LARGE Compiler Directive

Abbreviation	LA
Arguments	None.
Default	SMALL
µVision	Options — Target — Memory Model.
Description	This directive selects the LARGE memory model where all variables and local data segments of functions and procedures reside (as defined) in the external data memory of the 8051 system. Up to 64 KBytes of external data memory may be accessed. This, however, requires the long and therefore inefficient form of data access through the data pointer (DPTR). Regardless of memory model type, you may declare variables in any of the 8051 memory ranges. However, placing frequently-used variables (such as loop counters and array indices) in internal data memory significantly improves system performance. Note The stack required for function calls is always placed in IDATA memory.
See Also	COMPACT, ROM, SMALL
Example	C51 SAMPLE.C LARGE #pragma large