Message-Id: <m0z0nkO-000S5OC@inti.gov.ar>
Comments: Authenticated sender is <salvador AT natacha DOT inti DOT gov DOT ar>
From: "Salvador Eduardo Tropea (SET)" <salvador AT inti DOT gov DOT ar>
Organization: INTI
To: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>, b52g AT usa DOT net, djgpp AT delorie DOT com,
        nate AT cartsys DOT com
Date: Mon, 27 Jul 1998 11:05:11 +0000
MIME-Version: 1.0
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7BIT
Subject: Re: EMM386 limiting memory to 32Mb
References: <35B7BB95 DOT 57E7B48C AT cartsys DOT com>
In-reply-to: <Pine.SUN.3.91.980726120655.26387J-100000@is>
Precedence: bulk

Hi All:

  Charles told me that:

>In valloc.c, there is a check for VCPI capacity.  If zero, it uses XMS
>memory.  In older EMM386s, NOEMS or NOVCPI would set the VCPI memory
>capacity zero as a workaround.

  So I tried with EMM386 from MSDOS 6.22 and EMM386 from W95 OSR1.0 and it
works ok. Currently I can use:

Windows 3.11 EMM386 (No WfW):
DEVICE=\WIN31\EMM386.EXE NOEMS D=64 I=E000-EFFF
[The included area is because EMM386 reserves it for Windows, I guess it must
be different in different machines]

DOS 6.22 EMM386:
DEVICE=\DOS6\EMM386.EXE NOEMS NOVCPI D=64 VERBOSE

Windows 95 OSR1.0 EMM386:
DEVICE=\WIN95\EMM386.EXE NOEMS NOVCPI D=64 VERBOSE

[Note: D=64 is to reserve memory for DMA]
All works similar under DOS 6.22, here are the mem results:
[You must guess what the spanish labels are ;-), I added a traslation]

1)
Tipo de memoria    Total  =  Usada  +  Libre
----------------  -------   -------   -------
Convencional         640K       53K      587K  <- Conventional
Superior             156K      136K       20K  <- High
Reservada            384K      384K        0K  <- Reserved
Extendida (XMS)   64.356K   12.556K   51.800K  <- Extended
----------------  -------   -------   -------
Memoria total     65.536K   13.129K   52.407K

Total menor 1 MB     796K      189K      607K

Programa ejecutable m s extenso        587K (600.912 bytes)  
Bloque memoria superior m s extenso     20K  (20.368 bytes)  
MS-DOS reside en el  rea de memoria alta.

2)
Tipo de memoria    Total  =  Usada  +  Libre
----------------  -------   -------   -------
Convencional         640K       53K      587K
Superior             151K      136K       15K
Reservada            384K      384K        0K
Extendida (XMS)   64.361K   12.557K   51.804K
----------------  -------   -------   -------
Memoria total     65.536K   13.130K   52.406K

Total menor 1 MB     791K      189K      602K

Programa ejecutable m s extenso        587K (601.040 bytes)  
Bloque memoria superior m s extenso     14K  (14.592 bytes)  
MS-DOS reside en el  rea de memoria alta.

3)
Tipo de memoria    Total  =  Usada  +  Libre
----------------  -------   -------   -------
Convencional         640K       54K      586K
Superior             151K      136K       14K
Reservada            384K      384K        0K
Extendida (XMS)   64.361K   12.557K   51.804K
----------------  -------   -------   -------
Memoria total     65.536K   13.132K   52.404K

Total menor 1 MB     791K      190K      600K

Programa ejecutable m s extenso        586K (599.920 bytes)  
Bloque memoria superior m s extenso     14K  (14.288 bytes)  
MS-DOS reside en el  rea de memoria alta.

In all the cases go32-v2 reports around 52Mb of free memory.

Eli: perhaps you can add it to the FAQ.

SET
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Salvador Eduardo Tropea (SET). (Electronics Engineer)
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