Gcc/10.2.0/gcc/V850-Variable-Attributes
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6.34.14 V850 Variable Attributes
These variable attributes are supported by the V850 back end:
sda
Use this attribute to explicitly place a variable in the small data area, which can hold up to 64 kilobytes.
tda
Use this attribute to explicitly place a variable in the tiny data area, which can hold up to 256 bytes in total.
zda
Use this attribute to explicitly place a variable in the first 32 kilobytes of memory.