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C model wanted for 68hc11

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C model wanted for 68hc11

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BigEd Joined: Wed Jan 09, 2013 6:54 pm Posts: 1803	C model wanted for 68hc11 Elsewhere, user "legacy" asked Quote: i'd like to put a 68hc11 cpu description on ATMEGA32 in order to emulate things: any project around ? I'm not aware of such a thing but I have two ideas: - you start from one of the existing 6502 on AVR projects which have published source code and modify it for 68xx. For example this AppleII project, or this or this. - you make use of code from a command-line simulator such as the one at http://www.cs.uml.edu/~fredm/cher/proje ... d/6811sim/ which looks like this: Code: ? (empty line) step once s [n] step n times b [add [n]] set break at add which will survive n hits g [add [n]] set pc to add, step n times l [add [n]] list n lines of disassembly starting from pc R Reset memory, regs and reload code t [add [n]] set temporary break at add which will survive n hits q or EOF exit simulator ? print this list hit return to continue A 0C B CE t=0 D 611A0CCE X 7C802542 Y 22D008 breakpoints -> SP 002F PC F800 lds #00ff . . . . . . . . 0 1 2 3 4 5 6 7 8 9 a b c d e f 0000 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0010 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0020 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0030 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0040 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0050 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0060 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0070 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0080 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0090 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00a0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00b0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00c0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00d0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00e0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00f0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ s9 A DE B F0 t=27 D DEF0 X 7C802542 Y 22D008 breakpoints -> SP 00FA PC F811 psha . . . . N . . . 0 1 2 3 4 5 6 7 8 9 a b c d e f 0000 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0010 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0020 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0030 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0040 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0050 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0060 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0070 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0080 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 0090 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00a0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00b0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00c0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00d0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00e0 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa ................ 00f0 aa aa aa aa aa aa aa aa aa aa aa f0 12 34 56 78 .............4Vx Cheers Ed
Sat Jan 11, 2014 7:26 pm

Dr Jefyll Joined: Tue Jan 15, 2013 5:43 am Posts: 189	Re: C model wanted for 68hc11 BigEd wrote: - you start from one of the existing 6502 on AVR projects which have published source code and modify it for 68xx. The 68hc11 is highly similar to the original 6800. So if a 6800 emulator could be found, then that would probably be easier to modify than an emulator for 6502. BTW, legacy, can you tell us why the 68HC11 interests you? Just curious.... I've worked with 6809 and 68HC705, but never 6800 or 68HC11. cheers Jeff _________________ http://LaughtonElectronics.com
Sat Jan 11, 2014 8:50 pm

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