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Fixed the ET4000AX, OS/2 now boots with it again.

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This commit is contained in:
OBattler
2018-02-25 23:17:25 +01:00
parent 8c5976e929
commit 7b5420571c
1 changed files with 16 additions and 3 deletions
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19
src/video/vid_et4000.c
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@@ -8,13 +8,13 @@
* *
* Emulation of the Tseng Labs ET4000. * Emulation of the Tseng Labs ET4000.
* *
* Version: @(#)vid_et4000.c 1.0.3 2017/11/04 * Version: @(#)vid_et4000.c 1.0.4 2018/02/25
* *
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/> * Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com> * Miran Grca, <mgrca8@gmail.com>
* *
* Copyright 2008-2017 Sarah Walker. * Copyright 2008-2018 Sarah Walker.
* Copyright 2016,2017 Miran Grca. * Copyright 2016-2018 Miran Grca.
*/ */
#include <stdio.h> #include <stdio.h>
#include <stdint.h> #include <stdint.h>
@@ -45,6 +45,18 @@ typedef struct et4000_t
uint8_t banking; uint8_t banking;
} et4000_t; } et4000_t;
static uint8_t crtc_mask[0x40] =
{
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xff, 0xff, 0xff, 0x0f, 0xff, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
void et4000_out(uint16_t addr, uint8_t val, void *p) void et4000_out(uint16_t addr, uint8_t val, void *p)
{ {
et4000_t *et4000 = (et4000_t *)p; et4000_t *et4000 = (et4000_t *)p;
@@ -75,6 +87,7 @@ void et4000_out(uint16_t addr, uint8_t val, void *p)
if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80)) if ((svga->crtcreg == 7) && (svga->crtc[0x11] & 0x80))
val = (svga->crtc[7] & ~0x10) | (val & 0x10); val = (svga->crtc[7] & ~0x10) | (val & 0x10);
old = svga->crtc[svga->crtcreg]; old = svga->crtc[svga->crtcreg];
val &= crtc_mask[svga->crtcreg];
svga->crtc[svga->crtcreg] = val; svga->crtc[svga->crtcreg] = val;
if (old != val) if (old != val)
{ {