On 17 Dec 2011, at 01:46, Bernd wrote: > Is there maybe any other document somewhere that describes what > *exactly* is expected by the compiler to happen with the registers > during a function call or maybe somebody can show me where in the FPC > sources I have to look to see for myself what exactly is going on?
On i386 with the "register" calling convention, * eax, ecx and edx are volatile (= caller can overwrite them without saving them) * ebx, esi, edi, ebp and esp and non-volatile (= caller must save/restore them if it overwrites them) On other platforms (including x86-64), all calling conventions follow the official platform ABI as far as volatile/non-volatile registers are concerned. Jonas_______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
