Developing applications using DOS
Sure to be the dog-eared reference for anyone writing software under DOS, this advanced guide to assembly and C program development using DOS provides the latest information to help programmers comply with IBM's Common User Access, and provides in-depth knowledge of DOS internal application of programming interface and operation.
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allocated memory application arena header ASCIIZ string assuie AX Error code block device boot sector bytes cache code if CF code page color attribute command COMMAND.COM CONFIG.SYS DB DB DB device driver diskette display screen drive letter DS:DX entry execute extended memory Figure file handle filename flag function call graphics hardware IBMBIO IBMDOS Iipleieited Input AX INT 10H INT 21H INT 21H function interface interrupt handler IOCTL keyboard keystroke loaded Logical Video Buffer master boot record memory segment mouse offset open file overlay parameters partition Physical Video Buffer POP DS printer program segment program segment prefix request Reserved ROM BIOS routine scan code specified stack subdirectory text character tion update VDISK video mode window text write