How about trying a similar method
for sprintf ?? any ideas ????

recompile vprintf.c so it includes support for floats. Something like this :

sdcc -c --model-large -DUSE_FLOATS vprintf.c

the path for the file is:
/sdcc/lib/src/vprintf.c

then copy vprintf.rel and vprintf.asm to:
/sdcc/lib/large


karthik bala guru