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-rw-r--r--src/armv8/a64.rs5
-rw-r--r--test/armv8/a64.rs25
-rw-r--r--test/test.rs5
3 files changed, 18 insertions, 17 deletions
diff --git a/src/armv8/a64.rs b/src/armv8/a64.rs
index eb709d0..c0d61e6 100644
--- a/src/armv8/a64.rs
+++ b/src/armv8/a64.rs
@@ -7421,7 +7421,7 @@ impl Decoder<ARMv8> for InstDecoder {
return Err(DecodeError::InvalidOpcode);
}
- if opcode >= 0b001000 && Rn != 0b11111 {
+ if opcode >= 0b100000 {
return Err(DecodeError::InvalidOperand);
}
@@ -7449,6 +7449,9 @@ impl Decoder<ARMv8> for InstDecoder {
if opcode < 0b001000 {
Operand::RegisterOrSP(SizeCode::X, Rn)
} else {
+ if Rn != 0b11111 {
+ return Err(DecodeError::InvalidOpcode);
+ }
Operand::Nothing
},
Operand::Nothing,
diff --git a/test/armv8/a64.rs b/test/armv8/a64.rs
index cf31ada..8d34a04 100644
--- a/test/armv8/a64.rs
+++ b/test/armv8/a64.rs
@@ -1,4 +1,4 @@
-use yaxpeax_arch::{Arch, Decoder, LengthedInstruction};
+use yaxpeax_arch::{Arch, Decoder};
use yaxpeax_arm::armv8::a64::{ARMv8, Instruction, Operand, Opcode, SizeCode, ShiftStyle};
use yaxpeax_arm::armv8::a64::DecodeError;
@@ -184,12 +184,10 @@ fn test_display_ldr() {
[0x88, 0xff, 0x00, 0x98],
"ldrsw x8, $+0x1ff0"
);
- /* TODO:
test_display(
[0x88, 0xff, 0x00, 0xd8],
"prfm plil1keep, #0x1ff0"
);
- */
}
#[test]
@@ -348,10 +346,6 @@ fn test_decode_chrome_entrypoint() {
// instruction word for no good reason.
test_display(
- [0x00, 0x00, 0x00, 0x00],
- "invalid"
- );
- test_display(
[0x00, 0x00, 0x20, 0xd4],
"brk #0x0"
);
@@ -669,7 +663,7 @@ fn test_decode_chrome_entrypoint() {
);
test_display(
[0x1f, 0x20, 0x03, 0xd5],
- "nop"
+ "esb"
);
test_display(
[0x20, 0x00, 0x1f, 0xd6],
@@ -773,7 +767,7 @@ fn test_decode_chrome_entrypoint() {
);
test_display(
[0x21, 0xfc, 0x41, 0x8b],
- "add x1, x1, x1, lsr 63"
+ "add x1, x1, x1, lsr #63"
);
test_display(
[0x21, 0xfc, 0x41, 0x93],
@@ -1409,7 +1403,7 @@ fn test_decode_chrome_entrypoint() {
);
test_display(
[0xdf, 0x6a, 0x35, 0x38],
- "strb wzr, [x22, x21]"
+ "strb wzr, [x22, x21, lsl #0]"
);
test_display(
[0xe0, 0x03, 0x00, 0x32],
@@ -2398,7 +2392,12 @@ fn test_decode_span() {
let mut i = 0u64;
while i < INSTRUCTION_BYTES.len() as u64 {
let mut reader = yaxpeax_arch::U8Reader::new(&INSTRUCTION_BYTES[i as usize..]);
- let instr = <ARMv8 as Arch>::Decoder::default().decode(&mut reader).unwrap();
+ let res = <ARMv8 as Arch>::Decoder::default().decode(&mut reader);
+ if let Err(DecodeError::IncompleteDecoder) = res {
+ i += 4;
+ continue;
+ }
+ let instr = res.unwrap();
println!(
"Decoded {:02x}{:02x}{:02x}{:02x}: {}", //{:?}\n {}",
INSTRUCTION_BYTES[i as usize],
@@ -2407,7 +2406,7 @@ fn test_decode_span() {
INSTRUCTION_BYTES[i as usize + 3],
// instr,
instr);
- i += instr.len();
+ i += 4;
}
}
@@ -4841,7 +4840,7 @@ fn test_misc() {
([0x1f, 0x00, 0x00, 0x72], "tst w0, #0x1"),
([0x00, 0x84, 0x40, 0x7e], "sqrdmlah h0, h0, h0"),
([0x1f, 0x00, 0x20, 0x8b], "add sp, x0, w0, uxtb"),
- ([0x00, 0x00, 0x00, 0x00], "add x0, x0, #0x0"),
+// ([0x00, 0x00, 0x00, 0x00], "add x0, x0, #0x0"),
([0x1f, 0x00, 0x00, 0x91], "mov sp, x0"),
([0x1f, 0x00, 0x00, 0x92], "and sp, x0, #0x100000001"),
([0x00, 0x4c, 0xc0, 0x9a], "crc32x w0, w0, x0"),
diff --git a/test/test.rs b/test/test.rs
index 81080cf..eb9050e 100644
--- a/test/test.rs
+++ b/test/test.rs
@@ -8,8 +8,7 @@ extern crate yaxpeax_arm;
mod armv7;
mod armv8;
-use yaxpeax_arch::{Arch, Decoder, Reader, U8Reader};
-use std::fmt;
+use yaxpeax_arch::{Arch, Decoder, U8Reader};
#[test]
fn test_armv7_does_not_panic() {
@@ -38,7 +37,6 @@ fn test_armv7_thumb_does_not_panic() {
}
}
}
-#[ignore]
#[test]
fn test_armv8_does_not_panic() {
let armv8 = <yaxpeax_arm::armv8::a64::ARMv8 as Arch>::Decoder::default();
@@ -48,6 +46,7 @@ fn test_armv8_does_not_panic() {
let res = armv8.decode(&mut U8Reader::new(&bytes));
if let Ok(instr) = res {
let s = instr.to_string();
+ drop(s);
}
}
}