sys/i386/isa/debug.h

/*
 *      from: debug.h, part of Bruce Evans interrupt code
 *      $Id: debug.h,v 1.2 1993/10/16 13:45:48 rgrimes Exp $
 */

#define SHOW_A_LOT_NOT

#define BDBTRAP(name) \
        ss ; \
        cmpb    $0,_bdb_exists ; \
        je      1f ; \
        testb   $SEL_RPL_MASK,4(%esp) ; \
        jne     1f ; \
        ss ; \
bdb_/**/name/**/_ljmp: ; \
        ljmp    $0,$0 ; \
1:

#if 1
#define COUNT_EVENT(group, event)       incl    (group) + (event) * 4
#else
#define COUNT_EVENT(group, event)
#endif

#ifdef SHOW_A_LOT

#define GREEN           0x27    /* 0x27 for true green, 0x07 for mono */
#define CLI_STI_X       63
#define CPL_X           46
#define IMEN_X          64
#define IPENDING_X      29
#define RED             0x47    /* 0x47 for true red, 0x70 for mono */

#define SHOW_BIT(bit) ; \
        movl    %ecx,%eax ; \
        shr     $bit,%eax ; \
        andl    $1,%eax ; \
        movb    bit_colors(%eax),%al ; \
        movb    %al,bit * 2 + 1(%ebx)

#define SHOW_BITS(var, screen_offset) ; \
        pushl   %ebx ; \
        pushl   %ecx ; \
        movl    _Crtat,%ebx ; \
        addl    $screen_offset * 2,%ebx ; \
        movl    _/**/var,%ecx ; \
        call    show_bits ; \
        popl    %ecx ; \
        popl    %ebx

#define SHOW_CLI \
        COUNT_EVENT(_intrcnt_show, 0) ; \
        pushl   %eax ; \
        movl    _Crtat,%eax ; \
        movb    $RED,CLI_STI_X * 2 + 1(%eax) ; \
        popl    %eax

#define SHOW_CPL \
        COUNT_EVENT(_intrcnt_show, 1) ; \
        SHOW_BITS(cpl, CPL_X) ; \

#define SHOW_IMEN \
        COUNT_EVENT(_intrcnt_show, 2) ; \
        SHOW_BITS(imen, IMEN_X)

#define SHOW_IPENDING \
        COUNT_EVENT(_intrcnt_show, 3) ; \
        SHOW_BITS(ipending, IPENDING_X)

#define SHOW_STI \
        COUNT_EVENT(_intrcnt_show, 4) ; \
        pushl   %eax ; \
        movl    _Crtat,%eax ; \
        movb    $GREEN,CLI_STI_X * 2 + 1(%eax) ; \
        popl    %eax

#else /* not SHOW_A_LOT */

#define SHOW_CLI        COUNT_EVENT(_intrcnt_show, 0)
#define SHOW_CPL        COUNT_EVENT(_intrcnt_show, 1)
#define SHOW_IMEN       COUNT_EVENT(_intrcnt_show, 2)
#define SHOW_IPENDING   COUNT_EVENT(_intrcnt_show, 3)
#define SHOW_STI        COUNT_EVENT(_intrcnt_show, 4)

#endif /* SHOW_A_LOT */