[fpc-devel] Question about internal compiler functions

[J. Gareth Moreton]

Hi everyone,

This might be the silliest question, but where are functions like 
fpc_sin_real defined and implemented in the compiler, specifically for 
x86_64?  I'm playing around with a faster algorithm but can't seem to 
find the actual files where the code is implemented. Functions like 
fpc_frac_real have implementations (even though they're hand-coded 
assembly language), and parts of the compiler suggest that sin is 
handled internally, and there's even lines of code that directly insert 
FSIN instructions, and yet the end result seems to be "call fpc_sin_real".

Any insight would be greatly appreciated (I'm starting to suspect that 
fpc_sin_real is a generic and slow implementation).

Kit


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