FRESULT f_read ( ... )

typedef enum {
FR_OK = 0,
FR_DISK_ERR,
FR_INT_ERR,
FR_NOT_READY,
FR_NO_FILE,
FR_NO_PATH,
FR_INVALID_NAME,
FR_DENIED,
FR_EXIST,
FR_INVALID_OBJECT,
FR_WRITE_PROTECTED,
FR_INVALID_DRIVE,
FR_NOT_ENABLED,
FR_NO_FILESYSTEM,
FR_MKFS_ABORTED,
FR_TIMEOUT,
FR_LOCKED,
FR_NOT_ENOUGH_CORE,
FR_TOO_MANY_OPEN_FILES,
FR_INVALID_PARAMETER
} FRESULT;

typedef enum
{
TRUE,
FALSE,
NONE
}VOTE_TYPE; 

VOTE_TYPE vote;

...

if((vote==FALSE)||(vote==NONE)) while(1);
...

unsigned char receive_data(unsigned char *received_data)
{
/* Return value:
   0: Timeout
   1: Success
*/
timeout=TIMEOUT_VALUE;
do
{ 
  if(UCSRA&(1«RXC))
  {  
   *received_data=UDR;  
   return 1;
  }
}
while(timeout);
return 0;
}

if(timeout) timeout-;

data=data>=0?data:-data;

-

unsigned short x=1;
long z;
z=-x;

z=-(long)x;

#if defined( __ICCAVR__ )
#include <ioavr.h>
#elif defined (__CODEVISIONAVR__)
#include <io.h>
#elif defined( __GNUC__ )
#include <avr/io.h>
#else
#error Compiler not supported
#endif

volatile unsigned long data32;

...
cli();
data32++;
sei();
...

...
data32=0;
...

C=0.01.i/Vr

union
{
unsigned char flags_byte;
struct
{
  unsigned char bit0:1;
  unsigned char bit1:1;
  unsigned char bit2:1;
  unsigned char bit3:1;
  unsigned char bit4:1;
  unsigned char bit5:1;
  unsigned char bit6:1;
  unsigned char bit7:1;  
}flags;
};
...
flags_byte=0xf5;
flags.bit3=1;
flags.bit7=0;
...

Public Function myround(n As Double)
Dim m As Double
If n >= 0 Then
  If (n - Int(n)) >= 0.5 Then
   myround = (1 + Int(n))
  Else
   myround = Int(n)
  End If
Else
m = -n
If (m - Int(m)) >= 0.5 Then
   myround = -(1 + Int(m))
  Else
   myround = -Int(m)
  End If
End If
End Function

Public Function myround(n As Double)
Dim m As Double
If n >= 0 Then
  m = n + 0.5
  myround = Int(m)
Else
  m = -(n - 0.5)
  myround = -Int(m)
End If
End Function

belogic.com/uzebox/

The FBs-PLC’s design incorporates a “System on Chip” (SoC) developed in-house by Fatek Corporation. The BGA chip consists of over 120,000 gates ...

https://www.nxp.com/docs/en/data-sheet/PCF8883.pdf

#define pgm_read_byte(x)  (*((unsigned char __flash *)(x)))

struct
{
unsigned char x:1;
unsigned char y:1;
}flags;

flags.x=flags.x?0:1;

void GPIO_ClearInt(uint8_t portNum, uint32_t bitValue)
{
if(portNum == 0)
  LPC_GPIOINT->IO0IntClr = bitValue;
else if (portNum == 2)
  LPC_GPIOINT->IO2IntClr = bitValue;
else
//Invalid portNum
while(1);
}

sbi portb,0
cbi portb,0
sbi portb,0
cbi portb,0
sbi portb,0
cbi portb,0

clr r16
ldi r17,1
...
out portb,r16
out portb,r17
out portb,r16
out portb,r17
out portb,r16
out portb,r17

loop:
sbi portb,0
cbi portb,0
rjmp loop

while(1) PORTB^=0x01;

loop:
ldi r16,1
in r17,portb
eor r17,r16
out portb,r17
rjmp loop