Mail Archives: djgpp/2010/03/31/16:00:55
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| Date: | Wed, 31 Mar 2010 14:00:38 -0700 (PDT)
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| From: | Pablo Marty <tigrepotrazosalvaje AT yahoo DOT com DOT ar>
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| Subject: | Re: please help me with VBE
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| To: | djgpp AT delorie DOT com
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--0-1018433034-1270069238=:66281
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Hi,
It's supposed that this code will give me the function putpixel() much fast=
er, and the way to access the Video Memory much faster without bank switchi=
ng
can you tell me where to find the best (fastest) of this for DJGPP? ....
yes, I know Allegro already has it, now I'll try with it
--- El mar 30-mar-10, Rugxulo <rugxulo AT gmail DOT com> escribi=F3:
De: Rugxulo <rugxulo AT gmail DOT com>
Asunto: Re: please help me with VBE
Para: djgpp AT delorie DOT com
Fecha: martes, 30 de marzo de 2010, 19:52
Hi,
On Mar 29, 4:41=A0pm, Pablo Marty <tigrepotrazosalv DOT DOT DOT AT yahoo DOT com DOT ar>
wrote:
>
> I stole this, from 2 pages, from one the structs and from the other the c=
ode
What exactly is it supposed to do??=A0=A0=A0:-/
> I thought that with VBE my game would run faster under DOSBox than
> with VESA, because VBE treat the screen as just one array, ignoring the
> bank switching (or something like that)
Only old VESA 1.2 uses bankswitching. VESA 2.0 doesn't need it, and
99% of all cards support 2.0 these days (not true back in mid 90s).
Allegro should automatically choose the best graphics mode for you ...
if you let it. However, DOSBox is a full cpu emulator, hence it's
inherently slower than NTVDM + V86 mode (which no longer supports
graphics). The best you can do is close unnecessary background
processes and turn up the "cycles" (repeatedly press Ctrl-F12, I
think). Or try DOSEMU under Linux (much faster, V86 mode!!).
> I couldn't compile it .... does someone know where to find it more detail=
ed,
> or just the complete code without errors to use linear framebuffer with V=
BE?
> And about FreeDOS it's impossible install it without killing the actual s=
ystem ....
> I'll have to use DOSBox
What installed? VESA should be built into your BIOS. You can even
alternately use UNIVBE for older machines. (confused by the confusion)
=0A=0A=0A Yahoo! Cocina=0A=0AEncontra las mejores recetas con Yahoo! C=
ocina.=0A=0A=0Ahttp://ar.mujer.yahoo.com/cocina/
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<table cellspacing=3D"0" cellpadding=3D"0" border=3D"0" ><tr><td valign=3D"=
top" style=3D"font: inherit;"><DIV>Hi,</DIV>
<DIV>It's supposed that this code will give me the function putpixel() much=
faster, and the way to access the Video Memory much faster without bank sw=
itching</DIV>
<DIV>can you tell me where to find the best (fastest) of this for DJGPP? ..=
..</DIV>
<DIV>yes, I know Allegro already has it, now I'll try with it</DIV>
<DIV><BR><BR>--- El <B>mar 30-mar-10, Rugxulo <I><rugxulo AT gmail DOT com><=
/I></B> escribi=F3:<BR></DIV>
<BLOCKQUOTE style=3D"BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5=
px; MARGIN-LEFT: 5px"><BR>De: Rugxulo <rugxulo AT gmail DOT com><BR>Asunto: =
Re: please help me with VBE<BR>Para: djgpp AT delorie DOT com<BR>Fecha: martes, 30=
de marzo de 2010, 19:52<BR><BR>
<DIV class=3DplainMail>Hi,<BR><BR>On Mar 29, 4:41 pm, Pablo Marty <=
<A href=3D"http://ar.mc451.mail.yahoo.com/mc/compose?to=3Dtigrepotrazosalv.=
..@yahoo.com.ar" ymailto=3D"mailto:tigrepotrazosalv DOT DOT DOT AT yahoo DOT com DOT ar">tigrep=
otrazosalv DOT DOT DOT AT yahoo DOT com DOT ar</A>><BR>wrote:<BR>><BR>> I stole this, =
from 2 pages, from one the structs and from the other the code<BR><BR>What =
exactly is it supposed to do?? :-/<BR><BR>> I thought t=
hat with VBE my game would run faster under DOSBox than<BR>> with VESA, =
because VBE treat the screen as just one array, ignoring the<BR>> bank s=
witching (or something like that)<BR><BR>Only old VESA 1.2 uses bankswitchi=
ng. VESA 2.0 doesn't need it, and<BR>99% of all cards support 2.0 these day=
s (not true back in mid 90s).<BR><BR>Allegro should automatically choose th=
e best graphics mode for you ...<BR>if you let it. However, DOSBox is a ful=
l cpu emulator, hence it's<BR>inherently slower than NTVDM + V86 mode (whic=
h
no longer supports<BR>graphics). The best you can do is close unnecessary =
background<BR>processes and turn up the "cycles" (repeatedly press Ctrl-F12=
, I<BR>think). Or try DOSEMU under Linux (much faster, V86 mode!!).<BR><BR>=
> I couldn't compile it .... does someone know where to find it more det=
ailed,<BR>> or just the complete code without errors to use linear frame=
buffer with VBE?<BR>> And about FreeDOS it's impossible install it witho=
ut killing the actual system ....<BR>> I'll have to use DOSBox<BR><BR>Wh=
at installed? VESA should be built into your BIOS. You can even<BR>alternat=
ely use UNIVBE for older machines. (confused by the confusion)<BR></DIV></B=
LOCKQUOTE></td></tr></table><br>=0A=0A=0A=0A <hr size=3D1><br><font fa=
ce=3D"Verdana" size=3D"-2">Encontra las mejores recetas con Yahoo! Cocina.=
=0A<br>=0Ahttp://ar.mujer.yahoo.com/cocina/</font>
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