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/GCC 7

3.18.51 VAX Options

These ‘-m’ options are defined for the VAX:

-munix

Do not output certain jump instructions (aobleq and so on) that the Unix assembler for the VAX cannot handle across long ranges.

-mgnu

Do output those jump instructions, on the assumption that the GNU assembler is being used.

-mg

Output code for G-format floating-point numbers instead of D-format.

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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-7.1.0/gcc/VAX-Options.html