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Adding rotation. 

Some test this week end and that should be it.
Placement still to be done.
This commit is contained in:
Frederic Petrot 2002-06-14 15:40:29 +00:00
parent 35445d0762
commit 0614cb6005
1 changed files with 24 additions and 6 deletions
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30
alliance/src/genlib/src/dpgen_Shifter.c
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@ -25,6 +25,11 @@
Author: Frédéric Pétrot
Date : 1/10/2000
$Log: dpgen_Shifter.c,v $
Revision 1.4 2002/06/14 15:40:29 fred
Adding rotation.
Some test this week end and that should be it.
Placement still to be done.
Revision 1.3 2002/06/13 15:38:39 fred
Starting implementation of rotatation, not yet usable.
@ -86,7 +91,7 @@
*/
static char rcsid[]="$Id: dpgen_Shifter.c,v 1.3 2002/06/13 15:38:39 fred Exp $";
static char rcsid[]="$Id: dpgen_Shifter.c,v 1.4 2002/06/14 15:40:29 fred Exp $";
#include "util_Defs.h"
@ -182,6 +187,12 @@ extern void dpgen_Shifter(aFunction, aAL)
#define A2(k, i0, i1, q) \
GENLIB_LOINS("a2_x2", XX_NAME("a_%d", k), i0, i1, q, "vdd", "vss", NULL)
#define A3(k, i0, i1, i2, q) \
GENLIB_LOINS("a3_x2", XX_NAME("a3_%d", k), i0, i1, i2, q, "vdd", "vss", NULL)
#define OA(k, i0, i1, i2, q) \
GENLIB_LOINS("oa22_x4", XX_NAME("oa_%d", k), i0, i1, i2, q, "vdd", "vss", NULL)
#define O2(k, i0, i1, q) \
GENLIB_LOINS("o2_x2", XX_NAME("o_%d", k), i0, i1, q, "vdd", "vss", NULL)
@ -206,9 +217,13 @@ extern void dpgen_Shifter(aFunction, aAL)
LSB = op(0);
MSB = "msb"; /* intermediate signal for arith sh */
/* Arithmetic extension */
if (flags == 0)
A2(AndIndex++, MuxOutput(n - 1), op(1), MSB);
/* Arithmetic or input extension */
if (flags == 1) {
INV(123, op(2), "op2b");
A3(123, i(n - 1), "op2b", op(1), MSB);
} else {
A2(123, i(n - 1), op(1), MSB);
}
/* Normalizing the input signals names */
for (BitIndex = 0; BitIndex < n; BitIndex++)
@ -219,6 +234,8 @@ extern void dpgen_Shifter(aFunction, aAL)
for (BitIndex = 0; BitIndex < n; BitIndex++) {
LeftIndex = BitIndex - (1 << SliceIndex);
RightIndex = BitIndex + (1 << SliceIndex);
printf("Slice: %d, Bit: %d, Li: %d, Ri: %d\n", SliceIndex,
BitIndex, LeftIndex, RightIndex);
if (flags == 0) {
MuxInput0 = LeftIndex >= 0 ? MuxOutput(SliceIndex * n + LeftIndex) : LSB;
MuxInput1 = MuxOutput(SliceIndex * n + BitIndex);
@ -228,14 +245,15 @@ extern void dpgen_Shifter(aFunction, aAL)
MuxInput0 = MuxOutput(SliceIndex * n + LeftIndex);
else {
MuxInput0 = x(AndIndex);
A2(AndIndex, op(2), MuxOutput(SliceIndex * n + n - 1), x(AndIndex)); AndIndex++;
A2(AndIndex, op(2), MuxOutput(SliceIndex * n + n + LeftIndex), x(AndIndex)); AndIndex++;
}
MuxInput1 = MuxOutput(SliceIndex * n + BitIndex);
if (RightIndex < n)
MuxInput2 = MuxOutput(SliceIndex * n + RightIndex);
else {
MuxInput2 = x(AndIndex);
A2(AndIndex, op(2), MuxOutput(SliceIndex * n + n - 1), x(AndIndex)); AndIndex++;
//A2(AndIndex, op(2), MuxOutput(SliceIndex * n + RightIndex - n), x(AndIndex)); AndIndex++;
OA(AndIndex, op(2), MuxOutput(SliceIndex * n + RightIndex - n), MSB, x(AndIndex)); AndIndex++;
}
}
MX3(c0(SliceIndex), c1(SliceIndex), MuxInput0, MuxInput1, MuxInput2, MuxOutput((SliceIndex + 1) * n + BitIndex));