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AX = 4321h BX = 0000h EAX = 87654321h (entire EAX value is required, not just AX)
Return:
EAX = 12345678h if installed
Program: Q387 (renamed to Q87 as of v3.7) is a math coprocessor emulator from Quickware
Note: This function is available only in virtual-86 mode in older versions; newer versions also provide it in MS Windows 16- and 32-bit protected mode
See Also: AX=4321h/BX=0001h - AX=4321h/BX=0002h - INT 67/AX=4321h
Category: Emulators - Int 21h - Q
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