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Removed a vblank/hblank hack in Filetto and emulated it properly.

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This commit is contained in:
Angelo Salese 2008-11-14 00:46:34 +00:00
parent a65d0450f6
commit 1463838fdc
1 changed files with 16 additions and 25 deletions
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41
src/mame/drivers/filetto.c
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@ -64,7 +64,6 @@ AH
******************************************************************************************/
#include "driver.h"
#include "deprecat.h"
#include "video/generic.h"
#include "machine/pit8253.h"
#include "machine/8255ppi.h"
@ -111,12 +110,24 @@ static READ8_HANDLER( vga_hvretrace_r )
---- x--- Vertical Retrace
---- ---x Horizontal Retrace
*/
//v_blank^=8;
//h_blank^=1;
return (hv_blank);
static UINT8 res;
static int h,w;
res = 0;
h = video_screen_get_height(machine->primary_screen);
w = video_screen_get_width(machine->primary_screen);
// popmessage("%d %d",h,w);
if (video_screen_get_hpos(machine->primary_screen) > h)
res|= 1;
if (video_screen_get_vpos(machine->primary_screen) > w)
res|= 8;
return res;
}
//was using magenta/cyan/white instead of red/green/brown
//Note: this should be converted to red/green/brown instead of magenta/cyan/white
/*Basic Graphic mode */
static void cga_graphic_bitmap(running_machine *machine,bitmap_t *bitmap,const rectangle *cliprect,UINT16 size,UINT32 map_offs)
{
@ -806,25 +817,6 @@ static PALETTE_INIT(filetto)
palette_set_color(machine, 0xff,MAKE_RGB(0xff,0xff,0xff));
}
#define HBLANK_1 if(!(hv_blank & 1)) hv_blank^= 1;
#define HBLANK_0 if(hv_blank & 1) hv_blank^= 1;
#define VBLANK_1 if(!(hv_blank & 8)) hv_blank^= 8;
#define VBLANK_0 if(hv_blank & 8) hv_blank^= 8;
static INTERRUPT_GEN( filetto_vblank )
{
/*TODO: Timings are guessed*/
/*H-Blank*/
if((cpu_getiloops(device) % 8) == 0){ HBLANK_1; }
else { HBLANK_0; }
/*V-Blank*/
if(cpu_getiloops(device) >= 180) { VBLANK_1; }
else { VBLANK_0; }
}
static MACHINE_RESET( filetto )
{
bank = -1;
@ -842,7 +834,6 @@ static MACHINE_DRIVER_START( filetto )
MDRV_CPU_ADD("main", I8088, 8000000)
MDRV_CPU_PROGRAM_MAP(filetto_map,0)
MDRV_CPU_IO_MAP(filetto_io,0)
MDRV_CPU_VBLANK_INT_HACK(filetto_vblank,200)
MDRV_MACHINE_RESET( filetto )