#: 6546 S12/OS9/68000 (OSK)
    06-Sep-90  03:29:06
Sb: #6531-##pt68k & herc graphics
Fm: SCOTT HOWELL 70270,641
To: Jack Crenshaw 72325,1327 (X)

Here is a program I wrote using the using the info Ed gave me abount setting up
the Herc card. When I run the program it puts the card into Herc graphics mode
but in the process it turns the snowy and wavy. This I suppose is the
'graphics' mode but only half way I guess. #include  #define  
VID_CARD   0xD70001 #define   HGC_CONT   0xFA0771 #define   HGC_CONF   0xFA077F
#define   HGC_STAT   0xFA0775 * These defines are set to configure the Herc
graphics card.
        The formula to convert IBM addresses (video) to PT68K
        addresses is (IBMVid * 2) + C00001.

   For non-video conversions: (IBM * 2) + FA0001.    */

char *video = VID_CARD; unsigned char *v_controll = HGC_CONT; unsigned char
*v_config = HGC_CONF; unsigned char *v_stat = HGC_STAT; char c; int i,n;

main() { video = (char *) VID_CARD; v_controll = (unsigned char *) HGC_CONT;
v_config = (unsigned char *) HGC_CONF;

*v_controll =0x2b; *v_config = 0x1;

printf("%x\n",*v_controll); printf("%x\n",*v_config);

video = (char *) VID_CARD; for (i=0;i<2000;i++)
        {
                *video++ =0xff; } }

There is 1 Reply.