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Int 1A Fn 91 - PCmcia Socket Services - Read One [X]
AH = 91h
AL = adapter number
BL = socket number (01h to maximum supported by adapter)
BH = attributes (see below)
DX:SI = card address
Return: CF clear if successful
AH destroyed
CL/CX = value read
CF set on error
AH = error code (01h,07h,09h,0Bh,14h) (see AH=80h"PCMCIA")
CX may be destroyed
Note: this function is only valid for I/O-mapped sockets
See Also: AH=92h,AH=93h,INT 21/AX=440Dh"IOCTL"
Bitfields for attributes:
bit 0 attribute memory instead of common memory
bit 1 word rather than byte
bit 2 even bytes only
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