"32-Bit Boot Flags Bitfield" (OS/PBC)

View Options: (help)

Focus:	Maintenance / Operation
Structures:	Abstract / Concrete

Ancestry:

0x000	pkt	LBTRESET
0x00C	bf	CFLAGS32 bootFlags

Definition:

Alignment:	4-byte boundary
APID:	1600/0x640:1
Attribute(s):
C type:	unsigned int
Length:	32 bits (4 bytes)
Offset:	0x00C

Description:

Bitfield containing the full 32 bits of the boot flags parameter.

Layout: (hide detail; help)

Start

Stop

Size

Item Type and Name

CFLAGS32 (bf)
|  CFLAGSHI hi (0-15)
|  CFLAGSLO lo (16-31)

typedef struct _PBC_CFLAGS32_Bfl {

    #if ENDIANNESS_IS_BIG

    /* Upper 16 Bits of Boot Flags */
    unsigned int         hi:16;

    /* Lower 16 Bits of Boot Flags */
    unsigned int         lo:16;

    #elif ENDIANNESS_IS_LITTLE

    /* Lower 16 Bits of Boot Flags */
    unsigned int         lo:16;

    /* Upper 16 Bits of Boot Flags */
    unsigned int         hi:16;

    #else

    #error _FILE_ ENDIANNESS NOT DEFINED

    #endif

} __attribute__((packed)) PBC_CFLAGS32_Bfl;

typedef union _PBC_CFLAGS32 {

    /* underlying unsigned int */
    unsigned int                    ui;

    /* struct mapped bitfield */
    struct _PBC_CFLAGS32_Bfl        bf;

} PBC_CFLAGS32;