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dos 1.0 其中包含quick basic源代码、内存管理himem emm386 发展历史

	Installable Screen Drivers:

 ibmtext.csd	is a basic installable screen driver supporting
		7 screen modes under DOS3.

 fx_csd3.obj	is the fixed version of ibmtext.csd

 fx_twin.obj	is a fixed version of ibmtext.csd with the video
		save routines.

 vio.csd	is the basic OS/2 version.
 fx_csd5.obj	is the basic fixed OS/2 version.

	Others:

 amstrad.csd	amstrad support
 biosafe.csd	rudimentary "bios-safe" support
 cgasnow.csd	
 genius.csd
 hercules.csd
 ibmfont.csd	graphics-text support
 olivetti.csd
 t3100.csd
 tandy.csd
 vectra.csd


	Include Files:

 genmodes.asm	contains the definitions for the 7 basic screen modes
		-included in fx_twin, ibmtext, and fx_csd3
 geninit.asm	contains a general FInitCsd routine
		-used in fx_twin, ibmtext, and fx_csd3

 saveega.inc	ega save information
 saveega.asm	-included in fx_twin

 cpfont.asm	contains the routine ChrisPFont
		-included in ibmfont, hercules, t3100, tandy, vectra
			     olivetti, and genius
		-define the symbols CPF814 and CPF816 for 8x14 and 8x16
		 font support respectively


	Please avoid duplicating code when adding new drivers.