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- Xref: sparky comp.sys.ibm.pc.hardware:23287 comp.os.msdos.programmer:9002
- Path: sparky!uunet!olivea!mintaka.lcs.mit.edu!hal.gnu.ai.mit.edu!adair
- From: adair@hal.gnu.ai.mit.edu (Jonathan Edward Adair)
- Newsgroups: comp.sys.ibm.pc.hardware,comp.os.msdos.programmer
- Subject: Why only 6 bits of R,G, or B on a VGA?
- Message-ID: <1992Sep2.233455.27962@mintaka.lcs.mit.edu>
- Date: 2 Sep 92 23:34:55 GMT
- Sender: news@mintaka.lcs.mit.edu
- Organization: MIT Laboratory for Computer Science
- Lines: 25
-
- Does anyone understand why there are only 6 bits of each color
- available for the VGA pallette? I'm no hardware guru, but just
- from what I do know it seems that storing 8 bits of each color
- instead of six would probably be a very cheap mod. I also imagine
- that there isn't that much of a difference between an 8-bit DAC
- and a 6-bit DAC.
-
- So why not go to 8 bits of each?
-
- (The same IBM reasoning that gave us the 640k barrier? ...the
- 320x200x256 mode? ...and on and on...)
-
- Or is there some hardware consideration I'm missing?
-
- --
- Jonathan E. Adair - Programmer at Large /\
- adair@gnu.ai.mit.edu <- Best choice /<>\
- adair@cfrrisc1.cfr.usf.edu <- Works for now / \
- jonathan579@tampa.relay.ucm.org <- Works for now /______\
- adair@psycho.fidonet.org <- Shakey... We're Watching
- --
- --
- Jonathan E. Adair - Programmer at Large /\
- adair@gnu.ai.mit.edu <- Best choice /<>\
- adair@cfrrisc1.cfr.usf.edu <- Works for now / \
-