Hello,

I'm currently working to port CMON51 (http://cmon51.sourceforge.net/) to my board.

With an older compiler version it worked and linked (I flashed a version to my board and it works nicely), but if I try to compile the source with the current version I get the following:

sdcc -c -DSFR_CODE_LOC=0x7ff8 -DXRAM_CODE_LOC=0x2000 8052.c
8052.c:203: warning 185: comparison of 'signed char' with 'unsigned char' requires promotion to int
sdcc -c cmon51.c
sdcc -c d51.c
sdcc -c step.c
sdcc --code-size 0x2000 --xram-loc 0x1f00 --xram-size 0x100 8052.rel cmon51.rel d51.rel step.rel
?ASlink-Error-Could not get 20 consecutive bytes in internal RAM for area DSEG.
make: *** [8052.hex] Fehler 1

 

My SDCC has the version:

$ sdcc --version
SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.9.1 #5464 (May 27 2009) (UNIX)

 

(Freshly compiled SDCC build from today)

Any useful ideas?

Thanks!
Matthias