https://www.ndwiki.org/index.php?action=history&feed=atom&title=LBYT 2026-05-09T10:15:01Z Revision history for this page on the wiki MediaWiki 1.43.8 https://www.ndwiki.org/index.php?title=LBYT&diff=1461&oldid=prev 2010-07-24T16:06:04Z

<p>LBYT instruction</p> <p><b>New page</b></p><div>{{InstructionBox<br /> |Mnemonic=LBYT<br /> |Description=Load byte<br /> |Format=LBYT<br /> |Code=142&amp;nbsp;200<br /> |Affected=A<br /> |Architecture=[[ND-100]], [[ND-110 CPU|ND-110]]<br /> }}<br /> <br /> &#039;&#039;&#039;LBYT&#039;&#039;&#039; is an assembly instruction. A byte specified by the [[T register|T]] and [[X register|X registers]] is loaded into the [[A register]] bits 0-7, with the A register bits 8-15 cleared.<br /> <br /> As the ND-1x0&#039;s RAM is addressed by 16-bit words two registers are needed to address bytes. The T register points to a word, and the X register indicates the byte offset, counting from the left byte of the word pointed to by T.<br /> <br /> Word address = (T) + (X)/2<br /> If X is even (bit 0 = 0), the byte is in bits 8-15 of the word<br /> If X is odd (bit 0 = 1), the byte is in bits 0-7 of the word<br /> <br /> == References ==<br /> *{{ND-doc|06.014.02|Page 3-26}}<br /> *{{ND-doc|06.029.01|Page 27, page 91}}<br /> <br /> [[Category:ND-100 instructions]]</div>

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