After reading this guys posts, and navigating through all of the local conversations amongst those who know, about those who don't know in this thread, it occurred to me we may have missed the most obvious answer here.

Pradheep states he doesn't seem to be able to access the upper 128 bytes of internal RAM in his processor, due to the complier telling him he's out of space at 128, but he thinks his chip has more...

Maybe his first line in his startup assembly code reads something like:

IDATALEN EQU 80H

and maybe it should read something like:

IDATALEN EQU 100H


or maybe he's declaring his variables (because the default value for SMALL model is DATA) all in the DATA space, and he could easily add a simple qualifier to a few of them like:

before:
unsigned int myvar = 0x0505;

after:
unsigned int idata myvar = 0x0505;

just thinking...