Microsoft KB Archive/25259

= How to Enable Math Coprocessor Instructions =

Article ID: 25259

Article Last Modified on 10/16/2003

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APPLIES TO


 * Microsoft Macro Assembler 5.1 Standard Edition
 * Microsoft Macro Assembler 5.1a
 * Microsoft Macro Assembler 6.0 Standard Edition
 * Microsoft Macro Assembler 6.0a
 * Microsoft Macro Assembler 6.0b

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This article was previously published under Q25259



SUMMARY
To enable 287 or 387 math coprocessor instructions, the type of the processor must be specified. You can perform this process by specifying the first entry in the program as one of the following types: .8086   for 8086 without 8087 math coprocessor .8087   for 8086 with 8087 math coprocessor .186    for 186 processor .286    for 286 without math coprocessor without privileged instructions .286P   for 286 without math coprocessor with privileged instructions .287    for 286 with math coprocessor .386    for 386 without math coprocessor without privileged instructions .386P   for 386 without math coprocessor with privileged instructions .387    for 386 with math coprocessor .486    for 486 with math coprocessor (new with MASM 6.0) .486P   for 486 with math coprocessor with privileged instructions (new with MASM 6.0)

.NO87   disables assembly of all coprocessor instructions

Additional query words: kbinf 5.10 5.10a 6.00 6.00a 6.00b

Keywords: KB25259

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