CCS C Compiler Manual PCB / PCM / PCH

PreProcessor
{
int8 a;
int16 b;
} test;
Care should be taken by the user when accessing individual elements
of a packed struct – creating a pointer to 'b' in 'test' and attempting to
dereference that pointer would cause an address fault. Any attempts
to read/write 'b' should be done in context of 'test' so the compiler
knows it is packed:
test.b = 5;
Purpose
Examples:
Example Files:
((aligned(y))
By default the compiler will alocate a variable in the first free memory
location. The aligned attribute will force the compiler to allocate a
location for the specified variable at a location that is modulus of the y
parameter. For example:
int8 array[256] __attribute__((aligned(0x1000)));
This will tell the compiler to try to place 'array' at either 0x0, 0x1000,
0x2000, 0x3000, 0x4000, etc.
To alter some specifics as to how the compiler operates
struct __attribute__((packed))
{
int8 a;
int8 b;
} test;
int8 array[256] __attribute__((aligned(0x1000)));
None
#asm #endasm
Syntax:
Elements:
Examples:
Example Files:
#ASM or #ASM ASIS code #ENDASM
code is a list of assembly language instructions
int_ffind_parity(int data){int count;, result,datal; data1=data; asm MOV
#0x08, MOV WF, count CLRF result Loop: MOVF data1,w XORWF
result, F RRCF data1,F DECFSZ count,F BRA LOOP MOVLW 0x01
ANDWF resutt, F #end asm
retturn (result)';
}
ex_glint.c
85