root / man / man3 / HPL_xjumpm.3
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| 1 | 1 | equemene | .TH HPL_xjumpm 3 "September 10, 2008" "HPL 2.0" "HPL Library Functions" |
|---|---|---|---|
| 2 | 1 | equemene | .SH NAME |
| 3 | 1 | equemene | HPL_xjumpm \- Compute constants to jump in the random sequence. |
| 4 | 1 | equemene | .SH SYNOPSIS |
| 5 | 1 | equemene | \fB\&#include "hpl.h"\fR |
| 6 | 1 | equemene | |
| 7 | 1 | equemene | \fB\&void\fR |
| 8 | 1 | equemene | \fB\&HPL_xjumpm(\fR |
| 9 | 1 | equemene | \fB\&const int\fR |
| 10 | 1 | equemene | \fI\&JUMPM\fR, |
| 11 | 1 | equemene | \fB\&int *\fR |
| 12 | 1 | equemene | \fI\&MULT\fR, |
| 13 | 1 | equemene | \fB\&int *\fR |
| 14 | 1 | equemene | \fI\&IADD\fR, |
| 15 | 1 | equemene | \fB\&int *\fR |
| 16 | 1 | equemene | \fI\&IRANN\fR, |
| 17 | 1 | equemene | \fB\&int *\fR |
| 18 | 1 | equemene | \fI\&IRANM\fR, |
| 19 | 1 | equemene | \fB\&int *\fR |
| 20 | 1 | equemene | \fI\&IAM\fR, |
| 21 | 1 | equemene | \fB\&int *\fR |
| 22 | 1 | equemene | \fI\&ICM\fR |
| 23 | 1 | equemene | \fB\&);\fR |
| 24 | 1 | equemene | .SH DESCRIPTION |
| 25 | 1 | equemene | \fB\&HPL_xjumpm\fR |
| 26 | 1 | equemene | computes the constants A and C to jump JUMPM numbers in |
| 27 | 1 | equemene | the random sequence: X(n+JUMPM) = A*X(n)+C. The constants encoded in |
| 28 | 1 | equemene | MULT and IADD specify how to jump from one entry in the sequence to |
| 29 | 1 | equemene | the next. |
| 30 | 1 | equemene | .SH ARGUMENTS |
| 31 | 1 | equemene | .TP 8 |
| 32 | 1 | equemene | JUMPM (local input) const int |
| 33 | 1 | equemene | On entry, JUMPM specifies the number of entries in the |
| 34 | 1 | equemene | sequence to jump over. When JUMPM is less or equal than zero, |
| 35 | 1 | equemene | A and C are not computed, IRANM is set to IRANN corresponding |
| 36 | 1 | equemene | to a jump of size zero. |
| 37 | 1 | equemene | .TP 8 |
| 38 | 1 | equemene | MULT (local input) int * |
| 39 | 1 | equemene | On entry, MULT is an array of dimension 2, that contains the |
| 40 | 1 | equemene | 16-lower and 15-higher bits of the constant a to jump from |
| 41 | 1 | equemene | X(n) to X(n+1) = a*X(n) + c in the random sequence. |
| 42 | 1 | equemene | .TP 8 |
| 43 | 1 | equemene | IADD (local input) int * |
| 44 | 1 | equemene | On entry, IADD is an array of dimension 2, that contains the |
| 45 | 1 | equemene | 16-lower and 15-higher bits of the constant c to jump from |
| 46 | 1 | equemene | X(n) to X(n+1) = a*X(n) + c in the random sequence. |
| 47 | 1 | equemene | .TP 8 |
| 48 | 1 | equemene | IRANN (local input) int * |
| 49 | 1 | equemene | On entry, IRANN is an array of dimension 2. that contains the |
| 50 | 1 | equemene | 16-lower and 15-higher bits of the encoding of X(n). |
| 51 | 1 | equemene | .TP 8 |
| 52 | 1 | equemene | IRANM (local output) int * |
| 53 | 1 | equemene | On entry, IRANM is an array of dimension 2. On exit, this |
| 54 | 1 | equemene | array contains respectively the 16-lower and 15-higher bits |
| 55 | 1 | equemene | of the encoding of X(n+JUMPM). |
| 56 | 1 | equemene | .TP 8 |
| 57 | 1 | equemene | IAM (local output) int * |
| 58 | 1 | equemene | On entry, IAM is an array of dimension 2. On exit, when JUMPM |
| 59 | 1 | equemene | is greater than zero, this array contains the encoded |
| 60 | 1 | equemene | constant A to jump from X(n) to X(n+JUMPM) in the random |
| 61 | 1 | equemene | sequence. IAM(0:1) contains respectively the 16-lower and |
| 62 | 1 | equemene | 15-higher bits of this constant A. When JUMPM is less or |
| 63 | 1 | equemene | equal than zero, this array is not referenced. |
| 64 | 1 | equemene | .TP 8 |
| 65 | 1 | equemene | ICM (local output) int * |
| 66 | 1 | equemene | On entry, ICM is an array of dimension 2. On exit, when JUMPM |
| 67 | 1 | equemene | is greater than zero, this array contains the encoded |
| 68 | 1 | equemene | constant C to jump from X(n) to X(n+JUMPM) in the random |
| 69 | 1 | equemene | sequence. ICM(0:1) contains respectively the 16-lower and |
| 70 | 1 | equemene | 15-higher bits of this constant C. When JUMPM is less or |
| 71 | 1 | equemene | equal than zero, this array is not referenced. |
| 72 | 1 | equemene | .SH SEE ALSO |
| 73 | 1 | equemene | .BR HPL_ladd \ (3), |
| 74 | 1 | equemene | .BR HPL_lmul \ (3), |
| 75 | 1 | equemene | .BR HPL_setran \ (3), |
| 76 | 1 | equemene | .BR HPL_jumpit \ (3), |
| 77 | 1 | equemene | .BR HPL_rand \ (3). |