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author | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-01-03 17:09:54 +0000 |
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committer | xleroy <xleroy@fca1b0fc-160b-0410-b1d3-a4f43f01ea2e> | 2014-01-03 17:09:54 +0000 |
commit | 362f2f36a44fa6ab4fe28264ed572d721adece70 (patch) | |
tree | 2f1b23f88fe906ae554e963acbcde09c54b1b5fb /powerpc | |
parent | 089c6c6dc139a0c32f8566d028702d39d0748077 (diff) | |
download | compcert-362f2f36a44fa6ab4fe28264ed572d721adece70.tar.gz compcert-362f2f36a44fa6ab4fe28264ed572d721adece70.zip |
Introduce and use the platform-specific Archi module giving:
- endianness
- alignment constraints for 8-byte types
(which is 4 for x86 ABI and 8 for other ABIs)
- NaN handling options (superceding the Nan module, removed).
git-svn-id: https://yquem.inria.fr/compcert/svn/compcert/trunk@2402 fca1b0fc-160b-0410-b1d3-a4f43f01ea2e
Diffstat (limited to 'powerpc')
-rw-r--r-- | powerpc/Archi.v (renamed from powerpc/Nan.v) | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/powerpc/Nan.v b/powerpc/Archi.v index c2307896..0672dced 100644 --- a/powerpc/Nan.v +++ b/powerpc/Archi.v @@ -14,13 +14,21 @@ (* *) (* *********************************************************************) +(** Architecture-dependent parameters for PowerPC *) + +Require Import ZArith. Require Import Fappli_IEEE. Require Import Fappli_IEEE_bits. -Require Import Floats. -Require Import ZArith. -Require Import Integers. -Program Definition default_pl : bool * nan_pl 53 := (false, nat_iter 51 xO xH). +Definition big_endian := false. + +Notation align_int64 := 8%Z (only parsing). +Notation align_float64 := 8%Z (only parsing). + +Program Definition default_pl : bool * nan_pl 53 := + (true, nat_iter 51 xO xH). Definition choose_binop_pl (s1: bool) (pl1: nan_pl 53) (s2: bool) (pl2: nan_pl 53) := - false. + false. (**r always choose first NaN *) + +Global Opaque big_endian default_pl choose_binop_pl. |