From cef4feeaf9c64e03a6728f267750ac2fb32eb9ff Mon Sep 17 00:00:00 2001 From: iximeow Date: Sat, 21 Aug 2021 12:13:01 -0700 Subject: report memory sizes for push, pop, call, ret these instructions had memory sizes reported for the operand, if it was a memory operand, but for versions with non-memory operands the decoded `Instruction` would imply that non memory access would happen at all. now, decoded instructions in these cases will report a more useful memory size. --- test/long_mode/operand.rs | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'test/long_mode') diff --git a/test/long_mode/operand.rs b/test/long_mode/operand.rs index 7be8d82..4cdaf35 100644 --- a/test/long_mode/operand.rs +++ b/test/long_mode/operand.rs @@ -28,3 +28,21 @@ fn memory_widths() { assert_eq!(mem_size_of(&[0x33, 0x00]).size_name(), "dword"); assert_eq!(mem_size_of(&[0x48, 0x33, 0x00]).size_name(), "qword"); } + +#[test] +fn test_implied_memory_width() { + fn mem_size_of(data: &[u8]) -> Option { + let decoder = InstDecoder::default(); + decoder.decode_slice(data).unwrap().mem_size().unwrap().bytes_size() + } + + // test push, pop, call, and ret + assert_eq!(mem_size_of(&[0xc3]), Some(8)); + assert_eq!(mem_size_of(&[0xe8, 0x11, 0x22, 0x33, 0x44]), Some(8)); + assert_eq!(mem_size_of(&[0x50]), Some(8)); + assert_eq!(mem_size_of(&[0x58]), Some(8)); + assert_eq!(mem_size_of(&[0x66, 0x50]), Some(8)); + assert_eq!(mem_size_of(&[0x66, 0x58]), Some(8)); + assert_eq!(mem_size_of(&[0xff, 0xf0]), Some(8)); + assert_eq!(mem_size_of(&[0x66, 0xff, 0xf0]), Some(2)); +} -- cgit v1.1