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URL https://opencores.org/ocsvn/ae18/ae18/trunk

Subversion Repositories ae18

Compare Revisions

  • This comparison shows the changes necessary to convert path 
    /
    from Rev 12 to Rev 13
    ↔ Reverse comparison
  •

Rev 12 → Rev 13

/trunk/sim/ae18_core.rom
1,307 → 1,890
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/trunk/sw/c/ae18_testbench.c
0,0 → 1,119
/*
* $Id: ae18_testbench.c,v 1.1 2007-04-03 22:09:48 sybreon Exp $
*
* AE18 Functional Verification C Code
* Copyright (C) 2006 Shawn Tan Ser Ngiap <shawn.tan@aeste.net>
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License,
* or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* DESCRIPTION
*
* Runs a test programme that calculates the Fibonnaci sequence with
* different algorithms, a recursive one and an iterative one. This is
* checked against the values in a look up table.
*
* HISTORY
* $Log: not supported by cvs2svn $
*/
 
#include <pic18fregs.h>
#pragma stack 0x200 100
 
/* Interrupt Handlers */
void isr_hi () interrupt 1 {
}
 
void isr_low () interrupt 2 {
}
 
/* Recursive Version */
 
unsigned int slowfib(unsigned int n)
{
return n < 2 ? n : slowfib(n-1) + slowfib(n-2);
}
 
/* Iterative Version */
 
unsigned int fastfib(unsigned int n)
{
unsigned int a[3];
unsigned int *p=a;
unsigned int i;
for(i=0; i<=n; ++i) {
if(i<2) *p=i;
else {
if(p==a) *p=*(a+1)+*(a+2);
else if(p==a+1) *p=*a+*(a+2);
else *p=*a+*(a+1);
}
if(++p>a+2) p=a;
}
return p==a?*(p+2):*(p-1);
}
 
/* Compare the Results */
 
int main() {
unsigned int n;
unsigned int fib_res;
unsigned int fib_lut[] = {0,
1,
1,
2,
3,
5,
8,
13,
21,
34,
55,
89,
144,
233,
377,
610,
987,
1597,
2584,
4181,
6765,
10946,
17711,
28657,
46368,
75025,
121393,
196418,
317811,
514229,
832040,
1346269,
2178309,
3524578,
5702887};
for (n=0;n<35;n++) {
fib_res = slowfib(n);
while ((fib_res != fastfib(n)) || (fib_res != fib_lut[n])) {
fib_lut[n] = fib_res;
}
fib_lut[n] = fib_res;
}
return fib_res;
}
/trunk/sw/sdccrom
0,0 → 1,11
#!/bin/sh
# $Id: sdccrom,v 1.1 2007-04-03 22:09:48 sybreon Exp $
#
#sdcc -mpic16 --optimize-goto --optimize-cmp --optimize-df --obanksel=1 -o rom $@ && \
sdcc -mpic16 -o rom $@ && \
objcopy -I ihex -O binary rom.hex rom.bin && \
hexdump -v -e'1/2 "%.4X\n"' rom.bin > rom.rom && \
mv rom.rom ../sim/ae18_core.rom && \
mv rom.lst sdccrom.lst && \
rm rom.* && \
echo "ROM generated"
trunk/sw/sdccrom Property changes : Added: svn:executable ## -0,0 +1 ## +* \ No newline at end of property

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