SF, ZF, PF are modified while the result of the AND is discarded. The OF and CF flags are set to 0, while AF flag is undefined. There are 9 different opcodes for the TEST instruction depending on the type and size of the operands. It can compare 8-bit, 16-bit, 32-bit or 64-bit values. It can also compare registers, immediate values and register indirect values.">

TEST (x86 instruction) (original) (raw)

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In the x86 assembly language, the TEST instruction performs a bitwise AND on two operands. The flags SF, ZF, PF are modified while the result of the AND is discarded. The OF and CF flags are set to 0, while AF flag is undefined. There are 9 different opcodes for the TEST instruction depending on the type and size of the operands. It can compare 8-bit, 16-bit, 32-bit or 64-bit values. It can also compare registers, immediate values and register indirect values.

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dbo:abstract In the x86 assembly language, the TEST instruction performs a bitwise AND on two operands. The flags SF, ZF, PF are modified while the result of the AND is discarded. The OF and CF flags are set to 0, while AF flag is undefined. There are 9 different opcodes for the TEST instruction depending on the type and size of the operands. It can compare 8-bit, 16-bit, 32-bit or 64-bit values. It can also compare registers, immediate values and register indirect values. (en) 에서 TEST 명령어는 두 피연산자들에 대한 비트 연산인 AND를 수행한다. SF, ZF, PF 플래그가 수정되며 AND의 결과는 버려진다. OF와 CF 플래그는 0으로 설정되며 AF 플래그는 정의되지 않는다. 종류와 피연자들의 크기에 따라 TEST 명령어를 위한 9가지 다른 옵코드가 존재한다. 이것은 8비트, 16비트, 32비트 또는 64비트 값을 비교할 수 있다. 또한 레지스터, 즉시값 그리고 레지스터 간접 값을 비교할 수도 있다. (ko)
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rdfs:comment In the x86 assembly language, the TEST instruction performs a bitwise AND on two operands. The flags SF, ZF, PF are modified while the result of the AND is discarded. The OF and CF flags are set to 0, while AF flag is undefined. There are 9 different opcodes for the TEST instruction depending on the type and size of the operands. It can compare 8-bit, 16-bit, 32-bit or 64-bit values. It can also compare registers, immediate values and register indirect values. (en) 에서 TEST 명령어는 두 피연산자들에 대한 비트 연산인 AND를 수행한다. SF, ZF, PF 플래그가 수정되며 AND의 결과는 버려진다. OF와 CF 플래그는 0으로 설정되며 AF 플래그는 정의되지 않는다. 종류와 피연자들의 크기에 따라 TEST 명령어를 위한 9가지 다른 옵코드가 존재한다. 이것은 8비트, 16비트, 32비트 또는 64비트 값을 비교할 수 있다. 또한 레지스터, 즉시값 그리고 레지스터 간접 값을 비교할 수도 있다. (ko)
rdfs:label TEST (x86 명령어) (ko) TEST (x86 instruction) (en)
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