>I've been toying with the idea of having a text file (somewhat like the control file) that would be read at runtime to set up the SFR names.

You could use the file compiler.h mentioned here:
http://www.8052.com/forum/read.phtml?id=116161
to at least achieve part of this.
And thus make use of a _shared_ header file for both C and D52:)

How to? Fetch compiler.h and cc2430.h from here:
http://sdcc.svn.sourceforge.net/viewvc/sd...ude/mcs51/
and put them in one directory.

Then add this snippet:

/** D52 disassembler
  * http://www.8052.com/users/disasm/
 */
#elif defined __D52__
# define SBIT(name, addr, bit)  k addr + bit name ;
# define SFR(name, addr)        f addr name
# define SFRX(name, addr)       s addr name
# define SFR16(name, addr)      s addr name
# define SFR16E(name, fulladdr) ; not supported
# define SFR32(name, addr)      s addr name
# define SFR32E(name, fulladdr) ; not supported

into compiler.h .

If you then run a C-preprocessor over the header file (taking gcc here, but others should be fine too)

gcc -E cc2430.h -I. -D__D52__=1

the header file is processed to:

# 1 "./compiler.h" 1
# 30 "cc2430.h" 2
# 54 "cc2430.h"
f 0x80 P0;
   k 0x80 + 0 P0_0 ;;
   k 0x80 + 1 P0_1 ;;
   k 0x80 + 2 P0_2 ;;
   k 0x80 + 3 P0_3 ;;
   k 0x80 + 4 P0_4 ;;
   k 0x80 + 5 P0_5 ;;
   k 0x80 + 6 P0_6 ;;
   k 0x80 + 7 P0_7 ;;
f 0x81 SP;
f 0x82 DPL0;
f 0x83 DPH0;
f 0x84 DPL1;
f 0x85 DPH1;

[..]

s 0xDF02 MDMCTRL0H;
s 0xDF03 MDMCTRL0L;
s 0xDF04 MDMCTRL1H;
s 0xDF05 MDMCTRL1L;
s 0xDF06 RSSIH;

[..]

Apparently I obmitted some of the 381 lines:)

>along with the patch to allow decimal numbers in the control file.

(using '#' as prefix for decimal notation would upset the C-preprocessor.)

Greetings,

Frieder