MS-DOS advanced programming
Shows how to achieve optimal software performance under MS-DOS. This is a collection of practical techniques--with source code listings--designed to enhance software performance by taking fullest advantage of the rich set of resources intrinsic to MS-DOS machines.
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Calling a C Function from an Assembler Program
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allocated ANSI.SYS application ASCII Assembler routines assembly language attribute ax mov BI0S buffer byte ptr Chapter command line compatibility compiler contains Ctrl-Break cursor position data segment DDID debugging device driver DIDD disk endp Entry environment erestore error code example expanded memory Figure file control block flag function calls graphics hardware interrupt hotkey input installed int 21h interface interrupt 16h interrupt handler interrupt routine interrupt vector keyboard machine Macro memory-resident Microsoft mov ax MS-DOS offset operating system output parameters performance pointer printf proc procedure program segment prefix push ax real mode Restore Return to top Save segment address specific stack standard string technical reference terminate Test tion top of loop video memory video mode void window write