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AH = function 00h to 5Fh chained to previous handler 60h to 6Ch reserved, return immediately 80h to FFh chained to previous handler 6Dh (v4.01+) insert tone in queue AL = ??? CX = frequency in Hertz DL = duration in clock ticksReturn:
AL = 00h if note stored = 01h if no room to store 6Eh clear ??? counter/flag 6Fh return counter/flag that AH=6Eh clears 70h ??? AL = ??? 71h ??? AL = ??? 72h ??? 73h insert byte at end of keyboard buffer AL = byte to insertReturn:
AL = 00h if byte inserted = 01h if no room to store 74h insert byte at front of keyboard buffer AL = byte to insertReturn:
AL = 00h if byte inserted = 01h if no room to store 75h ??? 76h get keyboard "stack" status AL = 'K' if kbd read will read physical keyboard 'S' if it will read EBL internal keyboard buffer AH = ??? 77h clear internal keyboard buffer 78h ??? AL = ??? 79h ??? 7Ah ??? AL = ??? 7Bh ??? AL = ??? 7Ch ??? AL = ??? 7Dh ??? AL = ??? 7Eh clear buffer for ??? 7Fh installation checkReturn:
CX = version in BCD DI = segment of ??? BX = segment of next program's PSP???
Program: Extended Batch Language is a batch-file enhancer by Seaware
Notes: The chaining does not check whether the interrupt had been hooked before, so if you try to chain when the previous vector was 0000h:0000h, you'll be in trouble. Functions 72h and 7Ah-7Dh appear to be interfaces to the optional floating-point and extended function packages
Index:
Installation check;EBL|installation check;Extended Batch Language
Category: Runtime Support - Int 64h - E
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