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In the x86 computer architecture, HLT (halt) is an assembly language instruction which halts the central processing unit (CPU) until the next external interrupt is fired. [1] Interrupts are signals sent by hardware devices to the CPU alerting it that an event occurred to which it should react.
(0=32-bit, 1=64-bit) vvvv is an extra source register argument, normally the first non-r/m source argument for instructions with ≥3 register arguments. L is a vector length specifier. L=1 indicates 256-bit operation, L=0 indicates scalar or 128-bit operation.
Will change OperandSize from 16-bit to 32-bit if CS.D=0, or from 32-bit to 16-bit if CS.D=1. 67h: AddressSize override. Will change AddressSize from 16-bit to 32-bit if CS.D=0, or from 32-bit to 16-bit if CS.D=1. The 80386 also introduced the two new segment registers FS and GS as well as the x86 control, debug and test registers.
The Motorola 6800 microprocessor was the first for which an undocumented assembly mnemonic HCF became widely known. The operation codes (opcodes—the portions of the machine language instructions that specify an operation to be performed) hexadecimal 9D and DD were reported and given the unofficial mnemonic HCF in a December 1977 article by Gerry Wheeler in BYTE magazine on undocumented ...
Pages in category "x86 instructions" ... HLT (x86 instruction) I. INT (x86 instruction) ... X86 Bit manipulation instruction set;
The primary defining characteristic of IA-32 is the availability of 32-bit general-purpose processor registers (for example, EAX and EBX), 32-bit integer arithmetic and logical operations, 32-bit offsets within a segment in protected mode, and the translation of segmented addresses to 32-bit linear addresses. The designers took the opportunity ...
Printable version; In other projects ... HLT may refer to: Computing. HLT (x86 instruction) ... (ISO 639-3: hlt) Hurricane Liaison Team of the United States ...
An HLABE program mostly consists of data (byte) emission statements, 32-bit relocatable address statements, x86 control-transfer instructions, and various directives. In addition to translating the byte and relocatable address statements into the low-level object code format, HLABE also handles branch-displacement optimization (picking the ...