coco3: Build SD card device descriptors for CoCo3FPGA Added "CC3FPGAFLAGS = $(AFLAGS) -DCC3FPGA=1 $(FLAGS)" to "level2/coco3/modules/makefile" for flagging Coco3FPGA specific features in modules sources. Added "llcoco3fpga", "ddsd0_coco3fpga", "sd0_coco3fpga", and "sd1_coco3fpga" to the "coco3/modules/makefile" - RBF section, which also now adds all to the "NITROS9/MODULES/RBF" on all disk images for building new Coco3FPGA disks from NitrOS9. Added new descriptor section to the "level2/coco3/modules/makefile" reflecting the new Coco3FPGA SD card descriptors and their flags.

* Disassembly by Os9disasm of xtoa.r

 section code

utoa: clra   
 clrb   
 pshs  d,u 
 ldu   8,s 
 bra   L0018 
itoa: clra   
 clrb   
 pshs  d,u 
 ldu   8,s 
 tst   6,s 
 bpl   L0018 
 inc   ,s 
 subd  6,s 
 std   6,s 
L0018 ldd   6,s 
 pshs  d 
 ldd   #$000a 
 lbsr  ccumod 
 addb  #$30 
 stb   ,u+ 
 ldd   6,s 
 pshs  d 
 ldd   #$000a 
 lbsr  ccudiv 
 std   6,s 
 bgt   L0018 
 tst   ,s 
 beq   L003c 
 ldb   #$2d 
 stb   ,u+ 
L003c clr   ,u 
 ldd   8,s 
 pshs  d 
 lbsr  reverse 
 leas  4,s 
 puls  u,pc 

 endsect