syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"tmm3:"}]}
source_snippet:         tmm3: tmm_reg = ["tmm3"] % x86_64_only,
context_before:         tmm2: tmm_reg = ["tmm2"] % x86_64_only,
context_after:         tmm4: tmm_reg = ["tmm4"] % x86_64_only,