SW006012 Microchip Technology, SW006012 Datasheet - Page 145

• Manufacturer Part Number: SW006012
• Description: C COMPILER FOR DSPIC30F FAMILY
• Manufacturer: Microchip Technology
• Type: MPLAB® C30 Compilerr
• Series: PIC24 & DsPICr

Specifications of SW006012

• Supported Families: PIC24, DsPIC30F And DsPIC33F
• Core Architecture: PIC, DsPIC
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC24 MCUs And DsPIC DSCs
• Tool Type: Compiler
• Processor Series: PIC24, dsPIC
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: dsPIC30F
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2007 Microchip Technology Inc.
__
Description:
Prototype:
Argument:
Return Value:
Assembler Opera-
tor / Machine
Instruction:
Error Messages
__
Description:
builtin_ed
builtin_edac
Squares sqr, returning it as the result. Also prefetchs data for future
square operation by computing **xptr - **yptr and storing the
result in *distance.
xincr and yincr may be the literal values: -6, -4, -2, 0, 2, 4, 6 or an
integer value.
For example:
might generate:
int __builtin_ed(int sqr, int **xptr, int xincr,
sqr
xptr
xincr
yptr
yincr
distance
Returns the squared result to an accumulator.
ed
An error message will be displayed if:
• the result is not an accumulator register
• xptr is null
• yptr is null
• distance is null
Squares sqr and sums with the nominated accumulator register,
returning it as the result. Also prefetchs data for future square operation
by computing **xptr - **yptr and storing the result in *distance.
xincr and yincr may be the literal values: -6, -4, -2, 0, 2, 4, 6 or an
integer value.
For example:
might generate:
register int result asm("A");
int *xmemory, *ymemory;
int distance;
result = __builtin_ed(distance,
int **yptr, int yincr, int *distance);
register int result asm("A");
int *xmemory, *ymemory;
int distance;
result = __builtin_ed(distance,
MPLAB C30 Built-in Functions
ed w4*w4, A, [w8]+=2, [W10]+=2, w4
ed w4*w4, A, [w8]+=2, [W10]+=2, w4
Integer squared value.
Integer pointer to pointer to x prefetch.
Integer increment value of x prefetch.
Integer pointer to pointer to y prefetch.
Integer increment value of y prefetch.
Integer pointer to distance.
&xmemory, 2,
&ymemory, 2,
&distance);
&xmemory, 2,
&ymemory, 2,
&distance);
DS51284F-page 139