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ffThe following is quoted from Master Rushi on 2003-5-21 20:33:26:In the quoted text above, which one is the high memory area in “UMB (upper memory)” and “HIGH load part of DOS into the high memory area (HMB)”—is it HMB or UMB???
Let me explain one thing here. I wrote this explanation according to the general frequency of use of the commands. In a sense, I’m explaining first the ones I’m more familiar with and use more often.. I didn’t arrange them in strict academic alphabetical order. Please forgive me... Now let’s continue.
7, Setting time and date formats
Here I’ll talk about a command we Chinese don’t often use: COUNTRY. This is a command for setting time and date formats. We all know that because of the physical nature of the earth, people of different countries differ in race, customs, and time, so the currency systems of each country are also different. DOS defaults to using USA settings.. COUNTRY can change the default time, date, and currency settings.. The format used is:
COUNTRY=(country code as specified, such as 001-972) There isn’t one for China. So I don’t remember the exact codes very clearly. I basically never use this command, I only remember that England seems to be 044. Maybe wengier would know it clearly.
8, Low memory management
This is a very interesting command. The dos command in DOS. The first dos refers to the DOS system. The second dos manages and frees low memory for applications. This dos establishes and maintains low memory, and establishes the connection between low memory and upper memory. It can load part of the DOS system itself into UMB (upper memory).
Its general format is:
DOS=HIGH\LOW\AUTO
HIGH load part of DOS into the high memory area (HMB)
LOW restrict DOS to the low memory area
AUTO automatically choose where to place DOS.
UMB maintain the connection between low memory and reserved memory.. allowing DOS to use LOADHIGH and DEVICEHIGH and other commands to load devices or programs into upper memory.
NOUMB forbid DOS from using upper memory. Restrict the connection between low memory and upper memory.
In this command, parameters that do not conflict with each other can generally be used together. When using them together, please separate them with “,”. When using the HIGH and UMB parameters, note that at minimum HIMEM.SYS should already be loaded. This command can appear anywhere in the CONFIG file..