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Merge pull request #2943 from 86Box/tc1995

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S3: Don't allow 16-bit I/O pixtrans blitting on the first 8-bit I/O write port of pixtrans (non-MMIO).
This commit is contained in:
Miran Grča
2022-12-04 22:01:31 +01:00
committed by GitHub
parent cb4f5d2655 fee8970aab
commit 94039ff775
1 changed files with 0 additions and 12 deletions
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12
src/video/vid_s3.c
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@@ -1239,18 +1239,6 @@ s3_accel_out_fifo(s3_t *s3, uint16_t port, uint8_t val)
s3_accel_start(1, 1, 0xffffffff, s3->accel.pix_trans[0], s3);
}
break;
case 0x200:
if (((s3->accel.multifunc[0xa] & 0xc0) == 0x80) || (s3->accel.cmd & 2)) {
if (((s3->accel.frgd_mix & 0x60) != 0x40) || ((s3->accel.bkgd_mix & 0x60) != 0x40))
s3_accel_start(16, 1, s3->accel.pix_trans[0] | (s3->accel.pix_trans[0] << 8), 0, s3);
else
s3_accel_start(2, 1, 0xffffffff, s3->accel.pix_trans[0] | (s3->accel.pix_trans[0] << 8), s3);
} else {
if (s3->chip != S3_86C928PCI && s3->chip != S3_86C928) {
s3_accel_start(2, 1, 0xffffffff, s3->accel.pix_trans[0] | (s3->accel.pix_trans[0] << 8), s3);
}
}
break;
}
}
break;