unittests/ASM: Adds test for arpl flags

unittests/32Bit_ASM/arpl.asm

@@ -0,0 +1,67 @@
+%ifdef CONFIG
+{
+  "RegData": {
+    "RAX": "0xFFFF_0003",
+    "RBX": "0xFFFF_0003",
+    "RCX": "0",
+    "RDX": "0x000000000000119c",
+    "RSI": "0x0000000000000297"
+  },
+  "Mode": "32BIT"
+}
+%endif
+
+%macro setonz 1
+  setz cl
+  mov [rel .data + (%1 * 2)], cl
+%endmacro
+
+mov edx, 0
+mov ecx, 0
+mov esp, 0xe000_1000
+
+; Setup some flags
+mov edi, 0
+
+; Rest of the code after this sub only touches eflags.z
+sub edi, 1
+
+%assign i 0
+%assign offset 0
+%rep 4
+  %assign j 0
+  %rep 4
+    mov ebx, 0xFFFF_0000 + i
+    mov eax, 0xFFFF_0000 + j
+    ; ZF = dst.RPL < src.RPL
+    ; if (ZF) dst.RPL = src.RPL
+    arpl ax, bx
+    setonz offset
+    %assign j j+1
+    %assign offset offset+1
+  %endrep
+  %assign i i+1
+%endrep
+
+; Load flag state
+; Ensures that ONLY ZF changed.
+pushfd
+mov esi, [esp]
+
+; Calculate data
+%assign j 0
+%rep 16
+  mov cl, [rel .data + (j * 2)]
+  or edx, ecx
+  shl edx, 1
+%assign j j+1
+%endrep
+
+hlt
+
+.full_flags:
+dd 0x4CD7
+
+align 4096
+.data:
+dw 16 dup (0)