Update documentation to reflect per OS support.
Fixes #16
diff --git a/README.md b/README.md
index 6aabbe6..de3d1b1 100644
--- a/README.md
+++ b/README.md
@@ -124,23 +124,23 @@
<a name="support"></a>
## What's supported
-| | x86 | ARM | AArch64 | MIPS | POWER |
-|---------------------------- | :-: | :-: | :-----: | :----: | :-----: |
-|Features revealed from CPU | yes | no* | no* | not yet | not yet |
-|Features revealed from Linux | no | yes | yes | yes | not yet |
-|Microarchitecture detection | yes | no | no | no | not yet |
-|Windows support | yes | no | no | no | not yet |
+| | x86³ | ARM | AArch64 | MIPSel | POWER |
+|---------|:-------:|:-------:|:-------:|:-------:|:-------:|
+| Android | yes² | yes¹ | yes¹ | yes¹ | not yet |
+| iOS | not yet | not yet | not yet | not yet | not yet |
+| Linux | yes² | yes¹ | yes¹ | yes¹ | not yet |
+| MacOs | yes² | yes¹ | yes¹ | yes¹ | not yet |
+| Windows | yes² | not yet | not yet | no | no |
-- **Features revealed from CPU.** features are retrieved by using the `cpuid`
- instruction. *Unfortunately this instruction is privileged for some
- architectures, in which case we fall back to Linux.
-- **Features revealed from Linux.** We gather data from several sources
+1. **Features revealed from Linux.** We gather data from several sources
depending on availability:
+ from glibc's
[getauxval](https://www.gnu.org/software/libc/manual/html_node/Auxiliary-Vector.html)
+ by parsing `/proc/self/auxv`
+ by parsing `/proc/cpuinfo`
-- **Microarchitecture detection.** On x86 some features are not always
+2. **Features revealed from CPU.** features are retrieved by using the `cpuid`
+ instruction.
+3. **Microarchitecture detection.** On x86 some features are not always
implemented efficiently in hardware (e.g. AVX on Sandybridge). Exposing the
microarchitecture allows the client to reject particular microarchitectures.
