1 files changed, 0 insertions, 85 deletions
diff --git a/hw/kdrive/trio/s3clock.c b/hw/kdrive/trio/s3clock.c
deleted file mode 100644
index 9f2d313ca..000000000
--- a/hw/kdrive/trio/s3clock.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright © 1999 Keith Packard
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Keith Packard makes no
- * representations about the suitability of this software for any purpose.  It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <kdrive-config.h>
-#endif
-#include "s3.h"
-
-/*
- * Clock synthesis:
- *
- *  f_out = f_ref * ((M + 2) / ((N + 2) * (1 << R)))
- *
- *  Constraints:
- *
- *  1.	135MHz <= f_ref * ((M + 2) / (N + 2)) <= 270 MHz
- *  2.	N >= 1
- *
- *  Vertical refresh rate = clock / ((hsize + hblank) * (vsize + vblank))
- *  Horizontal refresh rate = clock / (hsize + hblank)
- */
- 
-/* all in kHz */
-#define MIN_VCO	180000.0
-#define MAX_VCO 360000.0
-
-void
-s3GetClock (int target, int *Mp, int *Np, int *Rp, int maxM, int maxN, int maxR)
-{
-    int	    M, N, R, bestM, bestN;
-    int	    f_vco, f_out;
-    int	    err, abserr, besterr;
-
-    /*
-     * Compute correct R value to keep VCO in range
-     */
-    for (R = 0; R <= maxR; R++)
-    {
-	f_vco = target * (1 << R);
-	if (MIN_VCO <= f_vco && f_vco < MAX_VCO)
-	    break;
-    }
-
-    /* M = f_out / f_ref * ((N + 2) * (1 << R)); */
-    besterr = target;
-    for (N = 0; N <= maxN; N++)
-    {
-	M = (target * (N + 2) * (1 << R) + (S3_CLOCK_REF/2)) / S3_CLOCK_REF - 2;
-	if (0 <= M && M <= maxM)
-	{
-	    f_out = S3_CLOCK(M,N,R);
-	    err = target - f_out;
-	    if (err < 0)
-		err = -err;
-	    if (err < besterr)
-	    {
-		besterr = err;
-		bestM = M;
-		bestN = N;
-	    }
-	}
-    }
-    *Mp = bestM;
-    *Np = bestN;
-    *Rp = R;
-}