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kbdbuf.bat
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DOS Batch File
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1995-03-28
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2KB
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52 lines
@echo OFF
REM *******************************************************************
REM *** KbdBuf.bat - CEnviD sample file which will, on most systems, ***
REM *** ver.1 increase the keyboard typeahead buffer size. ***
REM *******************************************************************
CEnviD %0.bat %1 %2
GOTO CENVI_EXIT
#define MIN_TYPEAHEAD 1
#define MAX_TYPEAHEAD 127
main(argc,argv)
{
if ( argc != 2 || !strcmpi(argv[1],"/?") )
Instructions()
else {
// check input value for valid range
typeahead = atoi(argv[1]);
if ( typeahead < MIN_TYPEAHEAD || MAX_TYPEAHEAD < typeahead ) {
printf("\aInvalid input value; enter /? for instructions\n");
} else {
SetTypeahead(typeahead);
}
}
}
SetTypeahead(BufSize) // set size of the typeahead buffer
{
#define NEXT_CHAR_PTR 0x41A
#define LAST_CHAR_PTR 0x41C
#define KYBD_BUF_START_PTR 0x480
#define KYBD_BUF_END_PTR 0x482
BufferLocation = ( BufSize <= 15 ) ? 0x1E : 0x200 ;
poke(NEXT_CHAR_PTR,BufferLocation,UWORD16);
poke(LAST_CHAR_PTR,BufferLocation,UWORD16);
poke(KYBD_BUF_START_PTR,BufferLocation,UWORD16);
poke(KYBD_BUF_END_PTR,BufferLocation+(2*(BufSize+1)),UWORD16);
}
Instructions()
{
printf("\n")
printf("KbdBuf - Set keyboard typeahead buffer size\n")
printf("\n")
printf("USAGE: KbdBuf <size>\n")
printf("\n")
printf("Where: size Size of the typeahead buffer; min = %d max = %d\n",MIN_TYPEAHEAD,MAX_TYPEAHEAD);
printf("\n")
}
:CENVI_EXIT