spTBMask
#include <Slots.h>
typedef struct SpBlock { Size Offset Description long spResult; 4 0 FUNCTION result
Ptr spsPointer; 4 4 Structure pointer long spSize; 4 8 Size of structure
long spOffsetData; 4 12 Offset/data field used by sOffsetData
Ptr spsExecPBlk; 4 20 Pointer to SEBlock structure long spParamData; 4 24 Flags
long spReserved; 4 32 Reserved for future expansion
short spRefNum; 2 38 Slot Resource Table RefNum
short spCategory; 2 40 sResource_Type: Category field
short spCType; 2 42 sResource_Type: cType field
short spDrvrSW; 2 44 sResource_Type: DrvrSW field
short spDrvrHW; 2 46 sResource_Type: DrvrHW field
char spTBMask; 1 48 Type bit mask
char spSlot; 1 49 Slot number
char spID; 1 50 ID of the sResource
char spExtDev; 1 51 ID of external device
char spHwDev; 1 52 ID of hardware device
char spByteLanes; 1 53 ByteLanes from card ROM format block
typedef SpBlock *SpBlockPtr;
Field descriptions
spResult A general-purpose field used to contain the results returned by
several different routines.
spsPointer A pointer to a data structure. This field can point to an
sResource data structure, a data block, or the declaration ROM of
a NuBus card, depending on the routine being executed.
spSize The size of a data block.
spOffsetData The contents of the offset/data portion of a field in an sResource
data structure. This parameter is returned by the SOffsetData function.
spIOFileName Reserved for use by Apple
spsExecPBlk A pointer to an SEBlock data structure. This field is used only by the SExec function.
spParamData A long word that indicates whether an sResource data structure
is enabled or disabled (if 0, the sResource data structure is
enabled; if 1, it is disabled) or that sets the values of one or
more of the following flags:
Bit Flag Meaning
0 fall If 1, include disabled sResource data structures
in the search; if 0, ignore disabled sResource data structures.
1 foneslot If 1, restrict search to the slot specified in the
spSlot field of the parameter block; if 0, search the specified
slot plus all slots with higher numbers than the specified slot.
2 fnext If 1, search for the sResource data structure
that follows the one specified by the spSlot, spID, and spExtDev
fields of the parameter block; if 0, search for the sResource data
structure specified by these fields.
3-31Reserved Reserved for future use. These bits must be cleared to 0.
spReserved Reserved for future use.
spRefNum A device- driver reference number, it is assigned by the
spCategory Same as the Category field of the sRsrcType entry in the
sResource data structure you specify.
spCType Same as the cType field of the sRsrcType entry in the sResource
data structure you specify.
spDrvrSW Same as the DrvrSW field of the sRsrcType entry in the
sResource data structure you specify.
spDrvrHW Same as the DrvrHW field of the sRsrcType entry in the
sResource data structure you specify.
spTBMask A byte that allows you to specify which fields of the sRsrcType
entry in the sResource data structure should not be used by the
to mask a field.
Bit Field masked
0 DrvrHW
1 DrvrSW
2 cType
3 Category
spSlot The number of the slot containing the NuBus card you wish to
address.
spID The sResource identification number from the sResource
directory.
spExtDev An external-device identification number. If a NuBus card
contains more than one device, the card can use this number to
distinguish between the devices.
spHwDev The hardware-device identification number from the
sRsrc_HWDevId field of the sResource data structure.
spByteLanes The NuBus byte lanes the Slot Manager is to use when communicating with the NuBus card's declaration ROM. You can
read the byte-lane setting for a NuBus card from the card's
format block.
The SReadFHeader function returns a card's format block.
spKey Reserved for use by Apple.