    /*============================================================================
      NuSYSTEM sample program SNAKE TAIL HACK

      graphic.c

      Copyright (C) 1997, NINTENDO Co,Ltd.
      ============================================================================*/

    #include <nusys.h>

    #include "graphic.h"
    #include "para.h"

    Gfx          gfx_glist[GFX_GTASK_NUM][GFX_GLIST_LEN];
    Dynamic      gfx_dynamic[GFX_GTASK_NUM];
    Gfx*         glistp;
    u32          gfx_gtask_no = 0;

    /*----------------------------------------------------------------------------
      gfxRCPIinit

      The initialization of RCP
      ----------------------------------------------------------------------------*/
    void
    gfxRCPInit(void)
    {

        /* Setting the RSP segment register */
        gSPSegment(glistp++, 0, 0x0); /* For the CPU virtual address */

        /* Setting RSP */
        gSPDisplayList(glistp++, OS_K0_TO_PHYSICAL(setup_rspstate));

        /* Setting RDP */
        gSPDisplayList(glistp++, OS_K0_TO_PHYSICAL(setup_rdpstate));
    }

    /*----------------------------------------------------------------------------
      gfxClearCfb

      Clear the frame/Z-buffer
      ----------------------------------------------------------------------------*/
    void
    gfxClearCfb(void)
    {
        /* Clear the Z-buffer */
        gDPSetDepthImage(glistp++, OS_K0_TO_PHYSICAL(nuGfxZBuffer));
        gDPPipeSync(glistp++);
        gDPSetCycleType(glistp++, G_CYC_FILL);
        gDPSetColorImage(glistp++, G_IM_FMT_RGBA, G_IM_SIZ_16b,SCREEN_WD,
    		     OS_K0_TO_PHYSICAL(nuGfxZBuffer));
        gDPSetFillColor(glistp++,(GPACK_ZDZ(G_MAXFBZ,0) << 16 |
    			      GPACK_ZDZ(G_MAXFBZ,0)));
        gDPFillRectangle(glistp++, 0, 0, SCREEN_WD-1, SCREEN_HT-1);
        gDPPipeSync(glistp++);

        /* Clear the frame buffer */
        gDPSetColorImage(glistp++, G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_WD,
    		     osVirtualToPhysical(nuGfxCfb_ptr));
        gDPSetFillColor(glistp++, (GPACK_RGBA5551(0, 0, 0, 1) << 16 |
    			       GPACK_RGBA5551(0, 0, 0, 1)));
        gDPFillRectangle(glistp++, 0, 0, SCREEN_WD-1, SCREEN_HT-1);
        gDPPipeSync(glistp++);
    }