I wonder how useful arbitrary-width integers would be for SDCC users.

_ExtInt(N) would be an N-bit integer type.

E.e. one could have an unsigned 24-bit integer (in 3 bytes) via

unsigned _ExtInt(24) i;

or a 23-bit type (3 bytes in memory, 23 value bits and 1 padding bit):

unsigned _ExtInt(23) i;

If such a type is introduced, would you prefer this type to exempt from
integer promotion?

Philipp


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