helper for querying arch bittness in byte size

src/base/base_core.c

@@ -407,6 +407,12 @@ bit_size_from_arch(Arch arch)
   return arch_bitsize;
 }
 
+internal U64
+byte_size_from_arch(Arch arch)
+{
+  return bit_size_from_arch(arch) / 8;
+}
+
 internal U64
 max_instruction_size_from_arch(Arch arch)
 {