You have 8k of unpaged RAM at 0x2000-0x3FFF. Your 4.5k massive should fit this easily. If you can't use nonpaged RAM, then you should use global memory addressing, since your array won't fit 4kB sized R-page. To do so, you need to
1) edit PRM file to create big continuous RAM segment, specifying start and end of segment using global addresses:
SEGMENTS
...
RAM_FBFCFD = READ_WRITE DATA_FAR 0x0FB000'G TO 0xFDFFF'G; // 12k segment for global addressing
...
END
PLACEMENT
...
PAGED_G_RAM INTO RAM_FBFCFD; \
...
END
2) Define end declare your array between following DATA_SEG pragmas:
#pragma DATA_SEG __GPAGE_SEG PAGED_G_RAM
char arr[0x1250];
#pragma DATA_SEG DEFAULT
3) Make sure -D__FAR_DATA string is included in compiler options string.
