Gcc/10.2.0/gcc/M32R 002fD-Variable-Attributes
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6.34.7 M32R/D Variable Attributes
One attribute is currently defined for the M32R/D.
model (model-name)
Use this attribute on the M32R/D to set the addressability of an object. The identifier
model-name
is one ofsmall
,medium
, orlarge
, representing each of the code models.Small model objects live in the lower 16MB of memory (so that their addresses can be loaded with the
ld24
instruction).Medium and large model objects may live anywhere in the 32-bit address space (the compiler generates
seth/add3
instructions to load their addresses).