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On-Line Manuals
Cx51 User's Guide
None.
Dual data pointers are not used.
Options — Target — Use multiple DPTR registers.
The NOMODH2 directive disables additional data pointer support. The compiler does not use dual data pointers in the following library routines: memcpy, memmove, memcmp, strcpy, and strcmp.
MODH2
C51 SAMPLE.C NOMODH2 #pragma nomodh2