diff --git a/library/core/src/num/dec2flt/algorithm.rs b/library/core/src/num/dec2flt/algorithm.rs
index a88bcdbaed0a2..313b6870ac9d3 100644
--- a/library/core/src/num/dec2flt/algorithm.rs
+++ b/library/core/src/num/dec2flt/algorithm.rs
@@ -62,7 +62,7 @@ mod fpu_precision {
         // any `u16`
         unsafe {
             asm!(
-                "fldcw ({})",
+                "fldcw word ptr [{}]",
                 in(reg) &cw,
                 options(nostack),
             )
@@ -86,7 +86,7 @@ mod fpu_precision {
         // any `u16`
         unsafe {
             asm!(
-                "fnstcw ({})",
+                "fnstcw word ptr [{}]",
                 in(reg) &mut cw,
                 options(nostack),
             )
diff --git a/library/std/src/sys/sgx/abi/mem.rs b/library/std/src/sys/sgx/abi/mem.rs
index 9c593a0051114..1e743894a9fea 100644
--- a/library/std/src/sys/sgx/abi/mem.rs
+++ b/library/std/src/sys/sgx/abi/mem.rs
@@ -36,7 +36,7 @@ pub fn image_base() -> u64 {
     let base: u64;
     unsafe {
         asm!(
-            "lea IMAGE_BASE(%rip), {}",
+            "lea {}, qword ptr [rip + IMAGE_BASE]",
             lateout(reg) base,
             options(nostack, preserves_flags, nomem, pure),
         )