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Removed a last redundant element from NES PPU struct

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This commit is contained in:
Fabio Priuli 2009-08-02 10:40:58 +00:00
parent 567ca7d7dd
commit 7e22c033cf
1 changed files with 0 additions and 14 deletions
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14
src/mame/video/ppu2c0x.c
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@ -103,7 +103,6 @@ typedef struct
int tile_page; /* current tile page */
int sprite_page; /* current sprite page */
int back_color; /* background color */
int nes_vram[8]; /* keep track of 8 .5k vram pages to speed things up */
UINT8 palette_ram[0x20]; /* shouldn't be in main memory! */
int scan_scale; /* scan scale */
int scanlines_per_frame; /* number of scanlines per frame */
@ -370,7 +369,6 @@ static void draw_background( const device_config *device, UINT8 *line_priority )
const int *ppu_regs = &this_ppu->regs[0];
const int scanline = this_ppu->scanline;
const int refresh_data = this_ppu->refresh_data;
const int *nes_vram = &this_ppu->nes_vram[0];
const int tile_page = this_ppu->tile_page;
int start_x = (this_ppu->x_fine ^ 0x07) - 7;
@ -423,12 +421,10 @@ static void draw_background( const device_config *device, UINT8 *line_priority )
int pos;
int index1;
int page, page2, address;
int index2;
UINT16 pen;
index1 = tile_index + x;
// this is attribute table stuff! (actually read 2 in PPUspeak)!
/* Figure out which byte in the color table to use */
pos = ((index1 & 0x380) >> 4) | ((index1 & 0x1f) >> 2);
@ -442,7 +438,6 @@ static void draw_background( const device_config *device, UINT8 *line_priority )
// page2 is the output of the nametable read (this section is the FIRST read per tile!)
address = index1 & 0x3ff;
page2 = memory_read_byte(device->space[0], index1);
index2 = nes_vram[(page2 >> 6) | tile_page] + (page2 & 0x3f);
// 27/12/2002
if (ppu_latch)
@ -466,8 +461,6 @@ static void draw_background( const device_config *device, UINT8 *line_priority )
plane2 = memory_read_byte(device->space[0], (address + 8) & 0x1fff);
// plane2 = plane2 << 1;
// sd = gfx_element_get_data(device->machine->gfx[gfx_bank], index2 % total_elements) + start;
/* render the pixel */
for (i = 0; i < 8; i++)
{
@ -600,9 +593,6 @@ static void draw_sprites( const device_config *device, UINT8 *line_priority )
else
page = (tile >> 6) | sprite_page;
// index1 = this_ppu->nes_vram[page] + (tile & 0x3f);
if (ppu_latch)
(*ppu_latch)(device, (sprite_page << 10) | ((tile & 0xff) << 4));
@ -1004,10 +994,6 @@ static DEVICE_RESET( ppu2c0x )
this_ppu->colortable[i] = default_colortable[i] + color_base;
}
}
/* set the vram bank-switch values to the default */
for (i = 0; i < 8; i++)
this_ppu->nes_vram[i] = i * 64;
}
/*************************************