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| author | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2019-05-10 23:53:02 +0200 |
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| committer | David Monniaux <david.monniaux@univ-grenoble-alpes.fr> | 2019-05-10 23:53:02 +0200 |
| commit | 295058286407ec6c4182f2b12b27608fc7d28f95 (patch) | |
| tree | 9f5583cf990eb9aaee259e13b0737cce27948fe2 /mppa_k1c/ExtValues.v | |
| parent | e2ea45f5ba656254fa11bf3f355da67292c11f06 (diff) | |
| download | compcert-kvx-295058286407ec6c4182f2b12b27608fc7d28f95.tar.gz compcert-kvx-295058286407ec6c4182f2b12b27608fc7d28f95.zip | |
use shift 1-4 in backend
Diffstat (limited to 'mppa_k1c/ExtValues.v')
| -rw-r--r-- | mppa_k1c/ExtValues.v | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/mppa_k1c/ExtValues.v b/mppa_k1c/ExtValues.v index 5d16b79c..1aa17458 100644 --- a/mppa_k1c/ExtValues.v +++ b/mppa_k1c/ExtValues.v @@ -2,6 +2,20 @@ Require Import Coqlib. Require Import Integers. Require Import Values. +Inductive shift1_4 : Type := +| SHIFT1 | SHIFT2 | SHIFT3 | SHIFT4. + +Definition z_of_shift1_4 (x : shift1_4) := + match x with + | SHIFT1 => 1 + | SHIFT2 => 2 + | SHIFT3 => 3 + | SHIFT4 => 4 + end. + +Definition int_of_shift1_4 (x : shift1_4) := + Int.repr (z_of_shift1_4 x). + Definition is_bitfield stop start := (Z.leb start stop) && (Z.geb start Z.zero) |