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The S3 cards now no longer do mixing or ROP's for PIX_TRANS reads.

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OBattler
2019-10-31 18:14:04 +01:00
parent 353329e394
commit 6f1c838496
1 changed files with 3 additions and 2 deletions
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5
src/video/vid_s3.c
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@@ -8,7 +8,7 @@
*
* S3 emulation.
*
* Version: @(#)vid_s3.c 1.0.27 2019/10/30
* Version: @(#)vid_s3.c 1.0.28 2019/10/31
*
* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
@@ -2660,7 +2660,8 @@ void s3_accel_start(int count, int cpu_input, uint32_t mix_dat, uint32_t cpu_dat
if (s3_cpu_dest(s3)) {
for (i = 0; i <= s3->bpp; i++)
s3->accel.pix_trans[read + i] = (dest_dat >> (i << 3)) & 0xff;
s3->accel.pix_trans[read + i] = (src_dat >> (i << 3)) & 0xff;
/* Yes, src_dat is correct, there is no mixing/ROP's done on PIX_TRANS reads. */
} else
WRITE(s3->accel.dest + s3->accel.cx);
}