operating system must
preserve the high order 32 bits of GPRs.
Diffstat (limited to 'runtime/README')
| -rw-r--r-- | runtime/README | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/runtime/README b/runtime/README index 5d824300..f38ed894 100644 --- a/runtime/README +++ b/runtime/README @@ -1,11 +1,11 @@ This is the support library for CompCert-generated code. + It provides helper functions for: - 64-bit integer arithmetic - implementing the va_arg macro from <stdarg.h> The implementation is written in assembly language in the -arm/ ia32/ powerpc/ directories. +arm/ powerpc/ powerpc64/ riscV/ x86_32/ x86_64/ directories. The c/ directory contains a C implementation of the 64-bit integer functions. It is provided for reference and as a guide for the asm implementations. - |