Abstract
As may have been learned from a computer organization text, there are many considerations that need to be taken into account and many different formats that can be used for machine language instructions. One of the first considerations is the size of the instruction. With a larger the instruction, more opcodes can be included, more registers can be referenced, and more memory locations can be addressed. Also, how a particular instruction is divided up indicates how many of each of the above can be included. For example, assume a 16-bit word is divided up as follows: bits 15-13 for the opcode, 12–11 for referencing registers, and 10-0 for addressing memory locations, as shown in Fig. 10.1.
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© 2011 Springer-Verlag London Limited
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Streib, J.T. (2011). Selected Machine Language Instructions. In: Guide to Assembly Language. Springer, London. https://doi.org/10.1007/978-0-85729-271-1_10
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DOI: https://doi.org/10.1007/978-0-85729-271-1_10
Publisher Name: Springer, London
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