Update tests to check for negative zero

FEX-Emu · Sep 26, 2024 · b8e6f1b · b8e6f1b
1 parent cab62e7
commit b8e6f1b
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Showing 2 changed files with 27 additions and 1 deletion.
diff --git a/unittests/ASM/X87/FScale-Zero.asm b/unittests/ASM/X87/FScale-Zero.asm
@@ -5,11 +5,14 @@
     "R9": "0",
     "R10": "0",
     "R11": "0",
-    "R12": "0"
+    "R12": "0",
+    "R13": "0x8000000000000000"
   }
 }
 %endif
 
+section .data
+    neg_zero dq 0x8000000000000000   ; -0.0
 
 section .bss
   align 8
@@ -69,4 +72,14 @@ fscale
 fst qword [rel intstor]
 mov r12, [rel intstor]
 
+; tests scaling negative zero
+mov rax, 1048576
+mov qword [rel intstor], rax
+finit
+fild qword [rel intstor]
+fld qword [rel neg_zero]
+fscale
+fst qword [rel intstor]
+mov r13, [rel intstor]
+
 hlt
diff --git a/unittests/ASM/X87_F64/FScale-Zero_F64.asm b/unittests/ASM/X87_F64/FScale-Zero_F64.asm
@@ -11,6 +11,9 @@
 }
 %endif
 
+section .data
+    neg_zero dq 0x8000000000000000   ; -0.0
+
 section .bss
     intstor: resq 1
 
@@ -65,4 +68,14 @@ fscale
 fst qword [rel intstor]
 mov r12, [rel intstor]
 
+; tests scaling negative zero
+mov rax, 1048576
+mov qword [rel intstor], rax
+finit
+fild qword [rel intstor]
+fld qword [rel neg_zero]
+fscale
+fst qword [rel intstor]
+mov r13, [rel intstor]
+
 hlt