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Ensure that RAM and bitmaps are cleared when the ms32 driver is started to avoid 64-bit build crashes [David Haywood]

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---------- Forwarded message ----------
From: David Haywood <neohaze@nildram.co.uk>
Date: Thu, Jan 21, 2010 at 10:04 PM
Subject: ms32 ram clearing
To: Philip Bennett <p.j.bennett@gmail.com>


this ensures that ram and bitmaps are cleared when the ms32 driver is
started, some games were crashing out on 64-bit otherwise due to bogus
values.
This commit is contained in:
Phil Bennett 2010-01-25 14:42:18 +00:00
parent eace925516
commit b3a01131b7
1 changed files with 11 additions and 8 deletions
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19
src/mame/video/ms32.c
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@ -105,13 +105,13 @@ VIDEO_START( ms32 )
int width = video_screen_get_width(machine->primary_screen);
int height = video_screen_get_height(machine->primary_screen);
ms32_priram_8 = auto_alloc_array(machine, UINT8, 0x2000);
ms32_palram_16 = auto_alloc_array(machine, UINT16, 0x20000);
ms32_rozram_16 = auto_alloc_array(machine, UINT16, 0x10000);
ms32_lineram_16 = auto_alloc_array(machine, UINT16, 0x1000);
ms32_sprram_16 = auto_alloc_array(machine, UINT16, 0x20000);
ms32_bgram_16 = auto_alloc_array(machine, UINT16, 0x4000);
ms32_txram_16 = auto_alloc_array(machine, UINT16, 0x4000);
ms32_priram_8 = auto_alloc_array_clear(machine, UINT8, 0x2000);
ms32_palram_16 = auto_alloc_array_clear(machine, UINT16, 0x20000);
ms32_rozram_16 = auto_alloc_array_clear(machine, UINT16, 0x10000);
ms32_lineram_16 = auto_alloc_array_clear(machine, UINT16, 0x1000);
ms32_sprram_16 = auto_alloc_array_clear(machine, UINT16, 0x20000);
ms32_bgram_16 = auto_alloc_array_clear(machine, UINT16, 0x4000);
ms32_txram_16 = auto_alloc_array_clear(machine, UINT16, 0x4000);
ms32_tx_tilemap = tilemap_create(machine, get_ms32_tx_tile_info,tilemap_scan_rows,8, 8,64,64);
ms32_bg_tilemap = tilemap_create(machine, get_ms32_bg_tile_info,tilemap_scan_rows,16,16,64,64);
@ -124,6 +124,9 @@ VIDEO_START( ms32 )
temp_bitmap_sprites = auto_bitmap_alloc(machine, width, height, BITMAP_FORMAT_INDEXED16);
temp_bitmap_sprites_pri = auto_bitmap_alloc(machine, width, height, BITMAP_FORMAT_INDEXED16); // not actually being used for rendering, we embed pri info in the raw colour bitmap
bitmap_fill(temp_bitmap_tilemaps,0,0);
bitmap_fill(temp_bitmap_sprites,0,0);
bitmap_fill(temp_bitmap_sprites_pri,0,0);
tilemap_set_transparent_pen(ms32_tx_tilemap,0);
tilemap_set_transparent_pen(ms32_bg_tilemap,0);
@ -149,7 +152,7 @@ VIDEO_START( f1superb )
{
VIDEO_START_CALL( ms32 );
f1superb_extraram_16 = auto_alloc_array(machine, UINT16, 0x10000);
f1superb_extraram_16 = auto_alloc_array_clear(machine, UINT16, 0x10000);
ms32_extra_tilemap = tilemap_create(machine, get_ms32_extra_tile_info,tilemap_scan_rows,2048,1,1,0x400);
}