I am using CCSv6.1.2 with Windows 7 on a DSK6713. I built a simple program that calls a function to do a dot product in c. It is written so I can turn off the c code and compile the project with an dotp product asm file. The intent is to not only step through C code and ASM code but to look at clock cycle profiling of different versions of the ASM code. I have seen this in the past where c_int00 was not defined with the default build ... but I was able to turn off optimizations and I could run to a breakpoint and then do source stepping ... I think there is some new "feature" of CCSv6.1.2 that I need to configure to make this work. Also, I would appreciate any help on setting up the profile clock for CCSv6.1.2. Thanks,
Tom Dillon
contents of main.c:
/* Prototype */
int dotp(short *m, short *n, int count);
/* Include Files */
#include "data.h"
/* Definitions */
#define COUNT 256
/* Declarations */
short a[COUNT] = {A_ARRAY};
short x[COUNT] = {X_ARRAY};
int y = 0;
/* Main Code */
main()
{
y = dotp(a, x, COUNT);
}
#if 1
int dotp(short *m, short *n, int count)
{
int i;
int sum = 0;
for (i=0; i < count; i++)
{
sum = sum + m[i] * n[i];
}
return(sum);
}
#endif
contents of dotp_asm.asm:
*
* Dotp assembly subroutine
*
.global _dotp
******************************************************
*
* Register definitions
* A0 = a value
* A1 = x value
* A2 = counter
* A3 = product
* A4 = address of a and Y to be returned
* A6 = original counter value
* B0 = working Y value
* B4 = address of x
*****************************************************
.sect ".text" ; What section is this put into
; so the linker can find it
dotp .asmfunc
_dotp:
zero B0 ; initilize y=0
mv A6, A2 ; set up counter
loop ldh *A4++, A0 ; put the value of a into A0
ldh *B4++, A1 ; put the value of x into A1
nop 4
mpy A0, A1, A3 ; a * x --> product
nop ; put counter into A2
add A3, B0, B0 ; product + previous Y = Y
sub A2,1,A2
[A2] b loop ; repeat loop counter times
nop 5
mv B0, A4 ; store return value
b B3 ; return to main
nop 5
.endasmfunc
contents of data.h:
#define A_ARRAY 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256
#define X_ARRAY 256,255,254,253,252,251,250,249,248,247,246,245,244,243,242,241,240,239,238,237,236,235,234,233,232,231,230,229,228,227,226,225,224,223,222,221,220,219,218,217,216,215,214,213,212,211,210,209,208,207,206,205,204,203,202,201,200,199,198,197,196,195,194,193,192,191,190,189,188,187,186,185,184,183,182,181,180,179,178,177,176,175,174,173,172,171,170,169,168,167,166,165,164,163,162,161,160,159,158,157,156,155,154,153,152,151,150,149,148,147,146,145,144,143,142,141,140,139,138,137,136,135,134,133,132,131,130,129,128,127,126,125,124,123,122,121,120,119,118,117,116,115,114,113,112,111,110,109,108,107,106,105,104,103,102,101,100,99,98,97,96,95,94,93,92,91,90,89,88,87,86,85,84,83,82,81,80,79,78,77,76,75,74,73,72,71,70,69,68,67,66,65,64,63,62,61,60,59,58,57,56,55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,39,38,37,36,35,34,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1
