reallocate OperandCode, convert disparate registers to array

also remove redundant assignments of operand_count and some OperandSpec,
bulk-assign all registers and operands on entry to `read_instr`. this
all, taken together, shaves off about 7 cycles per decode.

1 files changed, 2 insertions, 1 deletions

diff --git a/test/protected_mode/display.rs b/test/protected_mode/display.rs
index 8426a0a..694c38c 100644
--- a/test/protected_mode/display.rs
+++ b/test/protected_mode/display.rs
@@ -12,7 +12,8 @@ fn test_display_under(decoder: &InstDecoder, data: &[u8], expected: &'static str
     for b in data {
         write!(hex, "{:02x}", b).unwrap();
     }
-    match decoder.decode(data.into_iter().map(|x| *x)) {
+    let mut reader = yaxpeax_arch::U8Reader::new(data);
+    match decoder.decode(&mut reader) {
         Ok(instr) => {
             let text = format!("{}", instr.display_with(DisplayStyle::C));
             assert!(