Revision History

0.90

Change DWARF register numbers again; mention that __m128 needs alignment; fix typo in figure ; add some comments on kernel expectations; mention TLS extensions; add example for passing of variable-argument lists; change semantics of %rax in variable-argument lists; improve formatting; mention that X87 class is not used for passing; make /lib64 a Linux specific section; rename x86-64 to AMD64; describe passing of complex types. Special thanks to Andi Kleen, Michal Ludvig, Michael Matz, David O'Brien and Eric Young for their comments.

0.21

Define __int128 as class INTEGER in register passing. Mention that %al is used for variadic argument lists. Fix some textual problems. Thanks to H. Peter Anvin, Bo Thorsen, and Michael Matz.

0.20 -- 2002-07-11

Change DWARF register number values of %rbx, %rsi, %rsi (thanks to Michal Ludvig). Fix footnotes for fundamental types (thanks to H. Peter Anvin). Specify size_t (thanks to Bo Thorsen and Andreas Schwab). Add new section on floating point environment functions.

0.19 -- 2002-03-27

Set name of Linux dynamic linker, mention %fs. Incorporate changes from H. Peter Anvin <hpa@zytor.com> for booleans and define handling of sub-64-bit integer types in registers.