diff --git a/compiler/inlineasm.go b/compiler/inlineasm.go
index 635aed98..01725a27 100644
--- a/compiler/inlineasm.go
+++ b/compiler/inlineasm.go
@@ -98,7 +98,10 @@ func (b *builder) createInlineAsmFull(instr *ssa.CallCommon) (llvm.Value, error)
 			case llvm.IntegerTypeKind:
 				constraints = append(constraints, "r")
 			case llvm.PointerTypeKind:
-				constraints = append(constraints, "*m")
+				// Memory references require a type in LLVM 14, probably as a
+				// preparation for opaque pointers.
+				err = b.makeError(instr.Pos(), "support for pointer operands was dropped in TinyGo 0.23")
+				return s
 			default:
 				err = b.makeError(instr.Pos(), "unknown type in inline assembly for value: "+name)
 				return s
diff --git a/src/machine/machine_k210.go b/src/machine/machine_k210.go
index 36440600..1a622f0c 100644
--- a/src/machine/machine_k210.go
+++ b/src/machine/machine_k210.go
@@ -236,10 +236,10 @@ func (p Pin) SetInterrupt(change PinChange, callback func(Pin)) error {
 			kendryte.GPIOHS.RISE_IE.ClearBits(1 << pin)
 			// Acknowledge interrupt atomically.
 			riscv.AsmFull(
-				"amoor.w {}, {mask}, {reg}",
+				"amoor.w {}, {mask}, ({reg})",
 				map[string]interface{}{
 					"mask": uint32(1 << pin),
-					"reg":  &kendryte.GPIOHS.RISE_IP.Reg,
+					"reg":  uintptr(unsafe.Pointer(&kendryte.GPIOHS.RISE_IP.Reg)),
 				})
 			kendryte.GPIOHS.RISE_IE.SetBits(1 << pin)
 		}
@@ -248,10 +248,10 @@ func (p Pin) SetInterrupt(change PinChange, callback func(Pin)) error {
 			kendryte.GPIOHS.FALL_IE.ClearBits(1 << pin)
 			// Acknowledge interrupt atomically.
 			riscv.AsmFull(
-				"amoor.w {}, {mask}, {reg}",
+				"amoor.w {}, {mask}, ({reg})",
 				map[string]interface{}{
 					"mask": uint32(1 << pin),
-					"reg":  &kendryte.GPIOHS.FALL_IP.Reg,
+					"reg":  uintptr(unsafe.Pointer(&kendryte.GPIOHS.FALL_IP.Reg)),
 				})
 			kendryte.GPIOHS.FALL_IE.SetBits(1 << pin)
 		}