adjust public interface: public items should all be stable

`OperandCode` (obviously) wildly varies depending on how i feel on a
given week, so it's now hidden to avoid people depending on numerical
values of its discriminants.

`RegisterBank` got a similar treatment with a new `RegisterClass` struct
that's suitable for public use.

2 files changed, 16 insertions, 1 deletions

diff --git a/test/protected_mode/mod.rs b/test/protected_mode/mod.rs
index bf9315c..c5c3c7b 100644
--- a/test/protected_mode/mod.rs
+++ b/test/protected_mode/mod.rs
@@ -12,7 +12,7 @@ fn test_invalid(data: &[u8]) {
 
 fn test_invalid_under(decoder: &InstDecoder, data: &[u8]) {
     if let Ok(inst) = decoder.decode(data.into_iter().cloned()) {
-        assert_eq!(inst.opcode, Opcode::Invalid, "decoded {:?} from {:02x?} under decoder {}", inst.opcode, data, decoder);
+        assert_eq!(inst.opcode(), Opcode::Invalid, "decoded {:?} from {:02x?} under decoder {}", inst.opcode(), data, decoder);
     } else {
         // this is fine
     }
diff --git a/test/protected_mode/regspec.rs b/test/protected_mode/regspec.rs
index bd996cc..eb8d018 100644
--- a/test/protected_mode/regspec.rs
+++ b/test/protected_mode/regspec.rs
@@ -18,3 +18,18 @@ fn test_labels() {
     assert_eq!(RegSpec::gs().name(), "gs");
     assert_eq!(RegSpec::al().name(), "al");
 }
+
+#[test]
+fn test_bank_names() {
+    assert_eq!(RegSpec::al().class().name(), "byte");
+    assert_eq!(RegSpec::ax().class().name(), "word");
+    assert_eq!(RegSpec::eax().class().name(), "dword");
+    assert_eq!(RegSpec::fs().class().name(), "segment");
+    assert_eq!(RegSpec::eflags().class().name(), "eflags");
+    assert_eq!(RegSpec::eip().class().name(), "eip");
+    assert_eq!(RegSpec::st0().class().name(), "x87-stack");
+    assert_eq!(RegSpec::mm0().class().name(), "mmx");
+    assert_eq!(RegSpec::xmm0().class().name(), "xmm");
+    assert_eq!(RegSpec::ymm0().class().name(), "ymm");
+    assert_eq!(RegSpec::zmm0().class().name(), "zmm");
+}