diff --git a/libs/jit/include/pslang/jit/helpers.hpp b/libs/jit/include/pslang/jit/helpers.hpp
new file mode 100644
index 0000000..946c61b
--- /dev/null
+++ b/libs/jit/include/pslang/jit/helpers.hpp
@@ -0,0 +1,52 @@
+#pragma once
+
+#include <cstdint>
+#include <vector>
+#include <stdexcept>
+#include <format>
+
+namespace pslang::jit
+{
+
+	inline std::uint8_t operator""_ub(unsigned long long arg)
+	{
+		return (std::uint8_t)arg;
+	}
+
+	template <typename T>
+	static void check_bits(T value, std::uint32_t bits, char const * message)
+	{
+		auto mask = (T(1) << bits) - T(1);
+		bool good = true;
+		if (value >= T(0))
+		{
+			good = value == (value & mask);
+		}
+		else
+		{
+			good = (value & (~mask)) == (T(-1) & (~mask));
+		}
+		if (!good)
+		{
+			T min, max;
+			if (std::is_unsigned_v<T>)
+			{
+				min = 0;
+				max = mask;
+			}
+			else
+			{
+				max = (T(1) << (bits - 1)) - 1;
+				min = - (max + 1);
+			}
+			throw std::runtime_error(std::format("{}: {} not in range [{}..{})", message, value, min, max));
+		}
+	}
+
+	template <typename ... Args>
+	void push_bytes(std::vector<std::uint8_t> & code, Args ... args)
+	{
+		(code.insert(code.end(), (std::uint8_t const *)(&args), (std::uint8_t const *)(&args) + sizeof(args)), ...);
+	}
+
+}
diff --git a/libs/jit/source/arch/macos_aarch64/instruction_builder.cpp b/libs/jit/source/arch/macos_aarch64/instruction_builder.cpp
index 1cfac55..9a56e72 100644
--- a/libs/jit/source/arch/macos_aarch64/instruction_builder.cpp
+++ b/libs/jit/source/arch/macos_aarch64/instruction_builder.cpp
@@ -1,40 +1,9 @@
 #include <pslang/jit/arch/macos_aarch64/instruction_builder.hpp>
-
-#include <format>
+#include <pslang/jit/helpers.hpp>
 
 namespace pslang::jit::macos_aarch64
 {
 
-	template <typename T>
-	static void check_bits(T value, std::uint32_t bits, char const * message)
-	{
-		auto mask = (T(1) << bits) - T(1);
-		bool good = true;
-		if (value >= T(0))
-		{
-			good = value == (value & mask);
-		}
-		else
-		{
-			good = (value & (~mask)) == (T(-1) & (~mask));
-		}
-		if (!good)
-		{
-			T min, max;
-			if (std::is_unsigned_v<T>)
-			{
-				min = 0;
-				max = mask;
-			}
-			else
-			{
-				max = (T(1) << (bits - 1)) - 1;
-				min = - (max + 1);
-			}
-			throw std::runtime_error(std::format("{}: {} not in range [{}..{})", message, value, min, max));
-		}
-	}
-
 	static constexpr std::uint32_t REG_MASK = 0x1fu;
 
 	void instruction_builder::nop()