diff --git a/artiq/coredevice/ad9910.py b/artiq/coredevice/ad9910.py
index e2600d6ac..39d2adfa6 100644
--- a/artiq/coredevice/ad9910.py
+++ b/artiq/coredevice/ad9910.py
@@ -332,7 +332,7 @@ class AD9910:
         self.bus.write(0)
         hi = self.bus.read()
         lo = self.bus.read()
-        return (int64(hi) << int64(32)) | int64(lo)
+        return (int64(hi) << 32) | int64(lo)
 
     @kernel
     def write64(self, addr: int32, data_high: int32, data_low: int32):
@@ -633,8 +633,8 @@ class AD9910:
         data = int64(self.read64(_AD9910_REG_PROFILE0 + profile))
         # Extract and return fields
         ftw = int32(data)
-        pow_ = int32(data >> int64(32)) & 0xffff
-        asf = int32(data >> int64(48)) & 0x3fff
+        pow_ = int32(data >> 32) & 0xffff
+        asf = int32(data >> 48) & 0x3fff
         return ftw, pow_, asf
 
     @kernel
diff --git a/artiq/coredevice/ad9912.py b/artiq/coredevice/ad9912.py
index 44b2109cb..651d051c5 100644
--- a/artiq/coredevice/ad9912.py
+++ b/artiq/coredevice/ad9912.py
@@ -189,7 +189,7 @@ class AD9912:
         self.bus.write((AD9912_POW1 << 16) | (3 << 29))
         self.bus.set_config_mu(SPI_CONFIG, 32,
                                SPIT_DDS_WR, self.chip_select)
-        self.bus.write((pow_ << 16) | (int32(ftw >> int64(32)) & 0xffff))
+        self.bus.write((pow_ << 16) | (int32(ftw >> 32) & 0xffff))
         self.bus.set_config_mu(SPI_CONFIG | SPI_END, 32,
                                SPIT_DDS_WR, self.chip_select)
         self.bus.write(int32(ftw))
@@ -209,7 +209,7 @@ class AD9912:
         self.core.break_realtime()  # Regain slack to perform second read
         low = self.read(AD9912_FTW3, 4)
         # Extract and return fields
-        ftw = (int64(high & 0xffff) << int64(32)) | (int64(low) & int64(0xffffffff))
+        ftw = (int64(high & 0xffff) << 32) | (int64(low) & int64(0xffffffff))
         pow_ = (high >> 16) & 0x3fff
         return ftw, pow_
 
@@ -219,7 +219,7 @@ class AD9912:
         frequency.
         """
         return round64(self.ftw_per_hz * frequency) & (
-                (int64(1) << int64(48)) - int64(1))
+                (int64(1) << 48) - int64(1))
 
     @portable
     def ftw_to_frequency(self, ftw: int64) -> float:
diff --git a/artiq/coredevice/adf5356.py b/artiq/coredevice/adf5356.py
index 8376997b6..11af0d6a0 100644
--- a/artiq/coredevice/adf5356.py
+++ b/artiq/coredevice/adf5356.py
@@ -201,7 +201,7 @@ class ADF5356:
         # select minimal output divider
         rf_div_sel = 0
         while freq < ADF5356_MIN_VCO_FREQ:
-            freq <<= int64(1)
+            freq <<= 1
             rf_div_sel += 1
 
         if (1 << rf_div_sel) > 64:
@@ -274,7 +274,7 @@ class ADF5356:
 
             # calculate PLL at f_pfd/2
             n, frac1, (frac2_msb, frac2_lsb), (mod2_msb, mod2_lsb) = calculate_pll(
-                self.f_vco(), f_pfd >> int64(1)
+                self.f_vco(), f_pfd >> 1
             )
             self.core.delay(200. * us)     # Slack
 
@@ -596,8 +596,8 @@ def calculate_pll(f_vco: int64, f_pfd: int64) -> tuple[int32, int32, tuple[int32
     mod2 = f_pfd
 
     while mod2 > int64(ADF5356_MAX_MODULUS2):
-        mod2 >>= int64(1)
-        frac2 >>= int64(1)
+        mod2 >>= 1
+        frac2 >>= 1
 
     gcd_div = gcd(frac2, mod2)
     mod2 //= gcd_div
diff --git a/artiq/coredevice/shuttler.py b/artiq/coredevice/shuttler.py
index cc75dc9b0..a9d8596ef 100644
--- a/artiq/coredevice/shuttler.py
+++ b/artiq/coredevice/shuttler.py
@@ -176,11 +176,11 @@ class DCBias:
             a1,
             a1 >> 16,
             int32(a2 & int64(0xFFFF)),
-            int32((a2 >> int64(16)) & int64(0xFFFF)),
-            int32((a2 >> int64(32)) & int64(0xFFFF)),
+            int32((a2 >> 16) & int64(0xFFFF)),
+            int32((a2 >> 32) & int64(0xFFFF)),
             int32(a3 & int64(0xFFFF)),
-            int32((a3 >> int64(16)) & int64(0xFFFF)),
-            int32((a3 >> int64(32)) & int64(0xFFFF)),
+            int32((a3 >> 16) & int64(0xFFFF)),
+            int32((a3 >> 32) & int64(0xFFFF)),
         ]
 
         for i in range(len(coef_words)):
@@ -269,11 +269,11 @@ class DDS:
             b1,
             b1 >> 16,
             int32(b2 & int64(0xFFFF)),
-            int32((b2 >> int64(16)) & int64(0xFFFF)),
-            int32((b2 >> int64(32)) & int64(0xFFFF)),
+            int32((b2 >> 16) & int64(0xFFFF)),
+            int32((b2 >> 32) & int64(0xFFFF)),
             int32(b3 & int64(0xFFFF)),
-            int32((b3 >> int64(16)) & int64(0xFFFF)),
-            int32((b3 >> int64(32)) & int64(0xFFFF)),
+            int32((b3 >> 16) & int64(0xFFFF)),
+            int32((b3 >> 32) & int64(0xFFFF)),
             c0,
             c1,
             c1 >> 16,