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Inside Macintosh: Devices /

Chapter 2 - Slot Manager / Slot Manager Reference

Low-Level Routines /

SFindBigDevBase

This function is obsolete.

FUNCTION SFindBigDevBase (spBlkPtr: SpBlockPtr): OSErr;

spBlkPtr

A pointer to a Slot Manager parameter block.

-->	spSlot	SignedByte	The slot number.
-->	spId	SignedByte	The sResource ID.
<--	spResult	LongInt	The device base address.

DESCRIPTION

The SFindBigDevBase function has been superseded by the SFindDevBase function. Currently, both functions execute the same code and return the same result. However, for future compatibility you should use only the SFindDevBase function described on page 2-66.

ASSEMBLY-LANGUAGE INFORMATION

The trap macro and routine selector for the SFindBigDevBase function are

Trap macro	Selector
_SlotManager	$001C

On entry, register D0 contains the routine selector and register A0 contains the address of the Slot Manager parameter block. When _SlotManager returns, register D0 contains the result code.

Registers on entry
A0	Address of the parameter block
D0	$001C

Registers on exit
D0	Result code

RESULT CODES

noErr	0	No error
smEmptySlot	-300	No card in this slot

SEE ALSO

For information about the supported function for finding a device base address, see the description of the SFindDevBase function on page 2-66.