2022, Digital Design and Computer ArchitectureSarah L. Harris, David Harris Chapter Architecture 6.2.2 Operands: Registers, Memory, and Constants An instruction operates on operands. In Code Example 6.1 the var
in virtual machines, the operand stack is used to hold the operands for operations performed by them. the stack is typically implemented as a last-in-first-out (lifo) structure, meaning that the most recent operand that was pushed onto the stack is the first to be popped off when an ...
Each of the plurality of entries 620a-620n preferably (but not necessarily) uniquely corresponds to a particular code block, meaning that computation engine 520 applies the operation indicated by each entry 620 to each set of input operand(s) retrieved from the memory hierarchy by AGA 500 to ...
if there are too few, troubles such as the deterioration of process efficiency or impossibility processing may occur. Therefore, an optimum number, in the meaning described above, of the operand information holding units should be provided. This number can be easily obtained, e.g., by a simula...
meaning instructions can prematurely execute and produce future values for these registers, and N is some number greater than K. Each of the K registers has an architectural state pointer and a corresponding future state pointer. The architectural state pointer identifies an entry in the operand que...
In the above table, the index j runs from 0 to 1, meaning that during each clock cycle, the three bit groups of bits 0, 1, 2 and bits 2, 3, 4 are recoded by the cascaded recoders. It is noted that figure depicts one example of a suitable circuit for recoder 200, and that oth...
The result becomes R1=H'00000012. (For the meaning of the instructions, see the related chapter.) On the other hand, when the same operation is performed for the memory. MOV #0, R0.W MOV #H'12, R0.B MOV R0.W, R1.W cause the 8-bit data H'12 and MSB of the 32-bi...
meaning that a processor stack is heavily used when executing various instructions (e.g., Bytecodes), which instructions generally have a size of 8 bits. Java is a relatively “dense” language meaning that on average each instruction may perform a large number of functions compared to various...
The processor described herein is particularly suited for executing Java™ bytecodes or comparable code. As is well known, Java is particularly suited for embedded applications. Java is a relatively “dense” language meaning that on average each instruction may perform a large number of functions...
a definition that is different from the ordinary and customary meaning as understood by those skilled in the art, is intended to be implied by consistent usage of the term or phrase herein. To the extent that a term or phrase is intended to have a special meaning, i.e., a meaning other...