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Little Computer 3, or LC-3, is a type of computer educational programming language, an assembly language, which is a type of low-level programming language.. It features a relatively simple instruction set, but can be used to write moderately complex assembly programs, and is a viable target for a C compiler.
and rX,rX,rX with X=0,1 are performance-probe no-ops. ori r2,r2,0 is a "group ending NOP" in some POWER CPUs [9] PIC microcontroller: NOP: 12 bits 0b000000000000 RISC-V: NOP: 4 0x00000013 ADDI x0, x0, 0: C.NOP: 2 0x0001 C.ADDI x0, 0. Only available on RISC-V CPUs that support the "C" (compressed instructions) extension. [10] Signetics 8X300 ...
In assembly language, directives, also referred to as pseudo-operations or "pseudo-ops", generally specify such information as the target machine, mark separations between code sections, define and change assembly-time variables, define macros, designate conditional and repeated code, define reserved memory areas, and so on.
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Pseudo-operation can refer to: A false flag operation, a ...
The types of operations may include arithmetic, data copying, logical operations, program control, and special instructions (e.g., CPUID). [10] In addition to the opcode, many instructions specify the data (known as operands) the operation will act upon, although some instructions may have implicit operands or none. [10]
GAS uses assembler directives (also known as pseudo ops), which are keywords beginning with a period that behave similarly to preprocessor directives in the C programming language. While most of the available assembler directives are valid regardless of the target architecture, some directives are machine dependent.
The rapid expansion of the Selous Scouts led to a drop in the quality of its personnel, which reduced the effectiveness of pseudo operations. This in turn caused the unit to increasingly undertake offensive operations where it directly attacked insurgents rather than gathered intelligence on them. [ 23 ]
In computer architecture, a branch predictor [1] [2] [3] [4] [5] is a digital circuit that tries to guess which way a branch (e.g., an if–then–else structure ...