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Reference.org
Register transfer language
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<p>In <a href="/facts/Computer_science/lN3pEyPz">computer science</a>, register transfer language (RTL) is a kind of <a href="/facts/Intermediate_representation/s0qRrbfh">intermediate representation</a> (IR) that is very close to <a href="/facts/Assembly_language/7XuV0cla">assembly language</a>, such as that which is used in a <a href="/facts/Compiler/WNfCDFJe">compiler</a>. It is used to describe data flow at the <a href="/facts/Register-transfer_level/SDA3ET30">register-transfer level</a> of an <a href="/facts/Computer_architecture/tHtwxgR2">architecture</a>. Academic papers and textbooks often use a form of RTL as an architecture-neutral assembly language. RTL is used as the name of a specific intermediate representation in several compilers, including the <a href="/facts/GNU_Compiler_Collection/t07jh01k">GNU Compiler Collection</a> (GCC), Zephyr, and the European compiler projects CerCo and <a href="/facts/CompCert/pTVYRnuw">CompCert</a>. </p>