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__REGISTER_PREFIX__ |
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This macro expands to a single token (not a string constant) which is
the prefix applied to CPU register names in assembly language for this
target. You can use it to write assembly that is usable in multiple
environments. For example, in the m68k-aout
environment it
expands to nothing, but in the m68k-coff
environment (as TIGCC is) it expands
to a single %
.