ICP RS Series, User Manual, Page: 74 / 193

74
ƒ
GDTX000.EXE must be loaded from the first line following the HIMEM.SYS device
command in the CONFIG.SYS file. If HIMEM.SYS is not loaded, it must be loaded from
the very first line of the CONFIG.SYS file.
ƒ
GDTX000.EXE can be loaded in the UMA.
ƒ
GDTX000.EXE is needed for an optimal use of Windows 3.x.
ƒ
The ICP Controller unfolds its full capacity under MS-DOS or Windows 3.x only when
GDTX000.EXE is installed.
ƒ
In order to load ICPCON under MS-DOS from disk, you need GDTX000.EXE.
ƒ
In the CONFIG.SYS file, GDTX000.EXE must be loaded before GDTASPI.EXE.
Below is an example of a CONFIG.SYS file which is essential for the MS-DOS configuration
device=c:\windows\himem.sys
device=gdtx000.exe
files=30
buffers=30
stacks=9,256
dos=high,umb
install=\dos\keyb.com GR,,\dos\keyboard.sys
device=mouse.sys
device=\dos\setver.exe
device=\gdt\gdtaspi.exe
device=\aspi\aswcdnec.sys /D:CDROM
lastdrive=h
In this example, besides the GDTX000 driver, the GDTXDOS.EXE driver, the GDT ASPI Man-
ager and an ASPI Module for an NEC CDROM drive are loaded.
D.4 Expanded Memory Managers
When using Expanded Memory Managers, a certain address area has to be excluded from
being controlled by these programs. This area is the ICP Dual Ported Memory address
space. If the ICP Controller is not run with the GDTX000.EXE driver (that is, the driver has
not been loaded from the CONFIG.SYS file), the address space of the ICP BIOS must also
be excluded. If the GDTX000.EXE driver is loaded from the CONFIG.SYS file in a line
before
the Expanded Memory Manager (EMM), it is not necessary to exclude the address space of
the ICP BIOS. Unlike ISA or EISA computer systems where the controller’s BIOS address
space is set manually (through jumpers or the configuration file), PCI computers automati-
cally map the address space of a peripheral PCI device (e.g., the ICP Controller with its
BIOS and Dual Ported Memory) to a suitable location during a warm or cold boot. If the
system configuration does not change (no new PCI expansion cards are being added etc.),
the PCI System BIOS will always map these two spaces to the same addresses. To help you
find out where these addresses have been mapped to, the ICP BIOS indicates the physical
address locations of the ICP BIOS and the ICP DPMEM during the cold boot (also see chap-
ter B in this manual):
BIOS located at 0x000E0000 - 0x000E1FFF
In this example, the ICP BIOS occupies E000:0000 to E000:1FFF (E000 is the segment ad-
dress).
DPMEM at 0x000D0000 - 0x000D3FFF