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//
// Created by jwscoggins on 6/7/21.
//
#include <cortex/IODevice.h>
#include <cortex/IAC.h>
#include <cortex/SystemCounter.h>
#include <cortex/builtins.h>
#include <newlib.h>
#include <iostream>
#include <cortex/ChipsetInteract.h>
#include <stdio.h>
#include <math.h>
#include <string>
#include <sstream>
#include <cstring>
extern "C" {
#include <sys/time.h>
#include <sys/resource.h>
#include <stdio.h>
#include <microshell.h>
}
/* 'Uncomment' the line below to run */
/* with 'register double' variables */
/* defined, or compile with the */
/* '-DROPT' option. Don't need this if */
/* registers used automatically, but */
/* you might want to try it anyway. */
/* #define ROPT */
namespace microshell {
int read(ush_object*, char* ch) {
*ch = static_cast<char>(fgetc(stdin));
return 1;
}
int write(ush_object*, char ch) {
char c = static_cast<char>(fputc(ch, stdout));
return (c != ch) ? 0 : 1;
}
const ush_io_interface microshellIOInterface = {
microshell::read,
microshell::write,
};
#define SHELL_BUFFER_SIZE 256
char inputBuffer[SHELL_BUFFER_SIZE];
char outputBuffer[SHELL_BUFFER_SIZE];
const ush_descriptor microshellDescriptor = {
µshellIOInterface,
inputBuffer, sizeof(inputBuffer),
outputBuffer, sizeof(outputBuffer),
SHELL_BUFFER_SIZE,
"hitagimon960",
};
ush_object microshellObject;
void setup();
bool doMicroshell() {
return ush_service(µshellObject);
}
}
extern "C" void setupInterruptHandler();
extern "C" void initFP();
extern "C" void _init();
void
init()
{
// these routines must be first!
initFP();
setupInterruptHandler();
_init(); // must be first!
// setup the chipset basic functions as one of the first things we actually do
cortex::ChipsetBasicFunctions::begin();
// make sure that we configured the c runtime to not buffer the inputs and outputs
// this should allow each character to be printed out
}
void
printSegmentDescriptor(std::ostream& out, cortex::SegmentDescriptor& curr) {
out << "\t\t\tValid: " << std::boolalpha << curr.operator bool() << std::endl;
if (curr) {
out << "\t\t\tKind: ";
if (curr.isSmallSegmentTable()) {
out << "small segment" << std::endl;
} else if (curr.isLargeSegmentTable()) {
out << "large segment" << std::endl;
} else if (curr.isSimpleRegion()) {
out << "simple region" << std::endl;
} else if (curr.isProcedureTable()) {
out << "procedure table" << std::endl;
} else {
out << "unknown" << std::endl;
}
}
out << "\t\t\tData:" << std::endl;
for (int j = 0; j < 4; ++j) {
out << "\t\t\t\t" << std::dec << j << ": 0x" << std::hex << curr.backingStorage[j] << std::endl;
}
}
int
computeSegmentSelector(int index) noexcept {
return static_cast<int>((index << 6) | 0x3f);
}
void
printBaseSegmentTable(std::ostream& out, cortex::SegmentTable& segTable, int count) {
out << "\tKind: ";
if (segTable.isSmallSegmentTable()) {
out << "Small" << std::endl;
} else if (segTable.isLargeSegmentTable()) {
out << "Large" << std::endl;
} else {
out << "Unknown!" << std::endl;
}
// print out the first eight entries
out << "\tFirst " << std::dec << count << " Entries:" << std::endl;
for (int i = 0; i < count; ++i) {
out << "\t\t" << std::dec << i << " (0x" << std::hex << computeSegmentSelector(i) << "):" << std::endl;
printSegmentDescriptor(out, segTable.getDescriptor(i));
}
}
/**
* @brief Compute the duration of execution and stash the result in a provided rusage type
*/
class DurationTimer {
public:
DurationTimer(rusage& duration) : _duration(duration) {
getrusage(RUSAGE_SELF, &_start);
}
~DurationTimer() {
rusage _end;
getrusage(RUSAGE_SELF, &_end);
_duration.ru_utime.tv_sec = _end.ru_utime.tv_sec - _start.ru_utime.tv_sec;
_duration.ru_utime.tv_usec = _end.ru_utime.tv_usec - _start.ru_utime.tv_usec;
}
private:
rusage _start;
rusage& _duration;
};
void
setup() {
microshell::setup();
}
void loop() {
microshell::doMicroshell();
}
/*--------------------- Start flops.c source code ----------------------*/
/*****************************/
/* flops.c */
/* Version 2.0, 18 Dec 1992 */
/* Al Aburto */
/* [email protected] */
/*****************************/
/*
Flops.c is a 'c' program which attempts to estimate your systems
floating-point 'MFLOPS' rating for the FADD, FSUB, FMUL, and FDIV
operations based on specific 'instruction mixes' (discussed below).
The program provides an estimate of PEAK MFLOPS performance by making
maximal use of register variables with minimal interaction with main
memory. The execution loops are all small so that they will fit in
any cache. Flops.c can be used along with Linpack and the Livermore
kernels (which exersize memory much more extensively) to gain further
insight into the limits of system performance. The flops.c execution
modules also include various percent weightings of FDIV's (from 0% to
25% FDIV's) so that the range of performance can be obtained when
using FDIV's. FDIV's, being computationally more intensive than
FADD's or FMUL's, can impact performance considerably on some systems.
Flops.c consists of 8 independent modules (routines) which, except for
module 2, conduct numerical integration of various functions. Module
2, estimates the value of pi based upon the Maclaurin series expansion
of atan(1). MFLOPS ratings are provided for each module, but the
programs overall results are summerized by the MFLOPS(1), MFLOPS(2),
MFLOPS(3), and MFLOPS(4) outputs.
The MFLOPS(1) result is identical to the result provided by all
previous versions of flops.c. It is based only upon the results from
modules 2 and 3. Two problems surfaced in using MFLOPS(1). First, it
was difficult to completely 'vectorize' the result due to the
recurrence of the 's' variable in module 2. This problem is addressed
in the MFLOPS(2) result which does not use module 2, but maintains
nearly the same weighting of FDIV's (9.2%) as in MFLOPS(1) (9.6%).
The second problem with MFLOPS(1) centers around the percentage of
FDIV's (9.6%) which was viewed as too high for an important class of
problems. This concern is addressed in the MFLOPS(3) result where NO
FDIV's are conducted at all.
The number of floating-point instructions per iteration (loop) is
given below for each module executed:
MODULE FADD FSUB FMUL FDIV TOTAL Comment
1 7 0 6 1 14 7.1% FDIV's
2 3 2 1 1 7 difficult to vectorize.
3 6 2 9 0 17 0.0% FDIV's
4 7 0 8 0 15 0.0% FDIV's
5 13 0 15 1 29 3.4% FDIV's
6 13 0 16 0 29 0.0% FDIV's
7 3 3 3 3 12 25.0% FDIV's
8 13 0 17 0 30 0.0% FDIV's
A*2+3 21 12 14 5 52 A=5, MFLOPS(1), Same as
40.4% 23.1% 26.9% 9.6% previous versions of the
flops.c program. Includes
only Modules 2 and 3, does
9.6% FDIV's, and is not
easily vectorizable.
1+3+4 58 14 66 14 152 A=4, MFLOPS(2), New output
+5+6+ 38.2% 9.2% 43.4% 9.2% does not include Module 2,
A*7 but does 9.2% FDIV's.
1+3+4 62 5 74 5 146 A=0, MFLOPS(3), New output
+5+6+ 42.9% 3.4% 50.7% 3.4% does not include Module 2,
7+8 but does 3.4% FDIV's.
3+4+6 39 2 50 0 91 A=0, MFLOPS(4), New output
+8 42.9% 2.2% 54.9% 0.0% does not include Module 2,
and does NO FDIV's.
NOTE: Various timer routines are included as indicated below. The
timer routines, with some comments, are attached at the end
of the main program.
NOTE: Please do not remove any of the printouts.
EXAMPLE COMPILATION:
UNIX based systems
cc -DUNIX -O flops.c -o flops
cc -DUNIX -DROPT flops.c -o flops
cc -DUNIX -fast -O4 flops.c -o flops
.
.
.
etc.
Al Aburto
*/
template<typename FloatType = double>
struct FlopsCode {
FloatType nulltime, TimeArray[3]; /* Variables needed for 'dtime()'. */
FloatType TLimit; /* Threshold to determine Number of */
/* Loops to run. Fixed at 15.0 seconds.*/
FloatType T[36]; /* Global Array used to hold timing */
/* results and other information. */
FloatType sa, sb, sc, sd, one, two, three;
FloatType four, five, piref, piprg;
FloatType scale, pierr;
FloatType A0, A1, A2, A3, A4, A5, A6;
FloatType B0, B1, B2, B3, B4, B5, B6;
FloatType C0, C1, C2, C3, C4, C5, C6, C7, C8;
FloatType D1, D2, D3;
FloatType E2, E3;
std::string _msg;
explicit FlopsCode(const std::string& kind) : _msg(kind) {
A0 = 1.0;
A1 = -0.1666666666671334;
A2 = 0.833333333809067E-2;
A3 = 0.198412715551283E-3;
A4 = 0.27557589750762E-5;
A5 = 0.2507059876207E-7;
A6 = 0.164105986683E-9;
B0 = 1.0;
B1 = -0.4999999999982;
B2 = 0.4166666664651E-1;
B3 = -0.1388888805755E-2;
B4 = 0.24801428034E-4;
B5 = -0.2754213324E-6;
B6 = 0.20189405E-8;
C0 = 1.0;
C1 = 0.99999999668;
C2 = 0.49999995173;
C3 = 0.16666704243;
C4 = 0.4166685027E-1;
C5 = 0.832672635E-2;
C6 = 0.140836136E-2;
C7 = 0.17358267E-3;
C8 = 0.3931683E-4;
D1 = 0.3999999946405E-1;
D2 = 0.96E-3;
D3 = 0.1233153E-5;
E2 = 0.48E-3;
E3 = 0.411051E-6;
}
/* Loops to run. Fixed at 15.0 seconds.*/
int doIt() {
FloatType s, u, v, w, x;
long loops, NLimit;
long i, m, n;
printf("\n");
printf(" FLOPS C Program (%s), V2.0 18 Dec 1992\n\n", _msg.c_str());
/****************************/
loops = 15625; /* Initial number of loops. */
/* DO NOT CHANGE! */
/****************************/
/****************************************************/
/* Set Variable Values. */
/* T[1] references all timing results relative to */
/* one million loops. */
/* */
/* The program will execute from 31250 to 512000000 */
/* loops based on a runtime of Module 1 of at least */
/* TLimit = 15.0 seconds. That is, a runtime of 15 */
/* seconds for Module 1 is used to determine the */
/* number of loops to execute. */
/* */
/* No more than NLimit = 512000000 loops are allowed*/
/****************************************************/
T[1] = 1.0E+06 / (FloatType) loops;
TLimit = 15.0;
NLimit = 512000000;
piref = 3.14159265358979324;
one = 1.0;
two = 2.0;
three = 3.0;
four = 4.0;
five = 5.0;
scale = one;
printf(" Module Error RunTime MFLOPS\n");
printf(" (usec)\n");
/*************************/
/* Initialize the timer. */
/*************************/
dtime(TimeArray);
dtime(TimeArray);
/*******************************************************/
/* Module 1. Calculate integral of df(x)/f(x) defined */
/* below. Result is ln(f(1)). There are 14 */
/* FloatType precision operations per loop */
/* ( 7 +, 0 -, 6 *, 1 / ) that are included */
/* in the timing. */
/* 50.0% +, 00.0% -, 42.9% *, and 07.1% / */
/*******************************************************/
n = loops;
sa = 0.0;
while (sa < TLimit) {
n = 2 * n;
x = one / (FloatType) n; /*********************/
s = 0.0; /* Loop 1. */
v = 0.0; /*********************/
w = one;
dtime(TimeArray);
for (i = 1; i <= n - 1; i++) {
v = v + w;
u = v * x;
s = s + (D1 + u * (D2 + u * D3)) / (w + u * (D1 + u * (E2 + u * E3)));
}
dtime(TimeArray);
sa = TimeArray[1];
if (n == NLimit) break;
/* printf(" %10ld %12.5lf\n",n,sa); */
}
scale = 1.0E+06 / (FloatType) n;
T[1] = scale;
/****************************************/
/* Estimate nulltime ('for' loop time). */
/****************************************/
dtime(TimeArray);
for (i = 1; i <= n - 1; i++) {
}
dtime(TimeArray);
nulltime = T[1] * TimeArray[1];
if (nulltime < 0.0) nulltime = 0.0;
T[2] = T[1] * sa - nulltime;
sa = (D1 + D2 + D3) / (one + D1 + E2 + E3);
sb = D1;
T[3] = T[2] / 14.0; /*********************/
sa = x * (sa + sb + two * s) / two; /* Module 1 Results. */
sb = one / sa; /*********************/
n = (long) ((FloatType) (40000 * (long) sb) / scale);
sc = sb - 25.2;
T[4] = one / T[3];
/********************/
/* DO NOT REMOVE */
/* THIS PRINTOUT! */
/********************/
printf(" 1 %13.4le %10.4lf %10.4lf\n", sc, T[2], T[4]);
m = n;
/*******************************************************/
/* Module 2. Calculate value of PI from Taylor Series */
/* expansion of atan(1.0). There are 7 */
/* FloatType precision operations per loop */
/* ( 3 +, 2 -, 1 *, 1 / ) that are included */
/* in the timing. */
/* 42.9% +, 28.6% -, 14.3% *, and 14.3% / */
/*******************************************************/
s = -five; /********************/
sa = -one; /* Loop 2. */
/********************/
dtime(TimeArray);
for (i = 1; i <= m; i++) {
s = -s;
sa = sa + s;
}
dtime(TimeArray);
T[5] = T[1] * TimeArray[1];
if (T[5] < 0.0) T[5] = 0.0;
sc = (FloatType) m;
u = sa; /*********************/
v = 0.0; /* Loop 3. */
w = 0.0; /*********************/
x = 0.0;
dtime(TimeArray);
for (i = 1; i <= m; i++) {
s = -s;
sa = sa + s;
u = u + two;
x = x + (s - u);
v = v - s * u;
w = w + s / u;
}
dtime(TimeArray);
T[6] = T[1] * TimeArray[1];
T[7] = (T[6] - T[5]) / 7.0; /*********************/
m = (long) (sa * x / sc); /* PI Results */
sa = four * w / five; /*********************/
sb = sa + five / v;
sc = 31.25;
piprg = sb - sc / (v * v * v);
pierr = piprg - piref;
T[8] = one / T[7];
/*********************/
/* DO NOT REMOVE */
/* THIS PRINTOUT! */
/*********************/
printf(" 2 %13.4le %10.4lf %10.4lf\n", pierr, T[6] - T[5], T[8]);
/*******************************************************/
/* Module 3. Calculate integral of sin(x) from 0.0 to */
/* PI/3.0 using Trapazoidal Method. Result */
/* is 0.5. There are 17 FloatType precision */
/* operations per loop (6 +, 2 -, 9 *, 0 /) */
/* included in the timing. */
/* 35.3% +, 11.8% -, 52.9% *, and 00.0% / */
/*******************************************************/
x = piref / (three * (FloatType) m); /*********************/
s = 0.0; /* Loop 4. */
v = 0.0; /*********************/
dtime(TimeArray);
for (i = 1; i <= m - 1; i++) {
v = v + one;
u = v * x;
w = u * u;
s = s + u * ((((((A6 * w - A5) * w + A4) * w - A3) * w + A2) * w + A1) * w + one);
}
dtime(TimeArray);
T[9] = T[1] * TimeArray[1] - nulltime;
u = piref / three;
w = u * u;
sa = u * ((((((A6 * w - A5) * w + A4) * w - A3) * w + A2) * w + A1) * w + one);
T[10] = T[9] / 17.0; /*********************/
sa = x * (sa + two * s) / two; /* sin(x) Results. */
sb = 0.5; /*********************/
sc = sa - sb;
T[11] = one / T[10];
/*********************/
/* DO NOT REMOVE */
/* THIS PRINTOUT! */
/*********************/
printf(" 3 %13.4le %10.4lf %10.4lf\n", sc, T[9], T[11]);
/************************************************************/
/* Module 4. Calculate Integral of cos(x) from 0.0 to PI/3 */
/* using the Trapazoidal Method. Result is */
/* sin(PI/3). There are 15 FloatType precision */
/* operations per loop (7 +, 0 -, 8 *, and 0 / ) */
/* included in the timing. */
/* 50.0% +, 00.0% -, 50.0% *, 00.0% / */
/************************************************************/
A3 = -A3;
A5 = -A5;
x = piref / (three * (FloatType) m); /*********************/
s = 0.0; /* Loop 5. */
v = 0.0; /*********************/
dtime(TimeArray);
for (i = 1; i <= m - 1; i++) {
u = (FloatType) i * x;
w = u * u;
s = s + w * (w * (w * (w * (w * (B6 * w + B5) + B4) + B3) + B2) + B1) + one;
}
dtime(TimeArray);
T[12] = T[1] * TimeArray[1] - nulltime;
u = piref / three;
w = u * u;
sa = w * (w * (w * (w * (w * (B6 * w + B5) + B4) + B3) + B2) + B1) + one;
T[13] = T[12] / 15.0; /*******************/
sa = x * (sa + one + two * s) / two; /* Module 4 Result */
u = piref / three; /*******************/
w = u * u;
sb = u * ((((((A6 * w + A5) * w + A4) * w + A3) * w + A2) * w + A1) * w + A0);
sc = sa - sb;
T[14] = one / T[13];
/*********************/
/* DO NOT REMOVE */
/* THIS PRINTOUT! */
/*********************/
printf(" 4 %13.4le %10.4lf %10.4lf\n", sc, T[12], T[14]);
/************************************************************/
/* Module 5. Calculate Integral of tan(x) from 0.0 to PI/3 */
/* using the Trapazoidal Method. Result is */
/* ln(cos(PI/3)). There are 29 FloatType precision */
/* operations per loop (13 +, 0 -, 15 *, and 1 /)*/
/* included in the timing. */
/* 46.7% +, 00.0% -, 50.0% *, and 03.3% / */
/************************************************************/
x = piref / (three * (FloatType) m); /*********************/
s = 0.0; /* Loop 6. */
v = 0.0; /*********************/
dtime(TimeArray);
for (i = 1; i <= m - 1; i++) {
u = (FloatType) i * x;
w = u * u;
v = u * ((((((A6 * w + A5) * w + A4) * w + A3) * w + A2) * w + A1) * w + one);
s = s + v / (w * (w * (w * (w * (w * (B6 * w + B5) + B4) + B3) + B2) + B1) + one);
}
dtime(TimeArray);
T[15] = T[1] * TimeArray[1] - nulltime;
u = piref / three;
w = u * u;
sa = u * ((((((A6 * w + A5) * w + A4) * w + A3) * w + A2) * w + A1) * w + one);
sb = w * (w * (w * (w * (w * (B6 * w + B5) + B4) + B3) + B2) + B1) + one;
sa = sa / sb;
T[16] = T[15] / 29.0; /*******************/
sa = x * (sa + two * s) / two; /* Module 5 Result */
sb = 0.6931471805599453; /*******************/
sc = sa - sb;
T[17] = one / T[16];
/*********************/
/* DO NOT REMOVE */
/* THIS PRINTOUT! */
/*********************/
printf(" 5 %13.4le %10.4lf %10.4lf\n", sc, T[15], T[17]);
/************************************************************/
/* Module 6. Calculate Integral of sin(x)*cos(x) from 0.0 */
/* to PI/4 using the Trapazoidal Method. Result */
/* is sin(PI/4)^2. There are 29 FloatType precision */
/* operations per loop (13 +, 0 -, 16 *, and 0 /)*/
/* included in the timing. */
/* 46.7% +, 00.0% -, 53.3% *, and 00.0% / */
/************************************************************/
x = piref / (four * (FloatType) m); /*********************/
s = 0.0; /* Loop 7. */
v = 0.0; /*********************/
dtime(TimeArray);
for (i = 1; i <= m - 1; i++) {
u = (FloatType) i * x;
w = u * u;
v = u * ((((((A6 * w + A5) * w + A4) * w + A3) * w + A2) * w + A1) * w + one);
s = s + v * (w * (w * (w * (w * (w * (B6 * w + B5) + B4) + B3) + B2) + B1) + one);
}
dtime(TimeArray);
T[18] = T[1] * TimeArray[1] - nulltime;
u = piref / four;
w = u * u;
sa = u * ((((((A6 * w + A5) * w + A4) * w + A3) * w + A2) * w + A1) * w + one);
sb = w * (w * (w * (w * (w * (B6 * w + B5) + B4) + B3) + B2) + B1) + one;
sa = sa * sb;
T[19] = T[18] / 29.0; /*******************/
sa = x * (sa + two * s) / two; /* Module 6 Result */
sb = 0.25; /*******************/
sc = sa - sb;
T[20] = one / T[19];
/*********************/
/* DO NOT REMOVE */
/* THIS PRINTOUT! */
/*********************/
printf(" 6 %13.4le %10.4lf %10.4lf\n", sc, T[18], T[20]);
/*******************************************************/
/* Module 7. Calculate value of the definite integral */
/* from 0 to sa of 1/(x+1), x/(x*x+1), and */
/* x*x/(x*x*x+1) using the Trapizoidal Rule.*/
/* There are 12 FloatType precision operations */
/* per loop ( 3 +, 3 -, 3 *, and 3 / ) that */
/* are included in the timing. */
/* 25.0% +, 25.0% -, 25.0% *, and 25.0% / */
/*******************************************************/
/*********************/
s = 0.0; /* Loop 8. */
w = one; /*********************/
sa = 102.3321513995275;
v = sa / (FloatType) m;
dtime(TimeArray);
for (i = 1; i <= m - 1; i++) {
x = (FloatType) i * v;
u = x * x;
s = s - w / (x + w) - x / (u + w) - u / (x * u + w);
}
dtime(TimeArray);
T[21] = T[1] * TimeArray[1] - nulltime;
/*********************/
/* Module 7 Results */
/*********************/
T[22] = T[21] / 12.0;
x = sa;
u = x * x;
sa = -w - w / (x + w) - x / (u + w) - u / (x * u + w);
sa = 18.0 * v * (sa + two * s);
m = -2000 * (long) sa;
m = (long) ((FloatType) m / scale);
sc = sa + 500.2;
T[23] = one / T[22];
/********************/
/* DO NOT REMOVE */
/* THIS PRINTOUT! */
/********************/
printf(" 7 %13.4le %10.4lf %10.4lf\n", sc, T[21], T[23]);
/************************************************************/
/* Module 8. Calculate Integral of sin(x)*cos(x)*cos(x) */
/* from 0 to PI/3 using the Trapazoidal Method. */
/* Result is (1-cos(PI/3)^3)/3. There are 30 */
/* FloatType precision operations per loop included */
/* in the timing: */
/* 13 +, 0 -, 17 * 0 / */
/* 46.7% +, 00.0% -, 53.3% *, and 00.0% / */
/************************************************************/
x = piref / (three * (FloatType) m); /*********************/
s = 0.0; /* Loop 9. */
v = 0.0; /*********************/
dtime(TimeArray);
for (i = 1; i <= m - 1; i++) {
u = (FloatType) i * x;
w = u * u;
v = w * (w * (w * (w * (w * (B6 * w + B5) + B4) + B3) + B2) + B1) + one;
s = s + v * v * u * ((((((A6 * w + A5) * w + A4) * w + A3) * w + A2) * w + A1) * w + one);
}
dtime(TimeArray);
T[24] = T[1] * TimeArray[1] - nulltime;
u = piref / three;
w = u * u;
sa = u * ((((((A6 * w + A5) * w + A4) * w + A3) * w + A2) * w + A1) * w + one);
sb = w * (w * (w * (w * (w * (B6 * w + B5) + B4) + B3) + B2) + B1) + one;
sa = sa * sb * sb;
T[25] = T[24] / 30.0; /*******************/
sa = x * (sa + two * s) / two; /* Module 8 Result */
sb = 0.29166666666666667; /*******************/
sc = sa - sb;
T[26] = one / T[25];
/*********************/
/* DO NOT REMOVE */
/* THIS PRINTOUT! */
/*********************/
printf(" 8 %13.4le %10.4lf %10.4lf\n", sc, T[24], T[26]);
/**************************************************/
/* MFLOPS(1) output. This is the same weighting */
/* used for all previous versions of the flops.c */
/* program. Includes Modules 2 and 3 only. */
/**************************************************/
T[27] = (five * (T[6] - T[5]) + T[9]) / 52.0;
T[28] = one / T[27];
/**************************************************/
/* MFLOPS(2) output. This output does not include */
/* Module 2, but it still does 9.2% FDIV's. */
/**************************************************/
T[29] = T[2] + T[9] + T[12] + T[15] + T[18];
T[29] = (T[29] + four * T[21]) / 152.0;
T[30] = one / T[29];
/**************************************************/
/* MFLOPS(3) output. This output does not include */
/* Module 2, but it still does 3.4% FDIV's. */
/**************************************************/
T[31] = T[2] + T[9] + T[12] + T[15] + T[18];
T[31] = (T[31] + T[21] + T[24]) / 146.0;
T[32] = one / T[31];
/**************************************************/
/* MFLOPS(4) output. This output does not include */
/* Module 2, and it does NO FDIV's. */
/**************************************************/
T[33] = (T[9] + T[12] + T[18] + T[24]) / 91.0;
T[34] = one / T[33];
printf("\n");
printf(" Iterations = %10ld\n", m);
printf(" NullTime (usec) = %10.4lf\n", nulltime);
printf(" MFLOPS(1) = %10.4lf\n", T[28]);
printf(" MFLOPS(2) = %10.4lf\n", T[30]);
printf(" MFLOPS(3) = %10.4lf\n", T[32]);
printf(" MFLOPS(4) = %10.4lf\n\n", T[34]);
return 0;
}
/*****************************************************/
/* Various timer routines. */
/* Al Aburto, [email protected], 18 Feb 1997 */
/* */
/* dtime(p) outputs the elapsed time seconds in p[1] */
/* from a call of dtime(p) to the next call of */
/* dtime(p). Use CAUTION as some of these routines */
/* will mess up when timing across the hour mark!!! */
/* */
/* For timing I use the 'user' time whenever */
/* possible. Using 'user+sys' time is a separate */
/* issue. */
/* */
/* Example Usage: */
/* [Timer options added here] */
/* FloatType RunTime, TimeArray[3]; */
/* main() */
/* { */
/* dtime(TimeArray); */
/* [routine to time] */
/* dtime(TimeArray); */
/* RunTime = TimeArray[1]; */
/* } */
/* [Timer code added here] */
/*****************************************************/
/******************************/
/* Timer code. */
/******************************/
/*****************************************************/
/* UNIX dtime(). This is the preferred UNIX timer. */
/* Provided by: Markku Kolkka, [email protected] */
/* HP-UX Addition by: Bo Thide', [email protected] */
/*****************************************************/
struct rusage rusage;
int dtime(FloatType p[]) {
FloatType q = p[2];
getrusage(RUSAGE_SELF, &rusage);
p[2] = (FloatType) (rusage.ru_utime.tv_sec);
p[2] = p[2] + (FloatType) (rusage.ru_utime.tv_usec) * 1.0e-06;
p[1] = p[2] - q;
return 0;
}
};
/*------ End flops.c code, say good night Jan! (Sep 1992) ------*/
namespace microshell {
void doFlops64Execution(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
FlopsCode<double> fc("double precision");
fc.doIt();
}
void doFlops32Execution(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
FlopsCode<float> fc2("single precision");
fc2.doIt();
}
void doU64AddTest(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
if (argc != 3) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_WRONG_ARGUMENTS);
return;
}
uint64_t a = 0;
uint64_t b = 0;
if (sscanf(argv[1], "%llx", &a) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
if (sscanf(argv[2], "%llx", &b) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
uint64_t stockResult = a + b;
uint64_t optionalResult = u64_add_via_addc(a, b);
printf("Unsigned 64-bit numbers");
printf("Operation: 0x%llx + 0x%llx\n", a, b);
printf("Standard Result: 0x%llx\n", stockResult);
printf("Addc Method: 0x%llx\n", optionalResult);
}
void doS64AddTest(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
if (argc != 3) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_WRONG_ARGUMENTS);
return;
}
int64_t a = 0;
int64_t b = 0;
if (sscanf(argv[1], "%lld", &a) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
if (sscanf(argv[2], "%lld", &b) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
int64_t stockResult = a + b;
int64_t optionalResult = s64_add_via_addc(a, b);
printf("Signed 64-bit numbers");
printf("Operation: %lld + %lld\n", a, b);
printf("Standard Result: %lld\n", stockResult);
printf("Addc Method: %lld\n", optionalResult);
}
void doU64SubTest(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
if (argc != 3) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_WRONG_ARGUMENTS);
return;
}
uint64_t a = 0;
uint64_t b = 0;
if (sscanf(argv[1], "%llx", &a) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
if (sscanf(argv[2], "%llx", &b) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
uint64_t stockResult = a - b;
uint64_t optionalResult = u64_subtract_via_subc(a, b);
uint64_t optionalResult2 = u64_subtract_via_subc_v2(a, b);
uint64_t optionalResult3 = u64_subtract_via_subc_v3(a, b);
uint64_t optionalResult4 = u64_subtract_via_subc_v4(a, b);
printf("Unsigned 64-bit numbers");
printf("Operation: 0x%llx - 0x%llx\n", a, b);
printf("Standard Result: 0x%llx\n", stockResult);
printf("Subc Method (v1): 0x%llx\n", optionalResult);
printf("Subc Method (v2): 0x%llx\n", optionalResult2);
printf("Subc Method (v3): 0x%llx\n", optionalResult3);
printf("Subc Method (v4): 0x%llx\n", optionalResult4);
uint64_t optionalResult5 = u64_subtract_via_subc_v5(a, b);
printf("Subc Method (v5): 0x%llx\n", optionalResult5);
uint64_t optionalResult6 = u64_subtract_via_subc_v6(a, b);
printf("Subc Method (v6): 0x%llx\n", optionalResult6);
uint64_t optionalResult7 = u64_subtract_via_subc_v7(a, b);
printf("Subc Method (v7): 0x%llx\n", optionalResult7);
}
void doS64SubTest(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
if (argc != 3) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_WRONG_ARGUMENTS);
return;
}
int64_t a = 0;
int64_t b = 0;
if (sscanf(argv[1], "%lld", &a) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
if (sscanf(argv[2], "%lld", &b) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
int64_t stockResult = a - b;
int64_t optionalResult = s64_subtract_via_subc(a, b);
int64_t optionalResult2 = s64_subtract_via_subc_v2(a, b);
int64_t optionalResult3 = s64_subtract_via_subc_v3(a, b);
int64_t optionalResult4 = s64_subtract_via_subc_v4(a, b);
printf("Signed 64-bit numbers");
printf("Operation: %lld - %lld\n", a, b);
printf("Standard Result: %lld\n", stockResult);
#define X(var) ((var == stockResult) ? "yes" : "no")
printf("Subc Method (v1): %lld [matches: %s]\n", optionalResult, X(optionalResult));
printf("Subc Method (v2): %lld [matches: %s]\n", optionalResult2, X(optionalResult2));
printf("Subc Method (v3): %lld [matches: %s]\n", optionalResult3, X(optionalResult3));
printf("Subc Method (v4): %lld [matches: %s]\n", optionalResult4, X(optionalResult4));
int64_t optionalResult5 = s64_subtract_via_subc_v5(a, b);
printf("Subc Method (v5): %lld [matches: %s]\n", optionalResult5, X(optionalResult5));
int64_t optionalResult6 = s64_subtract_via_subc_v6(a, b);
printf("Subc Method (v6): %lld [matches: %s]\n", optionalResult6, X(optionalResult6));
int64_t optionalResult7 = s64_subtract_via_subc_v7(a, b);
printf("Subc Method (v7): %lld [matches: %s]\n", optionalResult7, X(optionalResult7));
#undef X
}
void doRotateOperation(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
if (argc != 3) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_WRONG_ARGUMENTS);
return;
}
uint32_t src = 0;
uint32_t len = 0;
if (sscanf(argv[1], "%lx", &src) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
if (sscanf(argv[2], "%lx", &len) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
uint32_t result = u32_rotate(src, len);
printf("rotate(0x%lx, 0x%lx) = 0x%lx\n", src, len, result);
}
void doScanbitOperation(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
if (argc != 2) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_WRONG_ARGUMENTS);
return;
}
uint32_t src = 0;
if (sscanf(argv[1], "%lx", &src) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
uint32_t result = scanbit32(src);
printf("scanbit(0x%lx) = 0x%lx\n", src, result);
}
void doSpanbitOperation(ush_object* self, ush_file_descriptor const* file, int argc, char* argv[]) {
if (argc != 2) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_WRONG_ARGUMENTS);
return;
}
uint32_t src = 0;
if (sscanf(argv[1], "%lx", &src) == EOF) {
ush_print_status(self, USH_STATUS_ERROR_COMMAND_SYNTAX_ERROR);
return;
}
uint32_t result = spanbit32(src);
printf("spanbit(0x%lx) = 0x%lx\n", src, result);
}
inline bool isQuodigious(uint32_t value, uint32_t sum, uint32_t product) {
return ((value % product) == 0) && ((value % sum) == 0);
}
constexpr uint32_t factors10[10] = {
1, // 0
10, // 1
10 * 10, // 2
10 * 10 * 10, // 3
10 * 10 * 10 * 10, // 4
10 * 10 * 10 * 10 * 10, // 5
10 * 10 * 10 * 10 * 10 * 10, // 6
10 * 10 * 10 * 10 * 10 * 10 * 10, // 7
10 * 10 * 10 * 10 * 10 * 10 * 10 * 10, // 8
10 * 10 * 10 * 10 * 10 * 10 * 10 * 10 * 10, // 9
};
void doQuodigious(uint8_t depth, uint32_t number = 0, uint32_t sum = 0, uint32_t product = 1) {
switch (depth) {
case 0:
if (isQuodigious(number, sum, product)) {
printf("%lu\n", number);
}
break;
case 1 ... 3: {
const uint8_t innerDepth = depth - 1;
const uint32_t baseFactor = factors10[innerDepth];
for (int i = 2; i < 10; ++i) {
doQuodigious(innerDepth, number + (baseFactor * i), sum + i, product * i);
}
break;
}
default: {
const uint8_t innerDepth = depth - 1;
const uint32_t baseFactor = factors10[innerDepth];