68000

• Docs
  68000ref.doc quick listing of instructions, with flags affected
  Motorola 68000 programmer's reference manual
  
• Disassemblers
  IRApc : disassembler found by Antiriad, comes from the amiga apparently. Includes a doc, can be compiled in linux.
  m68kdis : where it comes from, original source, modified source for the console (so the output looks more like a debuger !), and finally an old exe for those who can't compile it in windows (put this in the raine/neoraine directory to use it automatically from the console). Includes a man page, particularly clever at guessing the type of data it is processing, probably the best 68000 disassembler available (at least for pcs !). The modified source output is used directly in the console of raine.
  There is a debian package hosted here too for this.
  Jul 2014 : finally fixed the immediate arguments to be in hex if > 9 and bsr/jsr outside the range asked by the debuger are properly handled now.

68020

• Docs
  Motorola 68020 user's manual
• Disassemblers
  Use one of the 68000 disassemblers.

z80

• Docs
  Z80 user's manual
  The undocumented z80 documented
  z80 official zupport page
  
• Disassemblers
  dz80 is the one !
  Notice that in linux, dz80 is included in the d52 package (debian).
  I also included dz80 in the allegro debuger of older versions of raine, with permission of the author. But I'll probably keep it external if I use it in the console.

6502

• Docs
  (w)65c02 data sheet : includes instructions and everything. The 65c02 is an evolution of the 6502, this is the cpu used by the seta driver in raine (and not a 6502).
• Disassemblers
  A 6502 disassembler in perl !
  d65 a disassembler for 6502/65c02 (in C).