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Ríomhairí, Ríomheolaíocht Is é an tslí is simplí is féidir le treoir oibreann a shonrú ná an oibreann féin a bheith sa chuid sin den treoir ina bhfuil an seoladh, in ionad seoladh nó faisnéis éigin eile a bheith ann ag léiriú cá bhfuil an oibreann. Tugtar oibreann láithreach ar oibreann dá leithéid mar go ngabhtar go huathúil ón gcuimhne í ag an am céanna a ngabhtar an treoir féin; mar sin bíonn sí ar fáil ar an bpointe lena húsáid.
Computers, Computer Science The simplest way for an instruction to specify an operand is for the address part of the instruction actually to contain the operand itself rather than an address or other information describing where the operand is. Such an operand is called an immediate operand beacause it is automatically fetched from memory at the same time the instruction itself is fetched; hence it is immediately available for use.