74 fn map_register(r: u8) -> u8 {  in map_register()  function
500                 if map_register(1) != RDX {  in jit_compile()
501                     self.emit_mov(mem, RDX, map_register(1));  in jit_compile()
506                 if map_register(1) != RDI {  in jit_compile()
507                     self.emit_mov(mem, RDI, map_register(1));  in jit_compile()
522                 if map_register(1) != RDI {  in jit_compile()
523                     self.emit_mov(mem, RDI, map_register(1));  in jit_compile()
529         self.emit_mov(mem, RSP, map_register(10));  in jit_compile()
542             let dst = map_register(insn.dst);  in jit_compile()
543             let src = map_register(insn.src);  in jit_compile()
936         if map_register(0) != RAX {  in jit_compile()
937             self.emit_mov(mem, map_register(0), RAX);  in jit_compile()