1 files changed, 8 insertions, 1 deletions
diff --git a/hw/intc/armv7m_nvic.c b/hw/intc/armv7m_nvic.c
index 9628ce876e..be3bc1f1f4 100644
--- a/hw/intc/armv7m_nvic.c
+++ b/hw/intc/armv7m_nvic.c
@@ -2068,7 +2068,14 @@ static void nvic_writel(NVICState *s, uint32_t offset, uint32_t value,
         break;
     case 0xf3c: /* FPDSCR */
         if (cpu_isar_feature(aa32_vfp_simd, cpu)) {
-            value &= 0x07c00000;
+            uint32_t mask = FPCR_AHP | FPCR_DN | FPCR_FZ | FPCR_RMODE_MASK;
+            if (cpu_isar_feature(any_fp16, cpu)) {
+                mask |= FPCR_FZ16;
+            }
+            value &= mask;
+            if (cpu_isar_feature(aa32_lob, cpu)) {
+                value |= 4 << FPCR_LTPSIZE_SHIFT;
+            }
             cpu->env.v7m.fpdscr[attrs.secure] = value;
         }
         break;