Questions tagged [instruction-set]
Instruction set refers to the Assembly syntax based on a processor's architecture that interacts with its registers within the processing unit itself. There is a large variety of instruction sets including: MIPS, ARM, 68HC11/12, x86, and so forth.
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6502 Extra Cycles on Page Cross
On the 6502 processor, when using the Absolute,X, Absolute,Y or (Indirect),Y addressing ...
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Designing instruction emulating swap on a MIPS ISA with only 2 registers
In a typical MIPS ISA, you have only 2 working registers. But you have a large number of ALU units.
How to design an instruction to emulate swap?
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What is the cost of increasing the number of register names?
Increasing the number of registers in a CPU, has the upside that more values can be kept in registers instead of having to spill to stack. It has some downsides, one of which is that more instruction ...
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MU0 register transfer level organization by adding index register
Q. Write the MU0 register transfer level organization by adding index register. Give the control logic for the following instructions and explanations.
LDA S,X ; A:=mem((S)+[X])
STA S,X ; mem((S)+[X])...
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what were the ENIAC's equivalent to the modern CPU's elements?
If a modern CPU contains these elements:
- 3 or more register units
- ALU
- control unit
and the CPU is connected to a RAM composed of several addresses, what ...
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8085;Condition CALL Instruction: if condition fails
In call instruction there are 5 machine cycles S,R,R,W,W (S is 6 T-states opcode fetch) and thus 18 T-states
In first machine cycle, t1-t4 is utilized for fetching the opcode and decoding it and t5-...
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DMA and Instruction Pipeline
My university resources say that DMA transfers the bunch of data from IO unit to memory or vice verse when processor is not busy with data and address bus. According to the resources, DMA Controller ...