Q38284: 80386 and 80387 Instruction Set

Article: Q38284
Product(s): See article
Version(s): 5.00 5.10 | 5.10
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | h_fortran s_pascal s_quickc | mspl13_c
Last Modified: 7-DEC-1988

Question:

According to the "Microsoft C 5.1 Optimizing Compiler User's Guide,"
you can generate 80286 and 80287 instructions with your high-level
language compilers. Can I also use the 80386 and 80387 instruction
set?

Response:

You can use the 80386 and 80387 chips. However, none of our products
generate true 80386 code, or use 32-bit addressing. Although our
compilers do not generate specific 80386 or 80387 code, the code which
is generated will run faster than on a 80286 and 80287.

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