Changeset 104824 in vbox for trunk/src/VBox/ValidationKit

Timestamp:

May 31, 2024 7:09:54 AM (6 months ago)

Author:

vboxsync

Message:

ValidationKit/bootsectors: bugref:10658 SIMD FP testcase: Smallest normals.

File:

• trunk/src/VBox/ValidationKit/bootsectors/bs3-cpu-instr-4.c32 (modified) (2 diffs)

trunk/src/VBox/ValidationKit/bootsectors/bs3-cpu-instr-4.c32

@@ -130 +130 @@
 /* The maximum integer value (all 52 + 1 implied bit of the fraction part set) without losing precision. */
 #define BS3_FP64_NORMAL_SAFE_INT_MAX(a_Sign)  RTFLOAT64U_INIT_C(a_Sign, BS3_FP64_FRACTION_NORMAL_MAX, BS3_FP64_EXP_BIAS + BS3_FP64_FRACTION_BITS)
+/* The minimum integer value without losing precision. */
+#define BS3_FP64_NORMAL_SAFE_INT_MIN(a_Sign)  RTFLOAT64U_INIT_C(a_Sign, 0, 1)
 
 
@@ -1473 +1475 @@
               /*daz,fz,rc*/ 0, 0, X86_MXCSR_RC_NEAREST,
               /*flags    */ 0 },
+    /*19*/{ { /*src2     */ { BS3_FP64_NORMAL_SAFE_INT_MIN(0), BS3_FP64_ZERO(0),                BS3_FP64_NORMAL_SAFE_INT_MIN(0), BS3_FP64_NORMAL_SAFE_INT_MIN(0) } },
+            { /*src1     */ { BS3_FP64_NORMAL_SAFE_INT_MIN(1), BS3_FP64_NORMAL_SAFE_INT_MIN(1), BS3_FP64_ZERO(0),                BS3_FP64_NORMAL_SAFE_INT_MIN(0) } },
+            { /* =>      */ { BS3_FP64_ZERO(0),                BS3_FP64_NORMAL_SAFE_INT_MIN(1), BS3_FP64_NORMAL_SAFE_INT_MIN(0), BS3_FP64_VAL(0, 0, 2)           } },
+              /*mask     */ ~X86_MXCSR_XCPT_MASK,
+              /*daz,fz,rc*/ 1, 1, X86_MXCSR_RC_ZERO,
+              /*flags    */ 0 },
     };