Hi everybody!
I have a few questions about MEM_alloc (again!). :D
I have write one simple program to allocate memory to store pixel coordinate in
memory. I used DSP/BIOS, and my heap size is 0x00080000 in SDRAM with heap
identifier label SEG0. I have used MEM_calloc as below :
struct pixel * create_pixel(int m, int n)
{
struct pixel * temp = (struct pixel*)MEM_calloc(SEG0, 1*sizeof(struct pixel),
0);
if(temp==MEM_ILLEGAL)
{
LOG_printf(&trace, "Memory allocation for pixel failed");
exit(0);
}
else
{
temp->m = m;
temp->n = n;
temp->next = NULL;
}
return temp;
}
And I call the function above by using :
struct pixel * point;
SeedXA1[12][59];
SeedYA1[67][40];
point = create_pixel(SeedX, SeedY);
And the pixel properties is :
/* structure for a pixel */
struct pixel
{
int m;
int n;
struct pixel *next;
};
The code run successfully since the return value (temp) is equal to 0x8007FFF0
which is my SDRAM location.
Then, I have included this code into my big program to extract certain features
from the image taken, the program halted at :
00014C60 _MEM_valloc:
00014C60 753983A3 [!B2] MVC.S2 DP,ACR
00014C64 3FA1055A .word 0x3fa1055a
00014C68 1E79116F .word 0x1e79116f :HALTED HERE
00014C6C 3FA79C12 || [!B0] B.S2 0xFFFE8940 :AND HERE
When I check the return value (temp), it gives 1. What does this mean ? Is this
because of block align properties that I set to 0 ?
Please, I really hope that somebody can help me pointing me out from this
problem. Thanks in advance.
Best regards,
azreque
