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.

1 files changed, 3 insertions, 0 deletions

diff --git a/test/real_mode/mod.rs b/test/real_mode/mod.rs
index 6005f07..8543fae 100644
--- a/test/real_mode/mod.rs
+++ b/test/real_mode/mod.rs
@@ -1,3 +1,5 @@
+mod operand;
+
 use std::fmt::Write;
 
 use yaxpeax_arch::{AddressBase, Decoder, U8Reader, LengthedInstruction};
@@ -17892,6 +17894,7 @@ fn test_real_mode() {
     test_display(&[0xff, 0x08], "dec word [bx + si]");
     test_display(&[0xff, 0x15], "call word [di]");
     test_display(&[0x67, 0xff, 0x15, 0x12, 0x12, 0x12, 0x12], "call word [0x12121212]");
+    // note that this call only writes two bytes, and only moves sp by two.
     test_display(&[0x66, 0xff, 0x15], "call dword [di]");
     test_display(&[0xff, 0x18], "callf dword [bx + si]");
     test_display(&[0xff, 0x24], "jmp word [si]");