[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: 6502 illegal opcodes questions

Subject: Re: 6502 illegal opcodes questions
From: Eric Smith <eric@brouhaha.com>
Date: 19 May 2006 00:47:36 -0700
Newsgroups: comp.sys.cbm, comp.sys.apple2, rec.games.video.classic
Organization: Eric Conspiracy Secret Labs
References: <444be7a0$0$11080$9b4e6d93@newsread4.arcor-online.net> <1147397570.212608.111710@i40g2000cwc.googlegroups.com> <bruce#fanboy.net-D1D0EB.09010612052006@news.newsreader.com> <b_2dnVaBwopOtvjZRVn-uQ@comcast.com> <1147498080.711381.146590@j33g2000cwa.googlegroups.com> <KZCdnYiWAoMhWPvZnZ2dnUVZ_vydnZ2d@comcast.com> <1147595673.053253.150710@i40g2000cwc.googlegroups.com> <txL9g.2486$mU6.2313@trnddc07> <1uqdnZJ9D8LcL_rZnZ2dnUVZ_sKdnZ2d@comcast.com> <cpg84e.uh8.ln@spuddy.org> <d4CdnR_y__CUmfXZnZ2dnUVZ_s-dnZ2d@comcast.com> <bruce#fanboy.net-453B34.11162815052006@news.newsreader.com> <kKCdnXMGZogpR_XZRVn-qw@comcast.com> <bruce#fanboy.net-DE2ECF.01020916052006@news.newsreader.com> <Q9OdnRNtFOKNFvTZnZ2dnUVZ_smdnZ2d@comcast.com> <e4h443$dco$1@rzsun03.rrz.uni-hamburg.de> <Xs6dnS44d4b5tvHZnZ2dnUVZ_v6dnZ2d@comcast.com> <3Icbg.952234$x96.54586@attbi_s72>
Sender: eric@ruckus.brouhaha.com
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3
Xref: g2news2.google.com comp.sys.cbm:15546 comp.sys.apple2:7880 rec.games.video.classic:5030

Jim Brain <brain@jbrain.com> writes:
> I don't think a PLA allows X (don't care) states.

Certainly it does.  That's one of the primary distinguishing characteristics
of a PLA as opposed to a ROM.

Eric

Follow-Ups:
- Re: 6502 illegal opcodes questions
  - From: Jim Brain <brain@jbrain.com>

References:
- 6502 illegal opcodes questions
  - From: Linards Ticmanis <ticmanis@gmx.de>
- Re: 6502 illegal opcodes questions
  - From: "mdj" <mdj.mdj@gmail.com>
- Re: 6502 illegal opcodes questions
  - From: Bruce Tomlin <bruce#fanboy.net@127.0.0.1>
- Re: 6502 illegal opcodes questions
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: 6502 illegal opcodes questions
  - From: heuser.marcus@freenet.de
- Re: 6502 illegal opcodes questions
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: 6502 illegal opcodes questions
  - From: heuser.marcus@freenet.de
- Re: 6502 illegal opcodes questions
  - From: "Sam Gillett" <samgillettnospam@diespammermsn.com>
- Re: 6502 illegal opcodes questions
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: 6502 illegal opcodes questions
  - From: usenet@spuddy.org (Stephen Harris)
- Re: 6502 illegal opcodes questions
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: 6502 illegal opcodes questions
  - From: Bruce Tomlin <bruce#fanboy.net@127.0.0.1>
- Re: 6502 illegal opcodes questions
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: 6502 illegal opcodes questions
  - From: Bruce Tomlin <bruce#fanboy.net@127.0.0.1>
- Re: 6502 illegal opcodes questions
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: 6502 illegal opcodes questions
  - From: John Selck <selck_j@informatik.hgv-hamburg.de>
- Re: 6502 illegal opcodes questions
  - From: "Michael J. Mahon" <mjmahon@aol.com>
- Re: 6502 illegal opcodes questions
  - From: Jim Brain <brain@jbrain.com>

Prev by Date: Re: 6502 illegal opcodes questions
Next by Date: Re: 6502 illegal opcodes questions
Previous by thread: Re: 6502 illegal opcodes questions
Next by thread: Re: 6502 illegal opcodes questions
Index(es):
- Date
- Thread