Built-in Functions
Function:
Shifts a bit into an array or structure. The address may be an array identifier or an
address to a structure (such as &data). Bit 0 of the lowest byte in RAM is treated
as the LSB.
Availability: All devices
Requires:
Examples:
Nothing
// reads 16 bits from pin A1, each bit is read
// on a low to high on pin A2
struct {
byte time;
byte command : 4;
byte source
: 4;} msg;
for(i=0; i<=16; ++i) {
while(!input(PIN_A2));
shift_right(&msg,3,input(PIN_A1));
while (input(PIN_A2)) ;}
// This shifts 8 bits out PIN_A0, LSB first.
for(i=0;i<8;++i)
output_bit(PIN_A0,shift_right(&data,1,0));
Example
Files:
Also See:
sleep( )
Syntax:
shift_left(), rotate_right(), rotate_left(),
sleep(mode)
Parameters: mode - for most chips this is not used. Check the device header for special options
on some chips.
Returns:
Function:
Undefined
Issues a SLEEP instruction. Details are device dependent. However, in general the
part will enter low power mode and halt program execution until woken by specific
external events. Depending on the cause of the wake up execution may continue
after the sleep instruction. The compiler inserts a sleep() after the last statement in
main().
Availability: All devices
285
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