where [BITS 32] directive?
in [ASM]
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From: CodeMonk on 14 Aug 2007 11:32 Frank Kotler wrote: > CodeMonk wrote: >> Frank Kotler wrote: >> >>> Herbert Kleebauer wrote: >>> >>>> Frank Kotler wrote: >>>> >>>> >>>>> And the >>>>> monochrome screen is at B0000h, not B80000h, if you care... >>>> >>>> >>>> >>>> As far I remember, it's neither B0000h nor B80000. DOS programming >>>> must be really dead when such essential values aren't correctly >>>> remembered. >>> >>> >>> Okay, refresh my memory... >>> >>> Best, >>> Frank >>> >> >> Both values contained an extra zero, but no big deal - it's like >> 'mispelling' a word during an Instant Messaging session, they know >> what you mean. > > If I'da meant "B000:0000" I would've said so. Are you guys telling me > the tut is correct? > > Best, > Frank Actually that's my bust, I read the "B80000" and assumed I knew what the actual issue was. Maybe next time I should read the whole thread first. I return you to your regularly scheduled program. :) - Scott
From: Herbert Kleebauer on 14 Aug 2007 13:01 Frank Kotler wrote: > >>>> And the > >>>> monochrome screen is at B0000h, not B80000h, if you care... > >>> > >>> As far I remember, it's neither B0000h nor B80000. DOS programming > >>> must be really dead when such essential values aren't correctly > >>> remembered. > >> > >> Okay, refresh my memory... > > > > Both values contained an extra zero, but no big deal - it's like > > 'mispelling' a word during an Instant Messaging session, they know what > > you mean. > > If I'da meant "B000:0000" I would've said so. Are you guys telling me > the tut is correct? Isn't it b8000 for text mode (and a0000 for graphics mode)?
From: SpooK on 14 Aug 2007 13:15 On Aug 14, 12:01 pm, Herbert Kleebauer <k...(a)unibwm.de> wrote: > Frank Kotler wrote: > > >>>> And the > > >>>> monochrome screen is at B0000h, not B80000h, if you care... > > > >>> As far I remember, it's neither B0000h nor B80000. DOS programming > > >>> must be really dead when such essential values aren't correctly > > >>> remembered. > > > >> Okay, refresh my memory... > > > > Both values contained an extra zero, but no big deal - it's like > > > 'mispelling' a word during an Instant Messaging session, they know what > > > you mean. > > > If I'da meant "B000:0000" I would've said so. Are you guys telling me > > the tut is correct? > > Isn't it b8000 for text mode (and a0000 for graphics mode)? Correct... mostly. The base addresses are as follows... MONOCHROME = B000:0000 (0x000B0000) COLOR = B800:0000 (0x000B8000) GRAPHICS = A000:0000 (0x000A0000)
From: Herbert Kleebauer on 14 Aug 2007 13:27 SpooK wrote: > > On Aug 14, 12:01 pm, Herbert Kleebauer <k...(a)unibwm.de> wrote: > > Frank Kotler wrote: > > > >>>> And the > > > >>>> monochrome screen is at B0000h, not B80000h, if you care... > > > > > >>> As far I remember, it's neither B0000h nor B80000. DOS programming > > > >>> must be really dead when such essential values aren't correctly > > > >>> remembered. > > > > > >> Okay, refresh my memory... > > > > > > Both values contained an extra zero, but no big deal - it's like > > > > 'mispelling' a word during an Instant Messaging session, they know what > > > > you mean. > > > > > If I'da meant "B000:0000" I would've said so. Are you guys telling me > > > the tut is correct? > > > > Isn't it b8000 for text mode (and a0000 for graphics mode)? > > Correct... mostly. The base addresses are as follows... > > MONOCHROME = B000:0000 (0x000B0000) > COLOR = B800:0000 (0x000B8000) > GRAPHICS = A000:0000 (0x000A0000) Then sorry Frank. I'm old, but not old enough to have programmed a IBM PC with something older than VGA (at that time I used the superior Atari ST).
From: opexoc on 14 Aug 2007 13:56
On 14 Sie, 14:46, Frank Kotler <fbkot...(a)verizon.net> wrote: > > Another question: Is it really necessary to enable A20 line to enter > > PM? > > If you want to access "odd megabytes", yeah. Actually, why "odd megabytes"? Why A20 line decide if odd megabytes are available? |