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Readded the CRTC register masks for the Trident TVGA8900D, those were also from PCem and should not have been removed.

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OBattler
2018-02-26 13:38:57 +01:00
parent 7b5420571c
commit 99f53633ef
1 changed files with 16 additions and 3 deletions
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19
src/video/vid_tvga.c
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@@ -8,13 +8,13 @@
*
* Trident TVGA (8900D) emulation.
*
* Version: @(#)vid_tvga.c 1.0.3 2017/11/04
* Version: @(#)vid_tvga.c 1.0.4 2018/02/26
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
*
* Copyright 2008-2017 Sarah Walker.
* Copyright 2016,2017 Miran Grca.
* Copyright 2008-2018 Sarah Walker.
* Copyright 2016-2018 Miran Grca.
*/
#include <stdio.h>
#include <stdint.h>
@@ -52,6 +52,18 @@ typedef struct tvga_t
uint32_t vram_mask;
} tvga_t;
static uint8_t crtc_mask[0x40] =
{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0x7f, 0xff, 0x3f, 0x7f, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0x7f, 0xff, 0xff, 0xef,
0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
0x7f, 0x00, 0x00, 0x2f, 0x00, 0x00, 0x00, 0x03,
0x00, 0x13, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static void tvga_recalcbanking(tvga_t *tvga);
void tvga_out(uint16_t addr, uint8_t val, void *p)
{
@@ -123,6 +135,7 @@ void tvga_out(uint16_t addr, uint8_t val, void *p)
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg];
val &= crtc_mask[svga->crtcreg];
svga->crtc[svga->crtcreg] = val;
if (old != val)
{