Threaded Mode | Linear Mode

Massimo Gnerucci · (This post was last modified: 02-18-2022 06:40 AM by Massimo Gnerucci.)

(02-18-2022 05:09 AM)dmh Wrote: So what is the best way to extract the FOCAL and machine code from the ROM and making it human readable?

I ended up using lifutils and then rom2raw and there's lots of XROM calls and it doesn't appear to have a mapping option to the actual name to make it more readable like decomp41 and decomp41 just lists the first program.

Interestingly the FOCAL code also includes synthetic programming.

I want to extract and disassemble the machine code too.

Sample output from rom2raw:

Code:

37▸LBL "JN" 38 CLA 39 ARCL 00 40 ALENG 41 X=0? 42 STO 00 43 RCL 00 44 SIGN 45 XROM 25,32 Non-local XROM 46 "◆◆◆)◆α◆" 47 X<> M Synthetic 48 STO d Synthetic 49 CLX 50 X<> M Synthetic 51 XROM 25,45 Non-local XROM 52 SF 25 53 ARCL L 54 XROM 25,15 Non-local XROM 55 FC? 25 56 GTO 08 57 "JOB:""

Those XROM 25 should be X functions: 25,32=RCLFLAG, 25,45=STOFLAG and 25,15=FLSIZE