unittests: Adds unit tests for storing segment register sizes

unittests/32Bit_ASM/Primary/Primary_8C.asm

@@ -0,0 +1,37 @@
+%ifdef CONFIG
+{
+  "RegData": {
+    "RAX": "0xFFFF0033",
+    "RBX": "0xFFFF0033",
+    "RCX": "0xFFFF0033"
+  },
+  "Mode": "32BIT"
+}
+%endif
+
+mov eax, 0x33
+mov gs, ax
+mov fs, ax
+mov es, ax
+
+mov eax, 0xFFFFFFFF
+mov ebp, 0xe0000000
+
+; Store 32bits of data
+mov dword [ebp + 0], eax
+mov dword [ebp + 4], eax
+mov dword [ebp + 8], eax
+
+; Ensure that the segment store only writes 16-bits
+mov word [ebp + 0], gs
+mov word [ebp + 4], fs
+mov word [ebp + 8], es
+
+mov eax, 0
+mov ebx, 0
+mov ecx, 0
+mov eax, dword [ebp + 0]
+mov ebx, dword [ebp + 4]
+mov ecx, dword [ebp + 8]
+
+hlt

unittests/32Bit_ASM/Primary/Primary_8C_2.asm

@@ -0,0 +1,27 @@
+%ifdef CONFIG
+{
+  "RegData": {
+    "RAX": "0xFFFF0033",
+    "RBX": "0x33",
+    "RCX": "0x33"
+  },
+  "Mode": "32BIT"
+}
+%endif
+
+mov eax, 0x33
+mov gs, ax
+mov fs, ax
+mov es, ax
+
+mov eax, 0xFFFFFFFF
+mov ebx, 0xFFFFFFFF
+mov ecx, 0xFFFFFFFF
+
+; 16-bit insert
+mov ax, gs
+; 32-bit zext
+mov ebx, fs
+mov ecx, es
+
+hlt