fix decoding of rex-prefixed modrm+sib operands selecting index 0b100 and base 0b1010.1.4

for memory operands with a base, index, and displacement either
the wrong base would be selected (register number ignored, so only
`*ax` or `r8*` would be reported), or yaxpeax-x86 would report a
base register is present when it is not (`RegIndexBaseScaleDisp`
when the operand is actually `RegScaleDisp`)

thank you to Evan Johnson for catching and reporting this bug!

also bump crate version to 0.1.4 as this will be immediately tagged and
released.

1 files changed, 10 insertions, 0 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 5f0b9f7..8de4801 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,13 @@
+## 0.1.4
+* [long mode only]: fix decoding of rex-prefixed modrm+sib operands selecting index 0b100 and base 0b101
+  - for memory operands with a base, index, and displacement either
+    the wrong base would be selected (register number ignored, so only
+    `*ax` or `r8*` would be reported), or yaxpeax-x86 would report a
+    base register is present when it is not (`RegIndexBaseScaleDisp`
+    when the operand is actually `RegScaleDisp`)
+
+thank you to Evan Johnson for catching and reporting this bug!
+
 ## 0.1.3
 * fix 0x80-opcode instructions not having an opcode
   - this meant that for example `lock xorb [rax], 0` would decode as invalid