smapi_bios.S

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    1 #include <machine/asm.h>
    2 __FBSDID("$FreeBSD: releng/9.0/sys/i386/bios/smapi_bios.S 148285 2005-07-22 15:01:07Z ru $");
    3 
    4 /*
    5  * This is cribbed from the Linux thinkpad-4.1 driver by
    6  * Thomas Hood.
    7  */
    8 
    9         .align
   10 smapi32_entry:                                  /* far pointer to SMAPI entry */
   11         .globl  smapi32_offset
   12 smapi32_offset:         .long   0x00000000      /* set by caller */
   13 smapi32_segment:        .word   0x0000          /* %cs stored here */
   14 
   15         .text
   16 /*
   17  * smapi32(input_param, output_param)
   18  *      struct smapi_bios_parameter *input_parm;
   19  *      struct smapi_bios_parameter *output_parm;
   20  *
   21  *      stack frame:
   22  *              0x00 : saved ebp
   23  *              0x04 : return EIP
   24  *              0x08 : input_parm
   25  *              0x0c : output_parm
   26  */
   27 ENTRY(smapi32)
   28         pushl   %ebp                    /* Save frame */
   29         movl    %esp,%ebp
   30 
   31         pushl   %ds
   32         pushl   0x0c(%ebp)              /* Output Param */
   33         pushl   %ds
   34         pushl   0x08(%ebp)              /* Input Param */
   35 
   36         movl    $0,%eax                 /* Clear EAX (return 0) */
   37         movw    %cs,smapi32_segment     /* Save CS */
   38         lcall   *(smapi32_offset)
   39 
   40         leave
   41         ret

Cache object: 6fa2a526f61b58c6728763bce4d4350c

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FreeBSD/Linux Kernel Cross Reference sys/i386/bios/smapi_bios.S

FreeBSD/Linux Kernel Cross Reference
sys/i386/bios/smapi_bios.S