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More S3-related bug fixes.

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This commit is contained in:
OBattler
2018-09-20 18:03:07 +02:00
parent 56517cff03
commit 55afa5e2ac
2 changed files with 53 additions and 62 deletions
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30
src/video/vid_s3_virge.c
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@@ -8,7 +8,7 @@
*
* S3 ViRGE emulation.
*
* Version: @(#)vid_s3_virge.c 1.0.13 2018/09/19
* Version: @(#)vid_s3_virge.c 1.0.14 2018/09/20
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
@@ -764,21 +764,23 @@ static void s3_virge_updatemapping(virge_t *virge)
}
s3_virge_log("Memory mapped IO %02X\n", svga->crtc[0x53] & 0x18);
if (svga->crtc[0x53] & 0x10) /*Old MMIO*/
{
if (svga->crtc[0x53] & 0x20)
mem_mapping_set_addr(&virge->mmio_mapping, 0xb8000, 0x8000);
else
mem_mapping_set_addr(&virge->mmio_mapping, 0xa0000, 0x10000);
}
else
mem_mapping_disable(&virge->mmio_mapping);
if (svga->crtc[0x53] & 0x08) /*New MMIO*/
mem_mapping_set_addr(&virge->new_mmio_mapping, virge->linear_base + 0x1000000, 0x10000);
else
mem_mapping_disable(&virge->new_mmio_mapping);
/* Memory mapped I/O. */
/* Old MMIO. */
if (svga->crtc[0x53] & 0x10) {
if (svga->crtc[0x53] & 0x20)
mem_mapping_set_addr(&virge->mmio_mapping, 0xb8000, 0x8000);
else
mem_mapping_set_addr(&virge->mmio_mapping, 0xa0000, 0x10000);
} else
mem_mapping_disable(&virge->mmio_mapping);
/* New MMIO. */
if ((svga->crtc[0x53] & 0x18) == 0x18) /*New MMIO*/
mem_mapping_set_addr(&virge->new_mmio_mapping, virge->linear_base + 0x1000000, 0x10000);
else
mem_mapping_disable(&virge->new_mmio_mapping);
}
static void s3_virge_vblank_start(svga_t *svga)