mathematics, an operand is the object of a mathematical operation, i.e., it is the object or quantity that is operated on. Unknown operands in equalities...
8 KB (1,163 words) - 15:50, 13 March 2025
Instruction set architecture (redirect from 0-operand instruction set)
(TTA), only operand(s). Most stack machines have "0-operand" instruction sets in which arithmetic and logical operations lack any operand specifier fields;...
35 KB (4,329 words) - 19:12, 27 June 2025
units (GPUs). The inputs to an ALU are the data to be operated on, called operands, and a code indicating the operation to be performed (opcode); the ALU's...
27 KB (3,326 words) - 20:14, 20 June 2025
In electronic low power digital synchronous circuit design, operand isolation is a technique for minimizing the energy overhead associated with redundant...
2 KB (229 words) - 17:38, 4 May 2022
bitwise operations are presented as two-operand instructions where the result replaces one of the input operands. On simple low-cost processors, typically...
31 KB (3,832 words) - 16:45, 16 June 2025
Operand forwarding (or data forwarding) is an optimization in pipelined CPUs to limit performance deficits which occur due to pipeline stalls. A data...
4 KB (229 words) - 10:04, 13 March 2022
two-operand form a ← a + b can now use a non-destructive three-operand form c ← a + b, preserving both source operands. Originally, AVX's three-operand format...
51 KB (4,089 words) - 23:38, 15 May 2025
decrement operators are unary operators that increase or decrease their operand by one. They are commonly found in imperative programming languages. C-like...
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operator, often written ?:, is a binary operator that evaluates its first operand and returns it if its value is logically true (according to a language-dependent...
9 KB (868 words) - 06:53, 8 June 2025
Pentium F00F bug (redirect from Invalid operand with locked CMPXCHG8B instruction)
one offending instruction. More formally, the bug is called the invalid operand with locked CMPXCHG8B instruction bug. In the x86 architecture, the byte...
12 KB (1,583 words) - 03:50, 19 June 2025
When the operand is a destination (INC operand, DEC operand) or the operation already includes an immediate source (MOV operand,#data, CJNE operand,#data...
58 KB (6,421 words) - 06:42, 24 June 2025
operator), there is a sequence point after the evaluation of the first operand. Most of the operators available in C and C++ are also available in other...
43 KB (1,963 words) - 02:44, 23 April 2025
most modern and widely used. The and of a set of operands is true if and only if all of its operands are true, i.e., A ∧ B {\displaystyle A\land B} is...
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processor register (or an assigned memory location) used for pointing to operand addresses during the run of a program. It is useful for stepping through...
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for a method call has an "operand stack" and an array of "local variables".: 2.6 The operand stack is used for passing operands to computations and for...
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machine model. Stack machine (0-operand machine) Accumulator machine (1-operand machine) Register machine (2,3,... operand machine) Random-access machine...
4 KB (381 words) - 21:54, 12 March 2025
of two operands that are expected to be numbers) that favor numbers — if just one of the operands is a NaN then the value of the other operand is returned...
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can additionally specify that the rows are the first operand and the columns are the second operand. This condensed notation is particularly useful in discussing...
43 KB (3,307 words) - 04:06, 21 June 2025
representation of AND which does its work on the bits of the operands rather than the truth value of the operands. Bitwise binary AND performs logical conjunction...
16 KB (1,868 words) - 16:16, 31 March 2025
a 16-bit operand size, the address is ANDed with 00FFFFFFh. On Intel (but not AMD) CPUs, the SGDT and SIDT instructions with a 16-bit operand size is –...
263 KB (14,911 words) - 01:23, 19 June 2025
architecture identify the operand(s) of each instruction. An addressing mode specifies how to calculate the effective memory address of an operand by using information...
50 KB (6,327 words) - 16:51, 23 June 2025
constant field and a set of instructions that take XMM0 as an implicit third operand. Several of these instructions are enabled by the single-cycle shuffle...
23 KB (1,583 words) - 22:51, 21 June 2025
instructions have a three-operand format, in that they have two operands representing values for the address and one operand for the register to read or...
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parentheses. If an operand is both preceded and followed by operators (for example, ^ 3 ^), and those operators have equal precedence, then the operand may be used...
11 KB (1,286 words) - 20:08, 4 May 2024
up to 4 operands. Like the VEX coding scheme, the EVEX prefix unifies existing opcode prefixes and escape codes, memory addressing and operand length modifiers...
12 KB (1,161 words) - 01:20, 19 June 2025
first operand is both the first source operand and the destination operand. fsubr and fdivr should be singled out as first swapping the source operands before...
57 KB (6,630 words) - 23:44, 19 June 2025
with a complementing subtractor. The first operand is passed to the subtract unmodified, the second operand is complemented, and the subtraction generates...
11 KB (1,341 words) - 22:27, 15 June 2024
sometimes termed a signed shift (though it is not restricted to signed operands). The two basic types are the arithmetic left shift and the arithmetic...
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integer formats. In 64-bit mode, instructions are modified to support 64-bit operands and 64-bit addressing mode. The x86-64 architecture defines a compatibility...
125 KB (12,493 words) - 12:06, 24 June 2025
the destination. The four-operand form (FMA4) allows a, b, c and d to be four different registers, while the three-operand form (FMA3) requires that d...
18 KB (1,383 words) - 14:30, 18 April 2025